เครื่องนับจำนวนแบบดิจิตอล Digital Counter
รุ่น H7CN
คุณลักษณะ
The H7CN digital counters are a single pre-set counter with a four digit LED display. Various models are available and options such as up, down and reversible counting. They can be operated on a wide range of ac or dc voltages. The count speed of up to 5K counts per second make them extremely versatile and suitable for many possible applications. The units are a standard 48x48mm DIN size but panel mounting adaptors, sockets and accessories are available separately.
- In addition to Up and Down models, a reversible (Up-Down) counter is also available
- Maximum counting speed of 5,000 cps, never before attained by a small-size preset counter
- Power supply freely selectable within a range of 100 to 240 VAC. Also, power supply for the DC-operated models is selectable within a range of 12 to 48 V
- Models with memory backup function against power failure available
- 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)
คุณสมบัติ
| MODEL | H7CN-N | H7CN-NS | |
|---|---|---|---|
| Classification | Single preset counter | ||
| Mounting | Panel, track or surface | ||
| External connections | 8-pin round sockets or 11-pin round sockets (-M types) | ||
| Output modes | Sustained output until reset | ||
| Input modes | UP (H7CN-X), DOWN (H7CN-Y), reversible with command input (H7CN-A), reversible with individual input (H7CN-B) | UP (H7CN-X), DOWN (H7CN-Y) | |
| Reset system |
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| Sensor power supply | Not provided | ||
| Input signal | Count and reset | ||
| Input method |
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| Control outputs |
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Open collector transistor 100 mA, 30 VDC max | |
| Displays | 7-segment LED count value display, 8 mm (0.3 in) high characters, and LED indicators for count up and reset. | ||
| Digits | 4 digits | ||
| Memory backup | H7CN-M models have a memory protection circuit that protects against momentary power failures lasting up to 10 minutes. An optional Y92S-20 lithium 3 V battery can provide up to 5 years of memory retention. | ||
| Supply voltage | AC | 100 to 240 VAC, 50/60 Hz | |
| DC | 12 to 48 VDC (20% max. ripple) | ||
| Operating voltage range | 85 to 110% of rated voltage | ||
| Power consumption |
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| Max. counting speeds (CP1, CP2) | 30 cps with contact and solid-state inputs; 5,000 cps with solid-state inputs only | ||
| Minimum pulse widths |
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| Approvals | UL / CSA | ||
| Ambient operating temperature | -10° to 55°C (14° to 131°F) | ||
| Storage temperature | 25° to 65°C (-13° to 149°F) | ||
| Ambient operating humidity | 35 to 85% RH | ||
| Insulation resistance | 100 mΩ minimum at 500 VDC | ||
| Dielectric strength | 2,000 VAC, 50/60 Hz for 1 minute between current-carrying terminal and exposed metal parts, between power supply circuit and control output circuit | ||
| Vibration | Mechanical durability | 10 to 55 Hz, 0.75 mm (0.03 in) double amplitude | |
| Malfunction durability | 10 to 55Hz, 0.5 mm (0.02 in) double amplitude | ||
| Shock | Mechanical durability | Approx. 30 G | |
| Malfunction durability | Approx. 10 G | ||
| Service life | Mechanical | 10 million operations minimum under no load at 1,800 operations/hour switching frequency | |
| Electrical | 100,000 operations minimum under resistive load at 3 A, 250 VAC (p.f. = 1) | ||
| Weight | 150 g (5.3 oz.) | ||
