CSM_H7E_-N_DS_E_9_1
1
Self-powered Totalizer
New H7E
Compact Economical Totalizer with High Visibility
Available with Backlit LCD Display
• Large display with 8.6-mm character heig ht.
• Includes new models with backlight for improved visibility in dimly lit places. (Requires 24-VDC power supply.)
• Black and light-gray cases now available.
• PNP/NPN universal DC voltage input types now available.
• Battery is replaceable for Totalizer reuse and conservation of the environment.
• Key-protect switch to prevent faulty reset key operation.
• Dual operation mode.
• Front face compatible with NEMA4/IP66.
• Short body, all models have a depth of 48.5 mm.
• Finger protection terminal block conforms to VDE0106, Part100.
• Conforms to UL, CSA, and CE mark ing.
Conforms to EN61010-1 (pollution degree 2/overvoltage category III.)
• Conforms to EMC standards and EN61326, thus allowing use in residential, commercial and light- and heavy-industry environ-
ments.
• Six-language instruction manual provided.
• PCB-mounting models available. (Requires 3-V power supply.)
■Broad Line-up of the New H7E Series
Contents
Self-powered Totalizers
H7EC..................................................................................................................... 2
H7ET..................................................................................................................... 9
H7ER..................................................................................................................... 16
H7E@-N@P ........................................................................................................... 22
Common to All Totalizers
Accessories........................................................................................................... 27
Precautions ........................................................................................................... 29
New H7E
Total Counter
• 8-digit Time Counter Tachometer
New H7EC New H7ET New H7ER New H7E@-N@P
PCB-mounting Counter
• Total Counter (8-digit)
• Time Counter (999999.9h)
• 999999.9h/
3999d23.9h
• 999h59min59s/
9999h59.9min
• 1,000 s-1 with
1 pulse/rev. encoder
• 1,000.0 s-1 with
10 pulse/rev. encoder
• 1,000 min-1 with
60 pulse/rev. encoder
• 10,000 min-1 with
60 pulse/rev. encoder
• 1,000.0 min-1 with
600 pulse/rev. encoder
2
Self-powered Total Counter
New H7EC
• Eight-digits, counting range 0 to 99999999.
• Dual input speed: 30 Hz ←→ 1 kHz (except for AC/DC multi-
voltage input models)
For the most recent informat ion on models that have been certified f or
safety standards, refer to your OMRON website.
Model Number Structure
■Model Number Legend
Note: Some configurations are not available.
Note:
Estimates can be provided for coatings and other specifications that are not given in the datasheet. Ask your OMRON representative for details.
Ordering Information
■Total Counters
■Accessories (Order Separately)
Note: 1. Provided with H7EC. (Order additional Brackets separately as required.)
2. Built into H7EC. Order replacements using the above model number before the service life expires.
123
H7EC - N -
1. Count Input
2. Case Color
3. Display
None: No-voltage input
V: PNP/NPN universal DC voltage input
FV: AC/DC multi-voltage input
None: Light gray
B: Black
None: 7-segment LCD without backlight
H: 7-segment LCD with backlight
Count input Max. counting speed Display Model
Light-gray body Black body
PNP/NPN universal DC
voltage input
(4.5 to 30 VDC)
30 Hz ←→ 1 kHz
(switchable) 7-segment LCD with
backlight H7EC-NV-H H7EC-NV-BH
7-segment LCD H7EC-NVH7EC-NV-B
A C/DC multi-voltage input
(24 to 240 VAC/VDC) 20 Hz 7-segment LCD H7EC-NFVH7EC-NFV-B
No-voltage 30 Hz ←→ 1 kHz
(switchable) 7-segment LCD H7EC-N H7EC-N-B
Name Model
Compact Flush Mounting Bracket Y92F-35
Flush Mounting Bracket (See note 1) Y92F-34
Wire-wrap Terminal (set of two Terminals) Y92S-37
Lithium Battery (See note 2) Y92S-36
Waterproof Packing (See note 1) Y92S-32
New H7EC
3
Specifications
■General
Note: 1. Separately ordered Wire-wrap Terminals (Y92S-37) are required.
2. Only PNP/NPN universal DC voltage input models (-H models) have a backlight.
■Ratings
Note: ON/OFF ratio 1:1
Item H7EC-NV-@
H7EC-NV-@HH7EC-NFV-@H7EC-N-@
Operating mode Up type
Mounting method Flush mounting
External connections Screw terminals, optional Wire-wrap Terminals (see note 1)
Reset External/Manual reset
Number of digits 8
Count input PNP/NPN universal DC voltage in-
put AC/DC multi-voltage input No-voltage input
Display 7-segment LCD with or without backlight, zero suppression (character height: 8.6 mm) (see note 2)
Max. counting speed 30 Hz/1 kHz 20 Hz 30 Hz/1 kHz
Case color Light gray or black (-B models)
Attachment Waterproof packing, Y92F-34 Flush Mounting Bracket
Approved standard UL863, CSA C22.2 No.14, Lloyds
Conforms to EN61010-1/IEC61010-1 (Pollution degree2/overvoltage category III)
Conforms to VDE0106/P100
Item H7EC-NV-@
H7EC-NV-@HH7EC-NFV-@H7EC-N-@
Supply voltage Backlight model: 24 VDC (0.3 W max.)
(only for backlight)
No-backlight model: Not required
(powered by built-in battery)
Not required (powered by built-in battery)
Count input High (logic) level: 4.5 to 30 VDC
Low (logic) level: 0 to 2 VDC
(Input impedance: Approx. 4.7 kΩ)
High (logic) level: 24 to 240 VAC/VDC,
50/60 Hz
Low (logic) level: 0 to 2.4 VAC/VDC, 50/
60 Hz
No voltage input
Maximum short-circuit impedance:
10 kΩ max.
Short-circuit residual voltage: 0.5 V max.
Minimum open impedance: 750 kΩ min.
Reset input No voltage input
Maximum short-circuit impedance:
10 kΩ max.
Short-circuit residual voltage: 0.5 V max.
Minimum open impedance: 750 kΩ min.
Max. counting
speed (see note) 30 Hz or 1 KHz
(Switchable with switch) 20 Hz 30 Hz or 1 KHz
(Switchable with switch)
Minimum signal
width 20 Hz: 25 ms
30 Hz: 16.7 ms
1 KHz: 0.5 ms
Reset system External reset and manual reset: Minimum signal width of 20 ms
Terminal screw
tightening torque 0.98 N·m max.
Ambient tempera-
ture Operating: –10°C to 55°C (with no condensation or icing)
Storage: –25°C to 65°C (with no condensation or icing)
Ambient humidity Operating 25% to 85%
New H7EC
4
■Characteristics
Note: Weight includes waterproof packing and flush mounting bracket.
■Reference Value
Item H7EC-NV-@
H7EC-NV-@HH7EC-NFV-@H7EC-N-@
Insulation resistance 100 MΩ min. (at 500 VDC) between
current-carrying metal parts and ex-
posed non-current-carrying metal
parts, and between the backlight power
supply terminal and count input termi-
nals/reset terminals for backlight mod-
els
100 MΩ min. (at 500 VDC) between
current-carrying metal parts and ex-
posed non-current-carrying metal parts
and between count input terminals and
reset terminals
100 MΩ min. (at 500 VDC) between
current-carrying metal parts and ex-
posed non-current-carrying metal parts
Dielectric strength 1,000 V A C, 50/60 Hz f or 1 min between
current-carrying metal parts and ex-
posed non-current-carrying metal parts
and between the backlight power sup-
ply terminal and count input terminals/
reset terminals for backlight models
3,700 V A C, 50/60 Hz f or 1 min between
current-carrying metal parts and ex-
posed non-current-carrying metal parts
2,200 V A C, 50/60 Hz f or 1 min between
reset terminals and exposed non-cur-
rent-carrying metal parts and between
count input terminals and reset termi-
nals
1,000 V A C , 50/60 Hz for 1 min between
current-carrying metal parts and ex-
posed non-current-carrying metal parts
Impulse withstand
voltage 4.5 kV between current-carrying termi-
nal and exposed non-current-carrying
metal parts
4.5 kV between current-carrying termi-
nal and exposed non-current-carrying
metal parts
3 kV between input terminals and reset
terminals
4.5 kV between current-carrying termi-
nal and exposed non-current-carrying
metal parts
Noise immunity Square-wave noise generated by noise simulator (pulse width: 100 ns/1 µs, 1-ns rise)
±600 V (Between count input terminals/
Between reset terminals)
±480 V (Between the backlight power
supply terminals for backlight models)
±1.5 kV (Between count input termi-
nals)
±500 V (Between reset terminals)
±500 V (Between count input terminals/
Between reset terminals)
Static immunity ±8 kV (malfunction)
Vibration resistance Malfunction: 0.15-mm single amplitude at 10 to 55 Hz for 10 min each in 3 directions
Destruction: 0.375-mm single amplitude at 10 to 55 Hz for 2 hrs each in 3 directions
Shock resistance Malfunction: 200 m/s2 3 times each in 6 directions
Destruction: 300 m/s2 3 times each in 6 directions
EMC (EMI) EN61326
Emission Enclosure: EN55011 Group 1 class B
(EMS) EN61326
Immunity ESD: EN61000-4-2: 4 kV contact discharge (level 2)
8 kV air discharge (level 3)
Immunity RF-interference from AM Radio Waves:
EN61000-4-3: 10 V/m (80 MHz to 1 GHz) (level 3)
Immunity RF-interference from Pulse-modulated Radio Waves:
EN61000-4-3: 10 V/m (900 MHz ± 5 MHz) (level 3)
Immunity Conducted Disturbance: EN61000-4-6: 10 V (0.15 to 80 MHz) (level 3)
Immunity Burst: EN61000-4-4: 2 kV power line (level 3)
2 kV I/O signal line (level 4)
Degree of protection Front panel: IP66, NEMA4
Terminal block: IP20
Weight (see note) No-backlight model: Approx. 60 g
Backlight model: Approx. 65 g Approx. 60 g Approx. 60 g
Item Value Note
Battery life 7 years min. with continuous input at 25°C
(lithium battery) The battery life is calculated according to the conditions in the left column and
therefore is not a guaranteed value. Use these value as reference for mainte-
nance or replacement.
New H7EC
5
Connections
■Terminal Arrangement
Bottom view: View of the Total Counter rotated horizontally 180°
■Connections
H7EC Total Counter
Note: 1. Terminals 2 and 4 (input circuit and rese t circuit) are func-
tionally isolated.
2. Select input transistors according to the following:
Dielectric strength of the collector ≥ 50 V
Leakage current < 100 µA
Backlight Model No-backlight Model
Backlight
24 VDC
Count
input Reset
input
Count
input Reset
input
PNP/NPN Universal DC Voltage Input Model With Backlight
1. Contact Input (Input by a Relay or Switch Contact) 2. Solid-state Input
Relay
Input Reset
Relay
or Switch or Switch
Input Reset
Backlight
24 VDC
Open collector of a
PNP transistor Open collector of a
PNP transistor
Backlight
24 VDC
or Open collector of an
NPN transistor or Open collector of an
NPN transistor
New H7EC
6
No-voltage Input Model
1. Contact Input (Input by a Relay or Switch Contact)
AC/DC Multi-voltage Input Model
PNP/NPN Universal DC Voltage Input Model Without Backlight
1. Contact Input (Input by a Relay or Switch Contact)
2. Solid-state Input
Relay Input Reset Relay
or Switch or Switch
or Switch
Input Reset
Relay
Relay
Input Reset
or Switch or Switch
Relay
Input Reset
Relay
or Switch or Switch
Input Reset
Open collector of a
PNP transistor Open collector of a
PNP transistor
or Open collector of an
NPN transistor or Open collector of an
NPN transistor
Note: 1. Terminals 2 and 4 (input circuit and reset circuit) are
functionally isolated.
2. Select input transistors according to the following:
Dielectric strength of the collector ≥ 50 V
Leakage current < 100 µA
or Open collector of
an NPN transistor
Note: Select input transistors according to the following:
Dielectric strength of the collector ≥ 50 V
Leakage current < 1 µA
Terminals 2 and 4 are
internally connected.
Note: Use Relays and Switches that have high contact
reliability because the current flowing from terminals
1 or 3 is small. It is recommended that OMRON's
G3TA-IA/ID be used as the SSR.
2. Solid-state Input
(Open Collector Input of an NPN Transistor)
Open collector of an
NPN transistor Open collector of an
NPN transistor
Terminals 2 and 4 are
internally connected.
Note: 1. Residual voltage in the output section of Proximity
Sensors or Photoelectric Sensors becomes less than
0.5 V because the current flowing from terminals 1 or 3
is small thus allowing easy connection.
2. Select input transistors according to the following:
Dielectric strength of the collector ≥ 50 V
Leakage current < 1 µA
New H7EC
7
Operation
■Operating Modes
Nomenclature
Note: 1. Perform switch setting before mounting to a control panel.
2. If the counting speed setting is changed, the present value will not be held. Press the Reset Key on the front panel.
3. Key protection is used to prohibit operating the Reset Key. The reset input terminals will still be functional.
H7EC Total Counter
Reset
Counting display values
Full-scale
Count input
Incrementing Operation
(Up)
(Full-scale
−1)
H7EC
1 kHz
Front view
Bottom view
Reset Key
Key-protect Switch
Counting speed switch
Key-protect
Front panel
ON
Terminal block
Counting speed
Front panel
Terminal block
For all models except for H7EC-NFV-@.
If the counting speed setting is changed,
the present value will not be held and so
press the Reset Key on the front panel.
Setting
(see note)
30 Hz
(default setting)
Setting
(see note)
OFF
(default setting)
Reset the count value. Not operable
under key-protect.
Concave
side
Concave
side
The Reset Key is not operable while the
key-protect switch is set to ON.
Concave
side
Concave
side
New H7EC
8
Dimensions
Note: All units are in millimeters unless otherwise indicated.
H7EC-N
Note: A Compact Flush Mounting Bracket (Y92F-35) can also be used. Refer to Accessories for details.
22.2
+0.5
0
45
+0.5
0
22.2
+0.5
0
Panel Cutout
Dimensions with Y92F-34 Flush Mounting Bracket
Separate mounting
Dense mounting
40 min.
(48 Units − 2.5)+1.0
0
Waterproofing is not possible for
dense mounting
• When mounting, insert the Counter into
the cutout, insert the adapter from the
back and push in the Counter while
making the gap between the front panel
and the cutout panel as small as
possible. Use screws to secure the
Counter. If waterproofing is desired,
insert the waterproof packing.
• When several Counters are installed,
ensure that the ambient temperature
will not exceed specifications.
• The appropriate thickness of the panel
is 1 to 5 mm.
M3.5 terminal screw
9
Self-powered Time Counter
New H7ET
• Seven digits, time range 0 to 3999d23.9h.
• Dual time range: 999999.9 ←→ 3999d23.9h or
999h59m59s ←→ 9999h59.9 m
For the most recent informat ion on models that have been certified f or
safety standards, refer to your OMRON website.
Model Number Structure
■Model Number Legend
Note: Some configurations are not available.
Note:
Estimates can be provided for coatings and other specifications that are not given in the datasheet. Ask your OMRON representative for details.
Ordering Information
■Time Counters
■Accessories (Order Separately)
Note: 1. Provided with H7ET. (Order additional Brackets separately as required.)
2. Built into H7ET. Order replacements using the above model number before the ser vice life expires.
12 34
H7ET - N -
1. Count Input
2. Time Range
3. Case Color
4. Display
None: No-voltage input
V: PNP/NPN universal DC voltage input
FV: AC/DC multi-voltage input
None: 999999.9h/3999d23.9h
1: 999h59m59s/9999h59.9m
None: Light gray
B: Black
None: 7-segment LCD without backlight
H: 7-segment LCD with backlight
Timer input Display Time range
999999.9h ←→ 3999d23.9h
(switchable) 999h59min59s ←→ 9999h59.9min
(switchable)
Light-gray body Black body Light-gray body Black body
PNP/NPN universal DC volt-
age input
(4.5 to 30 VDC)
7-segment LCD with back-
light H7ET-NV-H H7ET-NV-BH H7ET-NV1-H H7ET-NV1-BH
7-segment LCD H7ET-NVH7ET-NV-B H7ET-NV1H7ET-NV1-B
AC/DC multi-voltage input
(24 to 240 VAC/VDC) 7-segment LCD H7ET-NFVH7ET-NFV-B H7ET-NFV1H7ET-NFV1-B
No-voltage input 7-segment LCD H7ET-N H7ET-N-B H7ET-N1 H7ET-N1-B
Name Model
Compact Flush Mounting Bracket Y92F-35
Flush Mounting Bracket (See note 1) Y92F-34
Wire-wrap Terminal (set of two terminals) Y92S-37
Lithium Battery (See note 2) Y92S-36
Waterproof Packing (See note 1) Y92S-32
New H7ET
10
Specifications
■General
Note: 1. Only PNP/NPN universal DC voltage input models (-H models) have a backlight.
2. The frequency range for an AC voltage is 50 to 60 Hz.
3. “-hours”, “-d-h”, “-h-m”, and “-h-m-s” labels are included.
4. Zero suppression: Zeros are not displayed to increase readability. For example, "000008.2" is displayed as "8.2" if zero suppression is
set. If the range is set to 3999d23.9h, the value is "008.2".
■Ratings
Item H7ET-NV-@
H7ET-NV-@HH7ET-NFV-@H7ET-N-@H7ET-NV1-@
H7ET-NV1-@HH7ET-NFV1-@H7ET-N1-@
Operating mode Accumulating
Mounting method Flush mounting
External connections Screw terminals
Reset External/Manual reset
Display 7-segment LCD with or without backlight, zero suppression (character height: 8.6 mm) (see note 1)
Number of digits 7
Time range 0.0h to 999999.9h ←→ 0.0h to 3999d23.9h
(switchable with switch) 0s to 999h59min59s ←→ 0.0min to 9999h59.9min
(switchable with switch)
Timer input PNP/NPN univer-
sal DC voltage in-
put
AC/DC multi-volt-
age input No-voltage input
(see note 2) PNP/NPN univer-
sal DC voltage in-
put
AC/DC multi-volt-
age input No-voltage input
Case color Light gray or black (-B models)
Attachment Waterproof packing, Y92F-34 Flush Mounting Bracket, time unit labels (see note 3)
Approved standard UL863, CSA C22.2 No.14, Lloyds
Conforms to EN61010-1/IEC61010-1 (pollution degree2/overvoltage category III)
Conforms to VDE0106/P100
Item H7ET-NV@-@
H7ET-NV@-@HH7ET-NFV@-@H7ET-N@-@
Supply voltage Backlight model: 24 VDC (0.3 W max.)
(for backlight)
No-backlight model: Not required (pow-
ered by built-in battery)
Not required (powered by built-in battery)
Timer input High (logic) level: 4.5 to 30 VDC
Low (logic) level: 0 to 2 VDC
(Input impedance: Approx. 4.7 kΩ)
High (logic) level: 24 to 240 VAC/VDC,
50/60 Hz
Low (logic) level: 0 to 2.4 VAC/VDC, 50/
60 Hz
No voltage input
Maximum short-circuit impedance:
10 kΩ max.
Short-circuit residual voltage: 0.5 V max.
Minimum open impedance: 750 kΩ min.
Reset input No voltage input
Maximum short-circuit impedance:
10 kΩ max.
Short-circuit residual voltage: 0.5 V max.
Minimum open impedance: 750 kΩ min.
Minimum pulse
width 1 s
Reset system External reset and manual reset: Minimum signal width of 20 ms
Te rminal screw
tightening torque 0.98 N·m max.
Ambient tempera-
ture Operating: –10°C to 55°C (with no condensation or icing)
Storage: –25°C to 65°C (with no condensation or icing)
Ambient humidity Operating: 25% to 85%
New H7ET
11
■Characteristics
Note: Weight includes waterproof packing and flush mounting bracket.
■Reference Value
Item H7ET-NV@-@
H7ET-NV@-H@H7ET-NFV@-@H7ET-N@-@
Time accuracy ±100 ppm (25°C)
Insulation resistance 100 MΩ min. (at 500 VDC) between
current-carrying metal parts and ex-
posed non-current-carrying metal
parts, and between the backlight pow-
er supply and timer input terminals/re-
set terminals for backlight models
100 MΩ min. (at 500 VDC) between
current-carrying metal parts and ex-
posed non-current-carrying metal
parts and between timer input termi-
nals and reset terminals
100 MΩ min. (at 500 VDC) between
current-carrying metal parts and ex-
posed non-current-carrying metal
parts
Dielectric strength 1,000 V AC, 50/60 Hz for 1 min between
current-carrying metal parts and ex-
posed non-current-carrying metal
parts and between the backlight power
supply and timer input terminals/reset
terminals for backlight models
3,700 V AC, 50/60 Hz for 1 min between
timer input terminals and exposed non-
current-carrying metal parts
2,200 V AC, 50/60 Hz for 1 min between
reset terminals and exposed non-cur-
rent-carrying metal parts and between
timer input terminals and reset termi-
nals
1,000 V AC, 50/60 Hz for 1 min between
current-carrying metal parts and ex-
posed non-current-carrying metal
parts
Impulse withstand
voltage 4.5 kV between current-carrying termi-
nal and exposed non-current-carrying
metal parts
4.5 kV between current-carrying termi-
nal and exposed non-current-carrying
metal parts
3 kV between timer input terminals and
reset terminals
4.5 kV between current-carrying termi-
nal and exposed non-current-carrying
metal parts
Noise immunity Square-wave noise generated by noise simulator (pulse width: 100 ns/1 µs, 1-ns rise)
±600 V (Between timer input terminals/
Between reset terminals)
±480 V (Between the backlight power
supply terminals for backlight models)
±1.5 kV (Between timer input termi-
nals)
±500 V (Between reset terminals)
±500 V (Between timer input terminals/
Between reset terminals)
Static immunity ±8 kV (malfunction)
Vibration resistance Malfunction: 0.15-mm single amplitude at 10 to 55 Hz for 10 min each in 3 directions
Destruction: 0.375-mm single amplitude at 10 to 55 Hz for 2 hrs each in 3 directions
Shock resistance Malfunction: 200 m/s2 3 times each in 6 directions
Destruction: 300 m/s2 3 times each in 6 directions
EMC (EMI) EN61326
Emission Enclosure: EN55011 Group 1 class B
(EMS) EN61326
Immunity ESD: EN61000-4-2: 4 kV contact discharge (level 2)
8 kV air discharge (level 3)
Immunity RF-interference from AM Radio Waves:
EN61000-4-3: 10 V/m (80 MHz to 1 GHz) (level 3)
Immunity RF-interference from Pulse-modulated Radio Waves:
EN61000-4-3: 10 V/m (900 MHz ± 5 MHz) (level 3)
Immunity Conducted Disturbance: EN61000-4-6: 10 V (0.15 to 80 MHz) (level 3)
Immunity Burst: EN61000-4-4: 2 kV power line (level 3)
2 kV I/O signal line (level 4)
Degree of protection Front panel: IP66, NEMA4 with waterproof packing
Terminal block: IP20
Weight (see note) No-backlight model: Approx. 60 g
Backlight model: Approx. 65 g Approx. 60 g Approx. 60 g
Item Value Note
Battery life 10 years min. with continuous input at
25°C (lithium battery) The battery life is calculated according to the conditions in the left column and
therefore is not a guaranteed value. Use these value as reference for mainte-
nance or replacement.
New H7ET
12
Connections
■Terminal Arrangement
Bottom view: View of the Time Counter rotated horizontally 180°
■Connections
H7ET Time Counter
Note: 1. Ter minals 2 and 4 (input circuit and reset circuit) are func-
tionally isolated.
2. Select input transistors according to the following:
Dielectric strength of the collector ≥ 50 V
Leakage current < 1 µA
Backlight Model No-backlight Model
Backlight
24 VDC
Timer
input Reset
input
Timer
input Reset
input
PNP/NPN Universal DC Voltage Input Model With Backlight
1. Contact Input (Input by a Relay or Switch Contact)
Relay
Input Reset
Relay
or Switch or Switch
Input Reset
2. Solid-state Input
Backlight
24 VDC
Open collector of a
PNP transistor Open collector of a
PNP transistor
Backlight
24 VDC
or Open collector of an
NPN transistor or Open collector of an
NPN transistor
New H7ET
13
Relay
No-voltage Input Model
1. Contact Input (Input by a Relay or Switch Contact)
AC/DC Multi-voltage Input Model
PNP/NPN Universal DC Voltage Input Model Without Backlight
1. Contact Input (Input by a Relay or Switch Contact)
2. Solid-state Input
Relay
Input Reset
Relay
or Switch or Switch
Input Reset
Relay
Relay
Input Reset
or Switch or Switch
or Switch
Input Reset
Relay Input Reset Relay
or Switch or Switch
Open collector of a
PNP transistor Open collector of a
PNP transistor
or Open collector of an
NPN transistor or Open collector of an
NPN transistor
Note: 1. Terminals 2 and 4 (input circuit and reset circuit) are
functionally isolated.
2. Select input transistors according to the following:
Dielectric strength of the collector ≥ 50 V
Leakage current < 1 µA
or Open collector of
an NPN transistor
Terminals 2 and 4 are
internally connected.
Note: Use Relays and Switches that have high contact
reliability because the current flowing from terminals 1
or 3 is as small as approx. 10 µA. It is recommended
that OMRON's G3TA-IA/ID be used as the SSR.
2. Solid-state Input
(Open Collector Input of an NPN Transistor)
Open collector of an
NPN transistor Open collector of an
NPN transistor
Terminals 2 and 4 are
internally connected.
Note: 1. Residual voltage in the output section of Proximity
Sensors or Photoelectric Sensors becomes less
than 0.5 V because the current flowing from
terminals 1 or 3 is as small as approx. 10 µA, thus
allowing easy connection.
2. Select input transistors according to the following:
Dielectric strength of the collector ≥ 50 V
Leakage current < 1 µA
New H7ET
14
Operation
■Operating Modes
Nomenclature
Note: Perform switch setting before mounting to a control panel.
H7ET Time Counter
Full-scale
Reset
Timer input
Timer display values
Incrementing Operation
(Up)
Internal clock
timer value
(Full-scale
−0.1 (1))
H7ET
F
ront v
i
ew
Bottom view
Reset Key
Display Values for a Time Range of ”0.0h to 3999d23.9h”
Key-protect Switch
Time-range switch
Key-protect
Front panel
ON
Terminal block
H7ET-N@@-@@
Front panel
0.0h to 3999d23.9h
Terminal block
Time range
H7ET-N@@1-@@
0.0min to 9999h59.9min
If the time-range setting is
changed, the present
value will not be held and
so press the Reset Key on
the front panel.
If the time-range switch is set to ”0.0h to 3999d23.9h,” the four leftmost digits are the number of days and the three rightmost
digits are the number of hours.
The initial value after resetting is 000.00 (0 days, 00.0 hours).
After ”023.9” (0 days, 23.9 hours), the display will change to ”100.0” (1 days, 00.0 hours).
LCD Examples for ”0.0h to 3999d23.9h” Range
Setting
(see note)
0.0h to 999999.9h
(default setting)
0s to 999h59min59s
(default setting)
Setting
(see note)
OFF
(default setting)
Reset the count value. Not operable
under key-protect.
Location to Attach
Unit Label
Attach the correct unit
label for the time range
that is set.
Concave
side
Concave
side
Concave
side
Concave
side
The Reset Key is not operable while the
key-protect switch is set to ON.
d h d h d h
After 24
hours, 54
minutes After 24
hours
New H7ET
15
Dimensions
Note: All units are in millimeters unless otherwise indicated.
H7ET-N
Note: A Compact Flush Mounting Bracket (Y92F-35) can also be used. Refer to Accessories for details.
22.2+0.5
0
45+0.5
0
22.2+0.5
0
Dimensions with Y92F-34 Flush Mounting Bracket
Panel Cutout
Separate mounting
Dense mounting
40 min.
(48 Units − 2.5)+1.0
0
Waterproofing is not possible
for dense mounting
• When mounting, insert the Counter into
the cutout, insert the adapter from the
back and push in the Counter while
making the gap between the front panel
and the cutout panel as small as
possible. Use screws to secure the
Counter. If waterproofing is desired,
insert the waterproof packing.
• When several Counters are installed,
ensure that the ambient temperature
will not exceed specifications.
• The appropriate thickness of the panel
is 1 to 5 mm.
16
Self-powered Tachometer
New H7ER
• Revolutions displayed up to five digits.
• Dual revolution display according to encoder resolution used;
1000 s–1/1000 min–1 or 1000.0 s–1 /1000.0 min–1
• Switchable dual revolution display type available (-NV1 models);
extended up to 10000 min–1
For the most recent informat ion on models that have been certified f or
safety standards, refer to your OMRON website.
Model Number Structure
■Model Number Legend
Note: Some configurations are not available.
Note:
Estimates can be provided for coatings and other specifications that are not given in the datasheet. Ask your OMRON representative for details.
Ordering Information
■Tachometers
■Accessories (Order Separately)
Note: 1. Provided with H7ER. (Order additional Brackets separately as required.)
2. Built into H7ER. Order replacements using the above model number before the service life expires.
12 34
H7ER - N -
1. Count Input
2. Number of Digits
3. Case Color
4. Display
None: No-voltage input
V: PNP/NPN universal DC voltage input
None: 4 digits
1: 5 digits
None: Light gray
B: Black
None: 7-segment LCD without backlight
H: 7-segment LCD with backlight
Count input Display Max. revolutions displayed (applicable encoder resolution)
1000 s–1 (1 pulse/rev.),
1000 min–1 (60 pulse/rev.) 1000.0 s–1 (10 pulse/rev.),
1000.0 min–1 (600 pulse/rev.) ←→
10000 min–1 (60 pulse/rev.) (switchable)
Light-gray body Black body Light-gray body Black body
PNP/NPN universal
DC voltage input
(4.5 to 30 VDC)
7-segment LCD
with backlight H7ER-NV-H H7ER-NV-BH H7ER-NV1-H H7ER-NV1-BH
7-segment LCD H7ER-NV H7ER-NV-B H7ER-NV1 H7ER-NV1-B
No-voltage input 7-segment LCD H7ER-N H7ER-N-B --- ---
Name Model
Compact Flush Mounting Bracket Y92F-35
Flush Mounting Bracket (See note 1) Y92F-34
Wire-wrap Terminal (set of two terminals) Y92S-37
Lithium Battery (See note 2) Y92S-36
Waterproof Packing (See note 1) Y92S-32
New H7ER
17
Specifications
■General
Note: 1. Reset is not available.
2. When there is no input, the display will be 0.0 or 0.
3. Separately ordered Wire-wrap Terminals (Y92S-37) are required.
4. Only PNP/NPN Universal DC voltage input models have a backlight.
5. “rpm”, “rps”, “s–1” and “min–1” labels are included.
6. "s-1" in "1,000 s-1" means the same thing as RPS. "min-1" means the same thing as RPM.
■Ratings
Note: 5-digit models :1 kHz/10 kHz switchable.
Item H7ER-NV-@
H7ER-NV-@HH7ER-N-@H7ER-NV1-@
H7ER-NV1-@H
Operating mode Up type
Mounting method Flush mounting
External connections Screw terminals, Wire-wrap Terminals (see note 3)
Display 7-segment LCD with or without backlight, zero suppression (character height: 8.6 mm) (see note 4)
Number of digits 45
Count input PNP/NPN universal DC
voltage input No-voltage input PNP/NPN universal DC voltage input
Max. counting speed 1 kHz 10 kHz
Max. revolutions displayed
(see note 5, 6) 1,000 s–1 (When encoder resolution of 1 pulse/rev is
used.)
1,000 min–1 (When encoder resolution of 60 pulse/
rev is used.)
1,000.0 s–1 (When encoder resolution of 10 pulse/rev
is used.)
1,000.0 min–1 (When encoder resolution of
600 pulse/rev is used.)
←→ 10,000 min–1 (When encoder resolution of
60 pulse/rev is used.)
(Switchable with switch)
Attachment Waterproof packing, Y92F-34 Flush Mounting Bracket, revolution unit labels (see note 5)
Approved standard UL863, CSA C22.2 No.14, Lloyds
Conforms to EN61010-1/IEC61010-1 (Pollution degree2/overvoltage category III)
Conforms to VDE0106/P100
Item H7ER-NV@-@
H7ER-NV@-@HH7ER-N-@
Supply voltage Backlight model: 24 VDC (0.3 W max.) (for bac klight
lit)
No-backlight model: Not required (powered by built-
in battery)
Not required (powered by built-in battery)
Count input High (logic) level: 4.5 to 30 VDC
Low (logic) level: 0 to 2 VDC
(Input impedance: Approx. 4.7 kΩ)
No voltage input
Maximum short-circuit impedance: 10 kΩ max.
Short-circuit residual voltage: 0.5 V max.
Minimum open impedance: 750 kΩ min.
Max. counting speed 4-digit models:1 kHz
5-digit models:10 kHz 1 kHz
Minimum signal width 10 kHz:0.05 ms
1 kHz: 0.5 ms (See note.)
Terminal screw tightening torque 0.98 N·m max.
Ambient temperature Operating: –10°C to 55°C (with no condensation or icing)
Storage: –25°C to 65°C (with no condensation or icing)
Ambient humidity Operating: 25% to 85%
New H7ER
18
■Characteristics
Note: Weight includes waterproof packing and flush mounting bracket.
■Reference Value
Item H7ER-NV@-@
H7ER-NV@-@HH7ER-N-@
Insulation resistance 100 MΩ min. (at 500 VDC) between current-carrying
metal parts and exposed non-current-carrying metal
parts, and between the backlight power supply and
count input terminals/reset terminals for backlight
models
100 MΩ min. (at 500 VDC) between current-carrying
metal parts and exposed non-current-carrying metal
parts
Dielectric strength 1,000 VAC, 50/60 Hz for 1 min between current-car-
rying metal parts and exposed non-current-carrying
metal parts and between the backlight po w er supply
and count input terminals/reset terminals for back-
light models
1,000 VAC, 50/60 Hz for 1 min between current-car-
rying metal parts and exposed non-current-carrying
metal parts
Impulse withstand voltage 4.5 kV between current-carrying terminal and exposed non-current-carrying metal parts
Noise immunity Square-wave noise generated by noise simulator (pulse width: 100 ns/1 µs, 1-ns rise)
±600 V (Between count input terminals)
±480 V (Between the backlight power supply termi-
nals for backlight models)
±500 V (Between count input terminals)
Static immunity ±8 kV (malfunction)
Vibration resistance Malfunction: 0.15-mm single amplitude at 10 to 55 Hz for 10 min each in 3 directions
Destruction: 0.375-mm single amplitude at 10 to 55 Hz for 2 hrs each in 3 directions
Shock resistance Malfunction: 200 m/s2 3 times each in 6 directions
Destruction: 300 m/s2 3 times each in 6 directions
EMC (EMI) EN61326
Emission Enclosure: EN55011 Group 1 class B
(EMS) EN61326
Immunity ESD: EN61000-4-2: 4 kV contact discharge (level 2)
8 kV air discharge (level 3)
Immunity RF-interference from AM Radio Waves:
EN61000-4-3: 10 V/m (80 MHz to 1 GHz) (level 3)
Immunity RF-interference from Pulse-modulated Radio Waves:
EN61000-4-3: 10 V/m (900 MHz ± 5 MHz) (level 3)
Immunity Conducted Disturbance: EN61000-4-6: 10 V (0.15 to 80 MHz) (level 3)
Immunity Burst: EN61000-4-4: 2 kV power line (level 3)
2 kV I/O signal line (level 4)
Degree of protection Front panel: IP66, NEMA4 with waterproof packing
Term inal block: IP20
Weight (see note) No-backlight model:Approx. 60 g
Backlight model: Approx. 65 g
Item Value Note
Battery life 7 years min. with continuous input at 25°C
(lithium battery) The battery life is calculated according to the conditions in the left column and
therefore is not a guaranteed value. Use these value as reference for mainte-
nance or replacement.
New H7ER
19
Connections
■Terminal Arrangement
Bottom view: View of the Tachometer rotated horizontally 180°
■Connections
H7ER Tachometer
Note: Select input transistors according to the following:
Dielectric strength of the collector ≥ 50 V
Leakage current < 100 µA (1 µA for no-voltage input model)
Backlight Model No-backlight Model
Backlight
24 VDC
Pulse
input
Pulse
input
No-voltage Input Model
Transistor Input (Open Collector of an NPN Transistor)
PNP/NPN Universal DC Voltage Input Models Without Backlight
Transistor Input
Input
Input
or
Input
or
PNP/NPN Universal DC Voltage Input Models With Backlight
Transistor Input
Open collector of
an NPN transistor Open collector of
an PNP transistor Backlight
24 VDC
Open collector of
an NPN transistor Open collector of
an PNP transistor
Open collector of
an NPN transistor
New H7ER
20
Operation
■Operating Modes
Nomenclature
Note: Perform switch setting before mounting to a control panel.
0.25 s
Internal gate
Display refreshed
Internal count value
Counter reset Refresh
Number display
H7ER Tachometer
Incrementing Operation
Within Unit Time (Up)
Count period
(1 s) Count period
(1 s)
Previous count
value display
Display refreshed
every 1.25 s Display refreshed
every 1.25 s
1000.0 min-1
1000.0 s-1
1000 s-1
1000 min-1
H7ER
Concave
side
Concave
side
Front view
Bottom view
Counting speed switch
For H7ER-NV1-@@
Front panel
Terminal block
H7ER-NV1-@@ 60 pulse/rev. "min-1" or "rpm"
"min-1" or "rpm"
600 pulse/rev.
10 pulse/rev. "s-1" or "rps"
60 pulse/rev. "min-1" or "rpm"
1 pulse/rev. "s-1" or "rps"
Counting Speed Switch Settings and Unit Label Application
Model
Not used
Counting speed
switch setting
(see note) Max. revolutions
displayed Applicable encoder
resolution Applicable unit
label
H7ER-N-@
H7ER-NV-@@
No setting is
required
10000 min-1
(default setting)
Applicable
unit label
New H7ER
21
Dimensions
Note: All units are in millimeters unless otherwise indicated.
H7ER-N
Note: A Compact Flush Mounting Bracket (Y92F-35) can also be used. Refer to Accessories for details.
22.2+0.5
0
45+0.5
0
22.2+0.5
0
Dimensions with Y92F-34 Flush Mounting Bracket
Panel Cutout
Separate mounting
Dense mounting
40 min.
(48 Units − 2.5)+1.0
0
Waterproofing is not possible
for dense mounting
• When mounting, insert the Counter into
the cutout, insert the adapter from the
back and push in the Counter while
making the gap between the front panel
and the cutout panel as small as
possible. Use screws to secure the
Counter. If waterproofing is desired,
insert the waterproof packing.
• When several Counters are installed,
ensure that the ambient temperature
will not exceed specifications.
• The appropriate thickness of the panel
is 1 to 5 mm.
22
PCB-mounting Counters
H7E@-N@P
• Dedicated for use on PCB.
• Total Counters and Time Counter av ailable.
For the most recent informati on on models that have been certified for
safety standards, refer to your OMRON website.
Model Number Structure
■Model Number Legend
Ordering Information
■PC Board-use Counters
■Accessory (Order Separately)
12
H7E - N P
1. Function
2. Max. Counting Speed for H7EC Models
C: Total Counter
T: Time Counter
None: 1 kHz
L: 30 Hz
Count input Display Total counter Time counter
Max. counting speed
1 kHz 30 Hz
No-voltage input 7-segment LCD H7EC-NP H7EC-NLP H7ET-NP
Connecting Socket (28-pin) XR2A-2801-N
H7E@-N@P
23
Specifications
■General
■Ratings
Note: ON/OFF ratio 1:1
■Characteristics
Note: The power supply terminals of the H7E@-N@P are considered as 3-VDC control terminals.
Item Total Counter Time Counter
H7EC-NP H7EC-NLP H7ET-NP
Operating mode Up type
Mounting method Direct mounting on PC Board or mounting on 28-pin socket
Reset External reset, Power-OFF reset
Number of digits 87
Time range --- 0.0h to 999999.9h
Max. counting speed 1 kHz 30 Hz ---
Count/Timer input No-voltage input
Display 7-segment LCD (character height: 8.6 mm)
Case color Transparent
Approved standard UL863, CSA C22.2 No.14
Item H7EC-NP
H7EC-NLP H7ET-NP
Supply voltage 3 VDC (2.7 to 3.3 VDC)
Count/Timer input No voltage input
Maximum short-circuit impedance: 10 kΩ max.
Short-circuit residual voltage: 0.5 V max.
Minimum open impedance: 750 kΩ min.
Reset input
Max. counting speed (see note) 1 kHz: Minimum signal width of 0.5 ms
30 Hz: Minimum signal width of 16.7 ms ---
Minimum signal input width --- 1 s
Reset system External reset: Minimum signal width of 20 ms
Power-OFF reset: Minimum power OFF time of 500 ms
Ambient temperature Operating: –10°C to 55°C (with no condensation or icing)
Storage: –25°C to 65°C (with no condensation or icing)
Ambient humidity Operating: 25% to 85%
Item H7EC-NP
H7EC-NLP H7ET-NP
Time accuracy --- ±100 ppm (25°C)
Noise immunity Square-wave noise generated by noise simulator (pulse width: 100 ns/1 µs, 1-ns rise)
±500 V (Between count or timer input terminals/Between reset terminals)
Static immunity ±8 kV (malfunction)
Vibration resistance Malfunction:0.15-mm single amplitude at 10 to 55 Hz for 10 min each in 3 directions
Destruction:0.375-mm single amplitude at 10 to 55 Hz for 2 hrs each in 3 directions
Shock resistance Malfunction:200 m/s2 3 times each in 6 directions
Destruction:300 m/s2 3 times each in 6 directions
EMC (EMI) EN61326
Emission Enclosure: EN55011 Group 1 class B
(EMS) EN61326
Immunity ESD: EN61000-4-2: 4-kV contact discharge (level 2)
8-kV air discharge (level 3)
Immunity RF-interference from AM Radio Waves:
EN61000-4-3: 10 V/m (80 MHz to 1 GHz) (level 3)
Immunity RF-interference from Pulse-modulated Radio Waves:
EN61000-4-3: 10 V/m (900 MHz ± 5 MHz) (level 3)
Immunity Conducted Disturbance (see note):EN61000-4-6: 10 V (0.15 to 80 MHz) (level 3)
Immunity Burst (see note): EN61000-4-4: 2-kV I/O signal line (level 4)
Weight Approx. 20 g
H7E@-N@P
24
Connections
■Terminal Arrangement
■Connections
Power Supply and Battery Connections
Battery Connections
When designi ng a circ uit, keep the pow er wiring conne ction s shorter than 50
mm. Refer to the connection diagram above for the proper wiring polarity.
The life expectancy of a battery power supply can be calculated by
the following formula:
t = A/lc
Where,
t: Life expectancy of battery (h)
A: Battery capacity (mAh)
lc: H7E@-N@P current consumption (mA)
Example:
Battery life when using a 3-V lithium battery with a capacity of
1,200 mAh for the H7E@-N@P.
t = 1,200 [mAh]/20 × 10–3 [mA] = 60,000 hours (approx. 6.8 years)
The battery capacity varies depending on the type of battery used;
oxidized silver, mercury, or lithium battery.
Voltage Division of Power Supply Circuit
When necessary, the volta ge from the ba ttery may b e divided b y resi stances:
When doing so, however , ensure that the following equation balances:
E (V) × R2 / (R1 + R2) = 3 V
Allow a current high enough to flow through R1 so that the H7E@-
N@P receives sufficient current.
C is a film capacitor, of about 0.1 μF, and is intended to absorb noise
induced by the power lines.
Keep the wiring between the H7E@-N@P and R2 or C as short as
possible (within 50 mm).
Backup Circuit for Protection Against Power Failure
Use a diode (D) having a forward voltage as small as possible (0.1 V
max. at IF of 20 μA).
Determine the ratio of R1 to R2 in accordance with the forward volt-
age of the diode to be used. Be aware that when the power supplied
to the H7E@-N@P has dropped to less than the voltage of the
backup circuit, the battery will discharge.
To protect the circuit against a momentary power failure, an aluminum
electrolyte capacitor can be used in place of a battery, as shown below:
When a capacitor is used, its backup time can be calculated by the
following formula:
t = C (V1 – V2) / Ic
Where,
t: Backup time (s)
C: Capacitance (μF)
V1: Supply voltage before power failure (V)
V2: Minimum operating voltage of H7E@-N@P (V)
Ic:H7E@-N@P current consumption (μA)
Example:
Backup time by an aluminum electrolytic capacitor of 100 μF. (Mini-
mum operating voltage of H7E@-N@P is 2.6 V.)
t = 100 μF × (3–2.6 V)/20 μA = 100 × 0.40/20 = 2.0 seconds
Note that the above calculation provides an approximate value,
which varies depending on the environment under which the Counter
is used and also on the type of capacitors used. Provide some allow-
ance in selecting capacitors.
Keep the wiring between the H7E@-N@P and R2 or C as short as
possible (within 50 mm).
13 12 14
28 26 17 15
H7EC-N@P H7ET-NP
3-VDC external
power supply
Reset
inputCount
inputReset
inputTimer
input
3-VDC external
power supply
Bottom viewBottom view
omronH7EC COUNTS
13 12 14
28 26 17 15
omronH7ET COUNTS
Top viewTop view
RE
5 V 12 V 24 V
R12 kΩ9.1 kΩ33 kΩ
R23 kΩ3 kΩ4.7 kΩ
3-V battery
H7E@-N@P
H7E@-N@P
H7E@-N@P
3-V
bat-
tery Backup
circuit
H7E@-N@P
Backup
circuit
H7E@-N@P
25
Input Connections
Input Connection Contact Input
When the H7EC-NP is used, relay chattering may be counted. Use
the H7EC-NLP, one of the low-speed input models.
Solid State Input
Use a transistor for input that satisfies the following conditions:
Collector breakdown voltage ≥ 50 V
Leakage current < 1 µA
Use a diode (D) having a forward voltage as small as possible (0.1 V
max. at IF of 20 µA).
Operation
■Operating Modes
Reset input Count/Timer input
Or Or
H7E@-N@P
Relay Relay
Open-collector Transistor Input
Reset input Count/Timer input
H7E@-N@P
TTL or C-MOS IC Input
Reset input Count/Timer input
TTL or C-MOS IC TTL or C-MOS IC
H7E@-N@P
H7EC Total Counter H7ET Time Counter
Reset
Counting display values
Full-scale
Count input
Full-scale
Reset
Timer input
Timer display values
Incrementing Operation
(Up)
(Full-scale
−1)
Incrementing Operation
(Up)
Internal clock
timer value
(Full-scale
−0.1
H7E@-N@P
26
Dimensions
Note: All units are in millimeters unless otherwise indicated.
43
H7EC-N@P
H7ET-NP
DIP Terminal
DIP terminal x 8
Base
Eight, 0.8 dia.
17.3 max.
PCB Processing Dimensions
(Soldering Surface)
Section occupied
by the Counter
Note: Processing dimensions are
for 28-pin IC socket.
H7E@-N@P
27
Accessories (Order Separately) (Common)
■New H7E (Except for PCB-mounting Counter)
The New H7E models are supplied with a mounting brack et (Y92F-34) and nut. Additionally , the Y92F-75/-76/-77B Flush Mounting Adapters shown
here allow the New H7E models to be fitted to existing panel cutouts.
Degree of protection (front): IP40 (not waterproof)
The DIP switch of the H7E@-N can be operated in mounted condi-
tion. Vibration resistance and shock resistant are the same level as
the H7E@-N series.
•The minimum mounting interval is 30 mm.
Note: An interval of 40 mm is recommended for easier wiring.
•Do not allow the ambient temperature of the H7E@-N to exceed the
specifications (55°C).
•Mounting is possible onto panels with a thickness of 1 to 5 mm.
RST
47.6 2.4 18.6 4
26
(48 × No. of units
− 2.5)+1.0
0
22.2+0.5
0
22.2+0.5
0
45+0.5
0
30 min.
Y92F-35 Compact Flush Mounting Bracket Panel Cutout
Dense mounting Single mounting
28.8 24.2 22.2
45.2
48.2
53.8
4
24.8
48.8
RST
24.238 3850 22.2 27.5
48.2
52.5
60
45.2 4
31 24.2 22.2
45.2
48.2
63
72
4
26 26
45.3
63
Use mounting bracket supplied with the Counter Panel cutout
Use mounting bracket supplied with the Counter Panel Cutout
Y92F
-
75
Flush
Mounting
Adapter
for 26 × 45.3 Rectangular Cutout
Y92F-77B Flush Mounting Adapter
for 24.8 × 48.8 Rectangular Cutout
(Color: light gray)
Two, M4
Panel Cutout
(Color: light gray)
Use the Y92F-76 together with the Y92F-35 Compact
Flush Mounting Bracket.
Do not use the Flush Mounting Adapter supplied with the Counter.
(Color: light gray)
Two 4.5 dia. countersunk holes
Two 3.5 dia. mounting holes
Two, M3
Y92F-76 Flush Mounting Adapter
for 27.5 × 52.5 Rectangular Cutout
Note: The mounting panel
thickness should be
between 1 and 5 mm.
H7E@-N@P
28
When using the Wire-wrap Terminal, be sure to use the correct wires
and peripheral devices. (The correct wires, bits and sleeves are
shown in the table on the right.)
44.8
24
48 2548.5 17.1
22
Y92S-37 Wire-wrap Terminal (Set of Two Terminals) Wire-wrap terminal
(1 × 1 mm)
Wire Bit Sleeve Wrapped state
AWG22 2-A 2-B Normal
AWG24 1-A 1-B Normal
AWG26 3-A 1-B Normal
7.7
Y92S-36 Lithium Battery (3 V)
24.5 dia.
H7E@-N@P
29
Precautions (Common)
Refer to Safety Precautions for All Counters.
■New H7E (Except for PCB-mounting Counter)
!WARNING
This product has a built-in lithium battery. Do not short-circuit the +
and − terminals, charge, disassemble , deform, or expose the battery
to fire. The battery may explode (break), catch fire, or cause liquid
leakage.
Do not use any battery other than the specified one (Y92S-36). Using
another battery may cause liquid leakage or breakage, resulting in
malfunction or injury.
!CAUTION
If a voltage other than the rated one is applied, internal elements may
be damaged.
Do not use the Counter in the following places:
•Locations subject to direct sunlight.
•Locations subject to corrosive gases.
•Locations subject to dust.
Before Use
•An insulation sheet has been inserted to maintain the quality of t he
Totalizer in the event of a long period without use. Be sure to
remove this sheet before attempting to use the product.
Remove the insulation sheet and press the Reset Key on the front
panel of the Counter. (With the H7ER-N,-NV(-H),-NV1(-H), models,
“0” or “0.0” will be displayed after 1 s.)
•Switch settings on the Counter must be performed before mounting
it to a control panel.
•Do not use the Counter in the following locations:
•Locations subject to severe changes in temperature.
•Locations subject to condensation as the result of high humidity.
Mounting Precautions for Flush
Mounting
Although the operating section is water tight (confor ming to NEMA4,
IP66), rubber packing is provided to avoid water leakage through the
gap between the Counter and panel cutout. Unless this rubber pack-
ing is tightly squeezed on, water may permeate inside the panel.
Therefore, be sure to tighten the screws for fixing the Y92F-34 Flush
Mounting Bracket. (Excessive tightening may also defor m the r ubber
packing.)
Screw for the Flush Mounting Bracket
Reset Input and Count/Timer Input
•The H7E operates using its built-in Battery. If the H7E is connected
to a device that has +V and OUT terminals that are connected w ith
a diode as shown in the circuit diagram, the circuit indicated by the
arrow 1 or 2 will be formed when the device is turned OFF. As a
result, the H7E may be reset or count by one. It is recommended
that such devices not be connected to the H7E.
•If an excessive voltage is applied to the count/timer input or reset
input terminals, the internal elements may be damaged.
Ensure that the following voltages are not exceeded:
•PNP/NPN universal voltage input model: 30 VDC
•AC/DC voltage input model:
At count/timer input: 240 VAC (peak voltage: 338V)
240 VDC
At reset input: No voltage can be applied. (No-voltage
input)
•No-voltage input model: No voltage can be applied.
•Avoid wiring close to high-tension or large-current lines.
•Do not remove the outer case when voltage is being applied to the
power supply terminals or the input terminals.
•The input for the H7E@-NFV-@ is a high-impedance circuit and so
influence from an induced voltage may result in malfunction. There-
fore, when the inpu t signal wiring is longer than 10 m (line capaci-
tance of 120 pF/m, at room temperature), it is recommended that a
CR filter or a bleeder resistor is connected.
Reset Key
Insulation Sheet
Y92F-34 Adapter
Panel
The wider side must
face the panel.
H7E@-N
Devices
Internal
circuit
Count/Timer
input or reset
input
H7E@-N@P
30
Count Input, Timer Input or Reset Input
to More than One H7E Counter at a
Time
•PNP/NPN Universal DC Voltage Input
Note: H (Reset ON) level must be 4.5 V minimum.
•No-voltage Input
Note: 1. The leakage current of the transistor used for input must be
less than 1 µA.
2. The forw ard voltage of the diode must be as low as possib le
(i.e., 0.1 V maximum with an IF of 20 µA) so that the v oltage
between terminals 3 and 4 will be 0.5 V when the reset input
is ON.
Input and Power Supply
No-voltage Input Models
•Do not impose voltage on the Counter if the Counter is a model that
operates with no-voltage input, otherwise the inter nal circuit of the
Counter may be damaged.
Do not connect any single input signal in parallel to Counter models
operating with no-voltage input and those operating with voltage
input, otherwise the Counters may malfunction.
•When connecting a sensor to the Counter that operates with no-
voltage input, make sure that the sensor has open collector output.
•When connecting an open collector input from a transistor to the
Counter that operates with no-voltage input, make sure that the
leakage current of the transistor is 1 µA maximum.
No-v oltage Input and PNP/NPN Universal DC
Voltage Input Models
•The operation of the Counter may be affected if the capacitance of
input lines exceeds 500 pF (about 10 m, with parallel wires of 2 x
2 mm).
Keep all wires as shor t as possible. When using shielded wire, line
capacitance may occur.
AC/DC Multi-voltage Input Models
•When connecting count/timer input from an SSR to the Counter
that operates with AC/DC voltage input, use OMRON’s G3TA-IA/ID
SSR (for DC) whose leakage current is 0.1 mA max. or connect a
bleeder resistor in parallel to the input circuit of the Counter.
Backlight Power Supply
•To reduce variation in the brightness of the backlight when using
more than one H7E with a backlight, use the same pow er supply f or
all the backlights.
•When connecting the DC power supply for the backlights, be sure
to connect the polarities correctly.
Input Verification with the H7ET Time
Counter
(When the time range is not set to 0s to
999h59min59s)
The decimal point of the LCD blinks every other second while an
input signal is being applied. If the decimal point is not blinking, the
input signal is not being received correctly. Check the input signal
connections.
Unit Label for Time Counter and
Tachometer
A unit label has been packed with the Counter. Use in accordance
with the application.
Battery Replacement
Remove the wir ing when replacing the Batter y. Do n ot come in con-
tact with any item to which high voltage is being applied. Doing so
may result in electric shock.
Before changing the Battery, the person should ensure that they are
not carrying any static electric charge.
Procedure for replacing the Battery (refer to the diagrams below):
1. Using the tool, pry open the lift-tab on the case. (1)
2. Pull the body out of its outer case. (2)
3. Lift the Battery up by the edge and remove it. (3)
When removing the Batter y, do not come in contact with the dis-
play area or any internal parts.
4. Wipe the back of the new Battery before inserting it.
5. Ensure that the + and – terminals are correctly oriented.
6. After replacing the Battery, re-insert the body into its case. (4)
Check that the case is securely held in by the lift-tab.
or
or
H = 4.7 (kΩ)/N + V
4.7 (kΩ)/N + R
or
12 34
Sensor
or
or
or
Leakage current:
0.1 mA max.
*Bleeder resistor
The voltage between terminals 1 and 2 must be
1.5 V maximum when the SSR is OFF.
H7E@-N@P
31
7. Press the Reset Key before use (not necessary for H7ER-N,-NV,-
NV1). (5) EN/IEC Standards
The count or timer in put, reset input, and backlight power supply ter-
minals of the no-voltage input or PNP/NPN universal DC voltage
input models (H7E@-N,-N1, H7E@-NV(-H),-NV1(-H)) are not iso-
lated.
A SELV power supply conforming to Appendix H of IEC61010-1
should be used for the count or timer input, reset input and backlight
power supply terminals. A SELV power supply is a power supply for
which the input and output have double or reinforced insulation, and
for which the output voltage is 30 Vrms with 42.4 V peak or 60 VDC
max. (Only the H7E@-NV@-H has a backlight.)
The terminals for count or timer input and reset input for AC/DC
multi-voltage input models have basic insulation.
Connect the reset input terminals to a device that does not have
exposed current-carrying parts and has basic insulation for 240 VAC .
Others
If the indicator keeps flickering or is OFF, the inter nal battery may be
close to the end of its service life. In such a case, it is suggested that
the battery be replaced.
■PCB-mounting Counter
Power Supply
•Use the power supply within the applicable range indicated by the
following waveform, while consider ing the r ipple and voltage fluctu-
ations of the circuit power source.
•The H7E@-N@P changes its mode as shown below depending on
the applied supply voltage.
Battery Replacement
To prevent unwanted reset when replacing the battery, connect the
new battery before disconnecting the old one. Otherwise, the voltage
supplied to the counter circuit drops, causing the present count value
to reset.
When designing the circuit board, providing two extra terminals for
batter y connection will make the switch must simpler. See the sche-
matic diagram below:
Wiring polarity must be carefully observed, in order to prevent per-
manent damage to the Counters. Exercise caution when inserting
the Counter in the socket, to prevent reversed polarity.
(2)
(1)
(1)
(3)
(4)
(5)
Tool
Battery
3.6 V
2.6 V
Voltage
(V)
3.6
3
0
LCD
Beyond supply voltage
Looks darker
Looks normal
Flashes
No display No operation
Normal operation
Normal operation
Approx. 2.6
Approx. 2.2
Internal circuit
operation
Applicable
range
Battery life
guideline
H7E@-N@P
H7E@-N@P
32
Inputs
Do not route the wiring of the count, timer , or reset inputs in the vicin-
ity of, or in parallel to the wiring of high-voltage or inductive load cir-
cuits (such as motors and relays). Also, keep the wiri ng as short as
possible.
Be careful not to apply voltages e xceeding the f ollowing values to the
count, timer, or reset terminals, otherwise the inter nal circuit may be
damaged.
No-voltage input: 3 VDC
General Information
Finish soldering under the condit ions below.
Solder the terminals within 5 seconds, at a solder iron tip tempera-
ture of 250°C ± 10°C w hen using lead solder, and within 3 seconds,
at a solder iron tip temperature of 350°C ± 10°C when using lead-
free solder.
Since the Counter is not flux-tight, do not use flux when soldering.
Avoid automatic and dip solderin g. Manually solder the Counter onto
a PC board, and avoid cleaning as much as possible.
When mounting the Counter on a PC board with compone nts which
consume higher current than the H7E@-N@P, observe the following
precautions.
1. Minimize the wiring (less than 50 mm) from the H7E@-N@P to the
power supply section.
2. Avoid placing the H7E@-N@P power, timer , counter, or reset input
circuit in parallel with circuits that consume large currents, partic-
ularly on the positive side.
When using the Counter in an environment where the Counter is
subject to frequent occurrences of vibration or shock, or when
mounting the Counter facing downwards or sideways, it is suggested
that the Counter be directly soldered to a PCB instead of using sock-
ets.
To Conform to EN/IEC Standards
Input ter minals have no insulation from power supply terminals. The
power supply terminals must be supplied from a SELV source in
accordance with IEC61010-1 Annex H. SELV (separated extra-low
voltage) source is a power supply having double or reinforced insula-
tion between the primar y and the secondary circuit and having out-
put voltage of 30 V rms max. and 42.4 V peak max. or 60 VDC max.
Cleaning
To prevent damage, the exter ior of the Counter must not be exposed
to organic solvents (3.g. paint thinner or benzine), strong alkalis, or
strong acids.
Others
•No user-serviceable parts.
•Return to OMRON for all repairs.
H7E@-N@PPower supply Power supply
H7E@-N@P
H7E@-N@P
PC Board (Bad Example) PC Board (Good Example)
Placed far away from
the power supply.
Large-current-
consuming
components
Wired in parallel
with large-
current-carrying
components.
Bypass
capacitor Bypass
capacitor
Large-current-
consuming
components
In the interest of product improvement, specifications are subject to change without notice.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Read and Understand This Catalog
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or
comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specified)
from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR
FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS
DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR COMMERCIAL LOSS
IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT
LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS
OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT
SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's
application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the
products. This information by itself is not sufficient for a complete determination of the suitability of the products in combination with the end product,
machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible
uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:
Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.
Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles,
safety equipment, and installations subject to separate industry or government regulations.
Systems, machines, and equipment that could present a risk to life or property.
Please know and observe all prohibitions of use applicable to the products.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE
SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE PROPERLY RATED AND
INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
PROGRAMMABLE PRODUCTS
OMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
Disclaimers
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons.
It is our practice to change model numbers when published ratings or features are changed, or when significant construction changes are made.
However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or
establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual
specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
PERFORMANCE DATA
Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the
result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON
Warranty and Limitations of Liability.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.
2013.1
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2013 All Right Reserved.
