If the fault does not clear automatically, power the M3645 down and check all
incoming AC and DC fuses or overcurrent devices.
Ensure that DC bus voltage is present at the terminals of the regen, at the
expected voltage. Check the polarity of the DC bus connections. If the
polarity is incorrect the regen will not be able to complete precharge.
If the fault cannot be cleared, or occurs frequently, the unit may be damaged.
Contact Bonitron for assistance.
5.3.15. FREQUENCY DETECT FAILURE
Power the M3645 down and check all incoming AC and DC fuses or
overcurrent devices.
5.3.16. TECHNICAL HELP – BEFORE YOU CONTACT US
If technical help is required, please have the following information available
when contacting Bonitron (615) 244-2825, or email to info@bonitron.com:
Model number of unit
Serial number of unit
Name of original equipment supplier if available
Record the line to line voltage on all 3 phases
Record the DC bus voltage immediately after the AC voltage
Brief description of the application
Drive and motor HP or kW
KVA rating of power source
Source configuration Wye/Delta and grounding
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