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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

ItemPreset CounterTotalizing Counter
Insulation resistance100 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 strength2,000 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 immunityMalfunction: 8 kV
Vibration resistanceDestruction: 10 to 55 Hz, 0.75-mm single amplitude
Malfunction: 10 to 55 Hz, 0.5-mm single amplitude
Shock resistanceDestruction: 300 m/s2 (approx. 30G)
Malfunction: 100 m/s2 (approx. 10G)
Ambient temperatureOperating: -10°C to 55°C (with no icing)
Storage: -25°C to 65°C (with no icing)
Ambient humidity35% to 85%
Life expectancyMechanical: 10 million operations min.
Electrical: 100,000 operations min.
(3 A at 250 VAC, resistive load)
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WeightApprox. 110 g

Applicable Standards

Approved safety standards UL508/CSA C22.2 No. 14
EN 61010-1 (IEC 61010-1): Pollution degree 2/overvoltage category II
EMC (EMI) EN61326
Emission Enclosure: EN 55011 Group 1 class A
Emission AC mains: EN 55011 Group 1 class A
(EMS) EN61326
Immunity ESD: EN 61000-4-2
Immunity RF-interference: EN 61000-4-3
Immunity Conducted Disturbance: EN 61000-4-6
Immunity Burst: EN 61000-4-4
Immunity Surge: EN 61000-4-5
Immunity Voltage Dip/Interruption: EN 61000-4-11