47
12
Resettable
Fault
12008 MCS Shunt Trip
MCS Shunt Trip. The molded case switch
(MCS) in the DC precharge has failed to
open within the specified time.
Power down. Replace the MCS. See
the hardware service manual,
publication 750-TG100 for PowerFlex
755T or publication 750-TG101 for
PowerFlex 755TS products, for the
replacement procedure. Then reset the
MCS elapsed life parameter.
Coast (Motor Side Inverter).
Additional Fault Action. Fault opens
main circuit breaker: Yes. Fault can
automatically reset: No. Emergency
override response: 0:455 [Emerg Prot
OVRD] bit 3 ‘MS Pwr Flts’.
12
Resettable
Fault
12009 MCS Aux Mismatch
MCS Aux Mismatch or Wiring Bay
Overtemp. Two things conditions can
cause this fault:
• Condition 1: The auxiliary contact on
the molded case switch (MCS) in the
DC precharge is not functioning
properly.
• Condition 2: The temperature in the
input bay or entry wiring bay has risen
too high. This condition can only
cause the fault before the drive or bus
supply has completed precharge.
Investigate causes for over-
temperature in these bays.
Check the circuit breaker. Check the
Predictive Maintenance parameters for
the MCC. Check the enclosure filters
and fans. Check the thermal sensor
harness for the input bay or entry wiring
bay or bypass jumper. Check the
Predictive Maintenance objects for
these fans. Check the baffling between
these bays and adjacent bays that can
be sources of heat. Condition 1: Inspect
the DC precharge module and the
thermal sensor harness for the exit
wiring bay. Condition 2: Check the
enclosure filters and fans. Problems
with the baffling between these bay and
adjacent bays can be sources of heat.
See the Service Manual, publication
750-TG100 for PowerFlex 755T or
publication 750-TG101 for PowerFlex
755TS products, for details on these
devices.
Coast (Motor Side Inverter).
Additional Fault Action. Fault opens
main circuit breaker: Yes. Fault can
automatically reset: No. Emergency
override response: 0:455 [Emerg Prot
OVRD] bit 3 ‘MS Pwr Flts’.
12
Resettable
Fault
12010 240VAC Loss Flt
240 VAC Loss Fault. The 240 VAC supply
voltage fell below the specified minimum
voltage level of 154 VAC during the pre-
charge cycle or while the molded case
switch (MCS) is closed. See the
corresponding [DCPn PwrSup Vltg] Port
12 parameter.
Verify that the 240 VAC input is within
specification. Inspect DCPC module
240 VAC supply fuses and
connections. See the hardware service
manual, publication 750-TG100 for
PowerFlex 755T or publication 750-
TG101 for PowerFlex 755TS products,
for the system schematics.
Coast (Motor Side Inverter).
Additional Fault Action. Fault opens
main circuit breaker: Yes. Fault can
automatically reset: No. Emergency
override response: Cannot override
this fault.
12
Resettable
Fault
12011 240VAC OV
240 VAC Over Voltage. The 240 VAC
supply voltage rose above the specified
maximum voltage level of 283V AC. See
the corresponding [DCPn PwrSup Vltg]
Port 12 parameter.
Verify that the 240 VAC input is within
specification. See the hardware service
manual, publication 750-TG100 for
PowerFlex 755T or publication 750-
TG101 for PowerFlex 755TS products,
for the system schematics.
Coast (Motor Side Inverter).
Additional Fault Action. Fault opens
main circuit breaker: Yes. Fault can
automatically reset: No. Emergency
override response: 0:455 [Emerg Prot
OVRD] bit 3 ‘MS Pwr Flts’.
12
Resettable
Fault
12012 FDOpen MCSClose
Fused Disconnect Open (MCS Closed).
Firmware detected that the fused
disconnect was opened when molded
case switch (MCS) was open.
Power down and check the wiring in
the DC precharge module.
Coast (Motor Side Inverter).
Additional Fault Action. Fault opens
main circuit breaker: Yes. Fault can
automatically reset: No. Emergency
override response: Cannot override
this fault.
12
Resettable
Fault
12013 SysPwr OC Fault
SysPwr OC Fault. An over current event
occurred in the local (internal to the PIB)
power supply. It affects the operation of
the positive 24V power supply. The most
likely cause is a component failure in the
Mn PIB, DCPC, or power module.
Replace failed component. See the
hardware service manual, publication
750-TG100 for PowerFlex 755T or
publication 750-TG101 for PowerFlex
755TS products, for the replacement
procedure.
Coast (Motor Side Inverter).
Additional Fault Action. Fault opens
main circuit breaker: No. Fault can
automatically reset: No. Emergency
override response: 0:455 [Emerg Prot
OVRD] bit 3 ‘MS Pwr Flts’.
12
Resettable
Fault
12017 Gate Drive Flt
Gate Drive Fault. A Gate Drive Board fault
has occurred. Possible causes include an
internal power supply failure (if the fault
occurred before the drive or bus supply
was enabled), or an IGBT desaturation
(over temperature or over current) event.
Inspect status indicators on power layer
interface (PLI) circuit board. Replace
the Mn power module. See hardware
service manual, publication 750-TG100
for PowerFlex 755T or publication 750-
TG101 for PowerFlex 755TS products,
for the replacement procedure.
Coast (Motor Side Inverter).
Additional Fault Action. Fault opens
main circuit breaker: No. Fault can
automatically reset: No. Emergency
override response: 0:455 [Emerg Prot
OVRD] bit 3 ‘MS Pwr Flts’.
12
Resettable
Fault
12018 Fiber Offline
Fiber Went Offline. The fiber-optic
communication link between the fiber
interface circuit board and one of the
power peripherals (power layer interface
board, torque accuracy module, or DC
precharge board) transitioned from online
to offline.
Clear faults. If the fault persists, power
down and then check the fiber-optic
communication connections.
Coast (Motor Side Inverter).
Additional Fault Action. Fault opens
main circuit breaker: Yes. Fault can
automatically reset: No. Emergency
override response: 0:455 [Emerg Prot
OVRD] bit 7 ‘Board Faults’.
12
Resettable
Fault
12019 SysPwr OV Flt
SysPwr OV Fault. An overvoltage event
occurred in the local (internal to the PIB)
power supply. It affects the operation of
the positive 24V power supply. The most
likely cause is component failure.
Inspect status indicators on power layer
interface (PLI) circuit board. Replace
the Mn power module or PLI. See
hardware service manual, publication
750-TG100 for PowerFlex 755T or
publication 750-TG101 for PowerFlex
755TS products, for the replacement
procedure.
Coast (Motor Side Inverter).
Additional Fault Action. Fault opens
main circuit breaker: No. Fault can
automatically reset: No. Emergency
override response: 0:455 [Emerg Prot
OVRD] bit 3 ‘MS Pwr Flts’.
Table 7 — Fault Codes by Port (cont)
PORT
CONDITION
DISPLAY
TEXT
FAULT ACTION FAULT ACTION
TYPE CODE
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