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H7CN

Solid-state Counter

H7CN

All Required Counter Functions Incorporated in a Compact DIN-sized (48 × 48) Housing

Ratings

Supply voltage 24, 100 to 240 VAC 50/60 Hz
12 to 48 VDC (contains 20% ripple max.) *1
Operating voltage range 85% to 110% of rated voltage
Power consumption *2 Approx. 12 VA/2.5 W (at 240 VAC, 50Hz)
Approx. 2.5 W (at 48 VDC)
Count and reset input Impedance by short-circuiting contacts: 1 kΩ max.
Residual voltage: 2 V max.
Impedance by opening contacts: 100 kΩ min.
Max. counting speeds of count input 30 cps (contact and transistor inputs)
Minimum pulse width: 16.7 ms (ON/OFF ratio: 1:1)
5.000 cps (transistor inputs)
Minimum pulse width: 0.1 ms (ON/OFF ratio: 1:1)
Reset system Power-OFF reset
Reset time: 0.5 s
Reset time following power application 0.05 s
External reset & manual reset
Reset time: 0.02 s
Reset time following signal application: 0.05 s
Control output Contact (SPDT) output: 3 A, 250 VAC, cosϕ = 1 (resistive load)
Transistor (open collector) output: 30 VDC MAX. 100 mA max.
Case color Light gray (Munsell 5Y7/1)

*1. The memory backup function is not available for this DC supply voltage range.
*2. On power application, an inrush current of approximately 10 times the normal current flows through the Counter.

Characteristics

Item Preset Counter Totalizing Counter
Insulation resistance 100 MΩ min. (at 500 VDC) (between current-
carrying terminal and exposed non-current-
carrying metal parts, and between non-
continuous contacts)
100 MΩ min. (at 500 VDC) (between current-
carrying terminal and exposed non-current-
carrying metal parts)
Dielectric strength 2,000 VAC, 50/60 Hz for 1 min (between
current-carrying terminal and exposed non-
current carrying metal parts and between
non-continuous contacts)
2,000 VAC, 50/60 Hz for 1 min (between
current-carrying terminal and exposed non-
current carrying metal parts)
Impulse withstand
voltage
6 kV (between power terminals)
6 kV (between current-carrying terminal and exposed non-current-carrying metal parts)
Noise immunity ±2 kV (between power terminals),
±500 V (between input terminals),
square-wave noise by noise simulator
Static immunity Malfunction: 8 kV
Vibration resistance Destruction: 10 to 55 Hz, 0.75-mm single amplitude
Malfunction: 10 to 55 Hz, 0.5-mm single amplitude
Shock resistance Destruction: 300 m/s2 (approx. 30G)
Malfunction: 100 m/s2 (approx. 10G)
Ambient temperature Operating: -10°C to 55°C (with no icing)
Storage: -25°C to 65°C (with no icing)
Ambient humidity 35% to 85%
Life expectancy Mechanical: 10 million operations min.
Electrical: 100,000 operations min.
(3 A at 250 VAC, resistive load)
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Approved standards UL508, CSA C22.2 No.14
Weight Approx. 110 g