6
Operation
Faults at the power supply module
Operating Instructions – MOVIDRIVE
®
modular
164
Subfault: 49.9
Description: DC link overcurrent
Response: Remote – critical fault
Cause Measure
DC link current too high in motor or generator mode. – Motoring operation: load too high / check project planning.
– Regenerative operation: Braking resistance too low or short
circuit in braking resistor.
Subfault: 49.10
Description: Brake chopper short circuit
Response: Remote – critical fault
Cause Measure
A failed brake chopper was detected in the device. For units
with half-controlled bridge, the thyristors are inhibited.
– Check brake chopper circuit connections. Switch the power
off and on again.
– If the fault is still present, replace the device. Contact the
SEW-EURODRIVE Service.
Subfault: 49.11
Description: Collector emitter voltage monitoring
Response: Remote – critical fault
Cause Measure
The voltage supply for the brake chopper is defective. Check the connection of the braking resistor.
UCE monitoring of brake chopper trips Switch the power off and on again. Contact the
SEW‑EURODRIVE Service if the error is still present.
Short circuit in braking resistor. Check braking resistor and supply cable.
Too much regenerative power. Check the project planning for the axis system.
Subfault: 49.12
Description: Temperature sensor (internal) defective
Response: Remote – critical fault
Cause Measure
Temperature sensor does not respond (e.g. wire break) Contact the SEW-EURODRIVE Service.
Subfault: 49.13
Description: Overtemperature 105%
Response: Remote – critical fault
Cause Measure
Maximum permitted heat sink temperature exceeded Check the project planning and installation of the axis system.
Contact the SEW-EURODRIVE Service.
Subfault: 49.14
Description: Temperature evaluation defective
Response: Remote – critical fault
Cause Measure
Failed to transfer temperature signals Contact the SEW-EURODRIVE Service.
Subfault: 49.15
Description: Capacity utilization 105%
Response: Remote – critical fault
Cause Measure
An electromechanical utilization of > 105% was detected by the
I2xT model.
– Check the project planning and installation of the axis sys-
tem.
– Contact the SEW-EURODRIVE Service.
Subfault: 49.16
Description: Braking resistor temperature monitoring
Response: Remote – critical fault
Cause Measure
– Monitoring of the external braking resistor has tripped.
– The temperature of the externally connected braking resistor
is too high.
Check the project planning for the axis system.
Incorrect wiring. Check braking resistor installation.
24748536/EN – 11/2017
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