LED blinkingLED lit and steadyLEDs
off
Blinking:GreenPower supply on the unit OKGreenNo
power Drive in an alarm state(POWER)(POWER)
Blinking for one second:
Drive selected on the control
panel when multiple drives are
connected to the same panel
bus.
Active fault in the drive. To reset
the fault, switch off the drive
power.
Red
(FAULT)
Active fault in the drive. To reset
the fault, press RESET from the
control panel or switch off the
drive power.
Red
(FAULT)
Control unit
￭ Replacing the memory unit of ZCU-12
After replacing a control unit, you can retain the existing parameter settings by transferring
the memory unit from the defective control unit to the new control unit. After power-up,
the drive will scan the memory unit. This can take several minutes.
WARNING!
Do not remove or insert the memory unit when the control unit is powered.
1.
Stop the drive and do the steps in section Electrical safety precautions (page 15)
before you start the work.
2. Pull the clip at the side of the memory up.
3. Take the unit off.
156 Maintenance
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