Rockwell Automation GMLC Reference Manual - Manual (Page 604)

Publication GMLC-5.2 - November 1999
567
System Smart Power I Limit Fault 1394
The Programmable Integrated Controller (PIC) processor, in the Smart
Power system module, monitors the DC link current to protect the DC bus
pins when maximum power is being consumed in either normal operation
or a common bus mode. System_smrt_pwr_i_limit_fault_1394 is a
logical (Boolean) variable, with a value of:
• 1 (True) if either the 64 amperes instantaneous current limit or the 34
amperes Root Mean Square (RMS) continuous current limit is
exceeded by 5%, or
• 0 (False) if not.
When System_smrt_pwr_i_limit_fault_1394 = 1,
System_module_hard_fault_1394 = 1, and Drive_hard_fault_1394 = 1.
Clearing this fault clears Drive_hard_fault_1394.
When System_smrt_pwr_i_limit_fault_1394 = 1,
System_module_fault_status_1394 = 9.
System Smart Power Pre-Charge Fault 1394
System_smrt_pwr_pre-charge_fault_1394 is a logical (Boolean) variable,
with a value of:
• 1 (True) if the Smart Power system module DC bus fails to reach 458
Volts after 2 or 3 phases are present, or
• 0 (False) if not.
When System_smrt_pwr_pre-charge_fault_1394 = 1,
System_module_hard_fault_1394 = 1, and Drive_hard_fault_1394 = 1.
Clearing this fault clears Drive_hard_fault_1394.
!
ATTENTION: A hard fault is a serious condition! Be
certain to correct the underlying cause of this fault,
before clearing the fault and reactivating the drive.