Function and Application
The NJJ7-M counter relay is suitable for control circuits with an AC frequency of 50Hz, a rated control power supply voltage up to 240V, and a DC rated control power supply voltage up to 240V, as a counting or counting control component.
Detailed Parameters
| Parameter Category | Parameter Item | Parameter Value |
|---|
| 3 Main Parameters and Technical Performance | Rated Control Circuit Power Supply Voltage | AC/DC100V~240V, 50Hz, DC24V |
| Allowed Fluctuation Range of Rated Control Circuit Power Supply Voltage | 85%~110% |
| Electrical Life | 1×10⁵ |
| Mechanical Life | 1×10⁵ |
| Output Method | 1 set of changeover contacts, collector open output (30VDC 100mA max), batch output |
| Contact Capacity | Ue/le: AC-15 220V/0.75A, 380V/0.47A; DC-13 220V/0.27A; Ith: 5A |
| Counting Digits | CR mode: 4-digit counter relay (4 red LEDs for count value, 4 green LEDs for preset value); CT mode: 8-digit reversible total counter (green LEDs for low 4 digits, red LEDs for high 4 digits) |
| Counting Speed | 1 time/second, 30 times/second, 1000 times/second can be set |
| Counting Mode | Add, Subtract Reversible A, Reversible B, Reversible C |
| Input Signal | Switch input, sensor input (NPN/PNP type can be set) |
| Value Setting | Settable range 0.01~9.99 |
| Output Mode | N, F, C, R, K, P, Q, A |
| Output Time | Settable output time 0.01s~9.99s (when output mode is C, R, K, P, Q, A) |
| Environmental Temperature | -5℃~+40℃ |
| Power Consumption | ≤3VA |
| Installation Method | Panel-mounted |
| Power Failure Memory | More than 10 years (settable) |
