GEFRAN-SIEI ARTDrive Vector V2 400Vac Series, Instruction Manual

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354 • Chapter 8 Appendix ARTDrive V2 series - Instruction Manual
8.2.5 Hints on How to Correct Some Regulation Alarms Events
External fault
External failure, acquired from a digital input or communication channel. If using
a terminal input:
The signal on the terminal is missing. Make sure to tie common point of digital
inputs (term 16) with power supply reference point (term. 18 if using internal
power supply).
Failure supply
Switch off voltage before removing terminal strips. In most cases the cause is in
the external wiring. Pull out the plug-in terminal strips of the regulator card and
acknowledge the Alarm. If no other faults are indicated, check your wiring for a
short-circuit, in some cases with the cable shielding.
If this has not corrected the fault, contact your service representative.
Heatsink OT
- For 230...480Vac models 22kW and higher
- For 575Vac models 25Hp and higher
Temperature of the heatsink too high. Check for failure of a device fan, ambient
temperature too high, dirty, heatsink, or cooling opening obstructed.
Heatsink S OT
Ambient temperature too high.
Failure of device fan, dirty heatsink, or cooling opening obstructed.
Intake Air S OT
- For 230...480Vac models 22kW and higher
- For 575Vac models 25Hp and higher
Temperature of the cooling air too high.
IGBT desat flt
Internal Overcurrent failure of IGBT power section
Switch off device and restart . If you are unsuccessful, contact your service
representative.
Inst Overcurrent
Overcurrent in the motor circuit.
Short-circuit or ground fault at the output of the drive. Remove power to the
main circuit, wait for the prescribed time to discharge DC link and check power
connections.
Reapply power and attempt a restart. If still unsuccessful, contact your service
representative.
Module OT
- For 230...480Vac models from 0.75 to 15 kW
- For 575Vac models from 2 to 20 HP
Temperature of the IGBT module too high.
Failure of device fan.