Rockwell Automation 7000L PowerFlex Medium Voltage AC Drive (C Frame) - Classic Control - Manual (Page 498)

7-14 Troubleshooting
7000L-UM300I-EN-P – June 2013 7000 “C” Frame
FAULT
MESSAGE
FAULT
CODE
DESCRIPTION RECOMMENDED ACTIONS
Line OC 166 The measured Line Current has exceeded
Line Overcurrent Trip (P161) for the duration
set in Line Overcurrent Delay (P162). – CHECK FOR SHORTED SCRs – DO
NOT ATTEMPT TO RESET THIS
FAULT UNTIL YOU HAVE VERIFIED
THE SCRS ARE NOT SHORTED
– Investigate Possible damage to the input
isolation transformer if there have been
several aborted starts with Line OC faults
– Verify that the drive sizing is not too
small for the Rated Motor Current
– Verify Parameters are set properly
– Verify the Burden resistors are not
opened and there are no loose grounds
– Verify the integrity of Line Filter
Capacitors (for PWM rectifier drives),
looking for short circuits or signs of
physical damage. Refer to chapter-6 of
the user manual for detailed instructions
on Testing Filter Capacitors.
Line OV 159 The calculated Line Voltage has exceeded
Line Overvoltage Trip (P165) for the
duration set in Line Overvoltage Delay
(P166). This is calculated by looking at the
compensated individual bridge voltages
Master, Slave1 and Slave2 (P136-138), and
comparing them to 1/3 of Line Overvoltage
Trip.
– Verify the parameters are set properly
– Verify VSB connections and tap settings,
resistor values, and grounds
– Verify that the parameter L Commutation
(P140) was tuned properly.
– If voltage is too high, change tap settings
on the input source to lower voltage to an
acceptable level
Line ADC_DAC 210 Line DCB Internal Hardware Fault – Board Malfunction – Cycle Control
Power, to see if the Fault condition
remains and Replace DCB-L if
necessary
Line DMA Overrun 217 Line DCB Internal Hardware Fault
Line Timer0 208 Line DCB Internal Hardware Fault
Line Timer1 209 Line DCB Internal Hardware Fault
Line FPGA 207 Line DCB Internal Hardware Fault
Line FOB ChA 211 This fault occurs if the Line Fiber Optic
Interface Board A is not connected, but is
required based on the number of devices
specified (Drive Type and Line Voltage
Dependent).
– Improper parameter settings for Rectifier
Series Devices or Rectifier Type
– Verify parameters
– Damaged FOI Board – Check the LED
status on the FOI board – replace if
necessary
– DCB-L pin damage – Inspect the pins on
the DCB-L and ensure there is no
damage
– Replace the DCB-L if necessary
Line FOB ChB 212 This fault occurs if the Line Fiber Optic
Interface Board B is not connected, but is
required based on the number of devices
specified (Drive Type and Line Voltage
Dependent).
Line FOB ChC 213 This fault occurs if the Line Fiber Optic
Interface Board C is not connected, but is
required based on the number of devices
specified (Drive Type and Line Voltage
Dependent).