1. Large display with 8.6-mm character height.

2. Light-gray cases available

3. PNP/NPN universal DC voltage input types now available.

4. Battery is replaceable for Totalizer reuse and conservation of the environment.

5. Key-protect switch to prevent faulty reset key operation.

6. Short body, all models have a depth of 48.5 mm.

Conforms to EN60950-1 2006 A2 2013

Allowing use in residential, commercial and light- and heavy-industry environments.

Eight-digits, counting range 0 to 99999999

Model Number Structure

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Model Number Legend

Note: Some configurations are not available.

1. Count Input

None: No-voltage input

V: PNP/NPN universal DC voltage input

FV: AC/DC multi-voltage input

Specifications

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General

Item	H7EC-NV-@ H7EC-NV-@H	H7EC-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 input	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
Case color	Light gray
Approved standard	Conforms to EN61010-1/IEC61010-1 (Pollution degree2/overvoltage category III)

Ratings

Item	Item H7EC-NV-@ H7EC-NV-@H	H7EC-NFV-@	H7EC-N-@
Supply voltage	Only for backlight 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)
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 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%

Connections

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Terminal

Bottom view: View of the Total Counter rotated horizontally 180°

PNP/NPN Universal DC Voltage Input Model	No-voltage Input Model
1. Contact Input (Input by a Relay or Switch Contact)	1. Contact Input (Input by a Relay or Switch Contact)
	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 G3TA-IA/ID be used as the SSR.
2. Solid-state Input	2. Solid-state Input (Open Collector Input of an NPN Transistor)
	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
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
AC/DC Multi-voltage Input Model
Note:  Select input transistors according to the following: Dielectric strength of the collector ≥ 50 V Leakage current < 1 μA

Operation

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Operating Modes
H7EC Total Counter
Incrementing Operation
(Up)

Nomenclature

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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.

Dimensions

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Note: All units are in millimeters unless otherwise indicated.

Note: A Compact Flush Mounting Bracket can also be used. Refer to Accessories for details.

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 aterproofing 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.