Rockwell Automation Publication 750-PM101B-EN-P - April 2022 115
Chapter 4 Troubleshooting
Configurable LCL Filter
Capacitor Failure Response
Review the Attention statement that follows if you intend to configure the Line
Side Converter to produce an alarm instead of a fault when the LCL Capacitor
Failure event occurs.
Configurable LCL Filter
Capacitor Over Resonance
Response
Review the Attention statement that follows if you intend to configure the line
side converter to produce an alarm instead of a fault when the LCL Capacitor
Over Resonance event occurs.
ATTENTION: You must read the following information before you can enable
the Line Side Converter to produce an alarm instead of a fault when the
LCL Filter Capacitor Failure event occurs.
Operating the product (drive or bus supply) during the LCL Capacitor Failure
event may damage the LCL filter. This damage may lead to catastrophic
product failure and collateral damages.
It is your responsibility to configure drive parameters, understand the
causes and consequences of LCL capacitor failure, and meet safety
requirements in accordance with all applicable codes and standards. If
enabling the Line Side Converter to produce an alarm instead of a fault
when the LCL Capacitor Failure event occurs is desired, you must certify the
safety of the application. To acknowledge that you have read this ‘Attention’
and properly certified the application, set bit 6 ‘CapFailAlrm’ of parameter
13:40 [Conv Options Cfg]. This action removes Fault 24, ‘CapFailureCfg’. It
allows parameter 0:452 [LCLCapFailActn] to be set to 0 ‘Alarm’, enabling an
alarm instead of a fault.
ATTENTION: You must read the following information before you can enable
the Line Side Converter to produce an alarm instead of a fault when the
LCL Filter Capacitor Over Resonance event occurs.
Operating the product (drive or bus supply) during the LCL Capacitor Over
Resonance event may damage the LCL filter. This damage may lead to
catastrophic product failure and collateral damages.
It is your responsibility to configure drive parameters, understand the
causes and consequences of LCL capacitor over resonance, and meet
safety requirements in accordance with all applicable codes and standards.
If enabling the Line Side Converter to produce an alarm instead of a fault
when the LCL Capacitor Over Resonance event occurs is desired, you must
certify the safety of the application. To acknowledge that you have read this
‘Attention’ and properly certified the application, set bit 5 ‘CapORsncAlrm’ of
parameter 13:40 [Conv Options Cfg]. This action removes Fault 56,
‘CapOvrRsncCfg’. It allows parameter 0:453 [CapOvrRsncActn] to be set to 0
‘Alarm’, enabling an alarm instead of a fault.
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