Alarms And Troubleshooting; Alarms - gefran ADL300 Installations

9 Alarms and Troubleshooting

To reset Alarms see chapter 8.3.11 of ADL300 QS manual.
In the following table, the Code is visible only from serial line

9.1 Alarms

Code Error message shown
on the display [on the
integrated keypad]
0 No alarm Condition: No alarm present
Condition: DC link overvoltage alarm due to energy recovered from the motor.
The voltage arriving at the drive power section is too high compared to the maximum threshold relating to the PAR 560 Mains voltage parameter setting.
Solution:
1 Overvoltage [OV]
- Check the status of the breaking resistors and check that no interruptions in the cabling.
- Always use a braking resistor to dissipate the energy recuperation, to be connected to the specific terminals.
resistor (optional) on ADL300 QS manual (code 1S9QSEN).
Condition: DC link undervoltage alarm.
The voltage arriving at the drive power section is too low compared to the minimum threshold relating to the 560 Mains voltage parameter setting due to:.
- the mains voltage being too low or overextended voltage drops.
2 Undervoltage [UV]
- poor cable connections (e.g. loose contactor terminals, inductance, filter, etc. ).
Solution: Check the connections and mains voltage
Condition: Ground short circuit alarm
Solution:
3 Ground fault [GNDF]
- Check drive and motor wiring.
- Check that the motor is not grounded.
Condition: Instantaneous overcurrent protection intervention alarm.
This may be due to the incorrect setting of current regulator parameters or a short circuit between phases or ground fault on the drive output.
4 Overcurrent [OC]
Solution:
- Check the current regulator parameters (menu 17)
- Check wiring towards the motor
Condition: Instantaneous overcurrent in the IGBT bridge alarm.
Solution:
5 Desaturation [DES]
- Switch the drive off and then switch it on again.
- Check the condition of the braking resistor isolation. Make sure there are no earth leakages.
- If the alarm persists, contact the technical service centre.
Condition: The number of attempted automatic restarts after the Undervoltage alarm has exceeded the set PAR 4650 UVRep attempts value in the PAR
4652 UVRep delay time.
6 MultiUndervolt [MUV]
Solution: Too many Undervoltage alarms.
Adopt the proposed solutions for the Undervoltage alarm.
Condition: 2 attempted automatic restarts after the Overcurrent alarm within 30 seconds. If more than 30 seconds pass after the Overcurrent alarm was
generated, the attempt counter is reset.
7 MultiOvercurr [MOC]
Solution: Too many Overcurrent alarms. Adopt the proposed solutions for the Overcurrent alarm.
8 MultiDesat [MDES] Condition: 2 attempted at automatic restarts after the Desaturation alarm within 30 seconds. If more than 30 seconds pass after the Desaturation alarm
ADL300 - Fast installations and commissioning
Sub-code Description
See section "7.1.9 Connection of braking
Pag. 37 of 52