How to troubleshoot a Nice 1551 that won't power on?
If the Nice Controller operator will not power on and the power LED is OFF: * Check that power to the circuit board is turned ON. * Check the terminal block wiring for loose or broken wires. * If voltage measures OK, check the terminal block. * Check the fuses (may be both AC and DC fuses in installation).
What to do if Nice 1551 Controller LED is blinking and the buzzer sounds?
If your Nice Controller experiences a hard shutdown, indicated by a blinking LED and a buzzer sounding for 5 minutes after two consecutive obstructions, clear any obstructions from the gate's path. Then, press the RESET button or the hard reset button to clear the error.
Why does my Nice Controller gate open a little then stop and reverse?
If your Nice gate opens a short distance, then stops and reverses, check the external entrapment sensors on the gate controller. You may also need to adjust the Force Settings.
What to do if Nice 1551 Controller gate opens but won't close?
If your Nice Controller gate opens but will not close, check the input LEDs for any that are ON, as this indicates a problem with a keying device. Also, inspect the external entrapment devices; any activated devices will hold the gate open, suggesting a possible problem with the device. Finally, check the loop detectors; activated loop detectors can also keep the gate open, indicating a possible problem with the loop detector or ground loop.
Why does my Nice 1551 Controller gate open by itself?
If your Nice Controller gate opens by itself, check the accessory inputs and clear them as necessary.
What to do if Nice 1551 battery backup won't open gate during power outage?
If the Nice Controller battery backup system will not open the gate during an AC power outage: * Check if the backup system is set to open the gate automatically or requires an input to open. * Check the batteries for proper voltage and replace them if necessary.
Why does my Nice Controller show Dynamic M1 error?
If the actuator connected to Motor 1 on your Nice Controller has a brief current spike and tripped the Type A sensor, check for obstructions in the gate path or degraded gate hardware.
General| Operating temperature | -20°C to +50°C |
|---|---|
| Protection class | IP30 |
| Dimensions | 150 x 140 x 50 mm |
| Input Voltage | 24 V DC |
| Output Voltage | 24 V DC |
| Maximum Current | 0.5 A |
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