61
14
Resettable
Fault
14084 Bus Imbalanc Flt
Bus Imbalance Fault. The DC bus voltage
imbalance between Mn Power modules
has exceeded the fault threshold. See the
corresponding parameter in Port 12 [Mn
DC BusVoltage].
If fault persists replace the balance
resistors, the DC bus capacitor
assembly, or Ln power module. See
the hardware service manual,
publication 750-TG100, for the
replacement procedure.
Stop (Line Side Converter).
Additional Fault Action. Fault opens
main circuit breaker: Yes. Fault can
automatically reset: No. Emergency
override response: 0:455 [Emerg Prot
OVRD] bit 1 ‘LS Pwr Flts’.
14
Resettable
Fault
14085 PWM Enable Flt
PWM Enable w/o DTM Active Fault.
Control attempted to modulate before the
thermal manager was running.
Cycle power.
Stop (Line Side Converter).
Additional Fault Action. Fault opens
main circuit breaker: No. Fault can
automatically reset: Yes. Emergency
override response: 0:455 [Emerg Prot
OVRD] bit 1 ‘LS Pwr Flts’.
14
Resettable
Fault
14086 L/R Overtemp
L/R Overtemp. An over temperature
event has occurred in the parallel inductor
or dv/dt filter. High temperature caused
the thermal switch to open. Check cabinet
filters, heatsink fans, intake air
temperatures, and the baffles that help
prevent recirculation of heated air. See
the corresponding diagnostic item in Port
14 [LnStatusWord] Bit 2 ‘LR OT Swth’.
—
Stop (Line Side Converter).
Additional Fault Action. Fault opens
main circuit breaker: No. Fault can
automatically reset: No. Emergency
override response: 0:455 [Emerg Prot
OVRD] bit 1 ‘LS Pwr Flts’.
14
Resettable
Fault
14087 BusCond BayOTmp
Bus Conditioner Fault or Wiring Bay
Overtemp. Two conditions can cause this
fault:
• Condition 1: A bus conditioner is not
functioning properly.
• Condition 2: High temperature in the
optional exit wiring bay can only
cause the fault in the last motor side
inverter power module.
For example, in a Frame 9 drive that is
M1, or in a Frame 11 drive that is M3. If
the fault occurs in a power module that is
not the last motor side inverter power
module, the cause must be a bus
conditioner. If it occurs in a power module
that is part of the line side converter, the
cause must be a bus conditioner.
• Condition 1: Inspect the bus
conditioners and the thermal
sensor harness for the exit wiring
bay. See the Hardware Service
Manual, publication 750-TG100.
• Condition 2: Check the enclosure
filters and fans. Problems with the
baffling between these bays and
adjacent bays can be sources of
heat.
Stop (Line Side Converter).
Additional Fault Action. Fault opens
main circuit breaker: No. Fault can
automatically reset: Yes. Emergency
override response: 0:455 [Emerg Prot
OVRD] bit 1 ‘LS Pwr Flts’.
14
Resettable
Fault
14088 Sec Fbk Watchdog
Secondary Feedback Watchdog.
Transmission of the feedback message
(PDI fiber-optic cable connection on the
Ln power layer interface (PLI) circuit
board) from the current sense board
(CSB) in the LCL filter has timed out.
If the fault persists, power down and
then check the fiber-optic
communication connections.
Stop (Line Side Converter).
Additional Fault Action. Fault opens
main circuit breaker: No. Fault can
automatically reset: Yes. Emergency
override response: 0:455 [Emerg Prot
OVRD] bit 7 ‘Board Faults’.
14
Resettable
Fault
14090 CabAirHiTempRise
Cabinet Air High Temperature Rise. The
High Temperature Rise function has
detected an event when the temperature
in the power module has risen higher than
expected for the load and ambient
temperature. The condition must be
present for ten minutes for this alarm to
occur. Possible causes include blocked
cabinet filters and improper internal
airflow.
Check the cabinet filters for blockage.
Check to see that internal airflow
baffles are properly installed. Check the
condition of cabinet air filters and fans.
Verify adequate airflow and the baffles
that help prevent recirculation of heated
air.
—
14
Resettable
Fault
14091 CabAirLoTempRise
Cabinet Air Low Temperature Rise. The
Low Temperature Rise function has
detected an event when the temperature
in the power module has failed to rise as
expected for the load and ambient
temperature. Possible causes include
missing cabinet filters or open doors.
Check to see that cabinet air filters are
properly installed. Check to see that the
cabinet doors are properly closed.
—
14
Resettable
Fault
14096 R Pos IOC Flt
R Pos IOC Fault. The Ln power layer
interface (PLI) hardware in the power
module has detected an instantaneous
over current (IOC) event on the positive
side of the R (L1) input phase.
Replace the Ln power module. See the
hardware service manual, publication
750-TG100, for the replacement
procedure.
Stop (Line Side Converter).
Additional Fault Action. Fault opens
main circuit breaker: No. Fault can
automatically reset: Yes. Emergency
override response: Cannot override
this fault.
14
Resettable
Fault
14097 S Pos IOC Flt
S Pos IOC Fault. The Ln power layer
interface (PLI) hardware in the power
module has detected an instantaneous
over current (IOC) event on the positive
side of the S (L2) input phase.
Replace the Ln power module. See the
hardware service manual, publication
750-TG100, for the replacement
procedure.
Stop (Line Side Converter).
Additional Fault Action. Fault opens
main circuit breaker: No. Fault can
automatically reset: Yes. Emergency
override response: Cannot override
this fault.
14
Resettable
Fault
14098 T Pos IOC Flt
T Pos IOC Fault. The Ln power layer
interface (PLI) hardware in the power
module has detected an instantaneous
over current (IOC) event on the positive
side of the T (l3) input phase.
Replace the Ln power module. See the
hardware service manual, publication
750-TG100, for the replacement
procedure.
Stop (Line Side Converter).
Additional Fault Action. Fault opens
main circuit breaker: No. Fault can
automatically reset: Yes. Emergency
override response: Cannot override
this fault.
Table 7 — Fault Codes by Port (cont)
PORT
CONDITION
DISPLAY
TEXT
FAULT ACTION FAULT ACTION
TYPE CODE
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