50
12
Resettable
Fault
12044 W LowTemp Flt
Heatsink-V LowTemp Fault. The
temperature in the heatsink for the V (T2)
phase of the power module has fallen
below –30°C for a PowerFlex 755TR,
755TL, or 755TM product or –25°C for a
PowerFlex 755TS product. The most
common cause is an ambient
temperature that is too low for operation.
See the corresponding parameter in Port
12 [Mn HeatsinkTempV]. PowerFlex
755TS drives have only one heatsink
temperature sensor. The signal from that
sensor feeds the parameters for U, V, and
W phases.
Verify that the ambient temperature is
within specification. See the technical
data, publication 750-TD100 for
PowerFlex 755T or publication 750-
TD104 for PowerFlex 755TS products.
Coast (Motor Side Inverter).
Additional Fault Action. Fault opens
main circuit breaker: No. Fault can
automatically reset: Yes. Emergency
override response: 0:455 [Emerg Prot
OVRD] bit 3 ‘MS Pwr Flts’.
12
Resettable
Fault
12046 Jnt OverTemp Flt
Junction OverTemp Fault. The transistor
junction temperature of the power module
has exceeded the Fault Temperature
which is 155°C for 3.5 sec or 165°C.
Possible causes include loads that
require too much current and power,
improper derating for temperature and
altitude, improper flying start
configuration, and obstructed airflow. See
the corresponding parameter in Port 12
[Mn IGBT Temp]. Note: This temperature
may rise/fall faster than the update rate of
the drive.
Verify that the drive is sized and
derated correctly. Verify drive
configuration for proper starting torque
and motor nameplate data.
Coast (Motor Side Inverter).
Additional Fault Action. Fault opens
main circuit breaker: No. Fault can
automatically reset: Yes. Emergency
override response: 0:455 [Emerg Prot
OVRD] bit 3 ‘MS Pwr Flts’.
12
Resettable
Fault
12048 Str Overload Flt
Stator Overload Fault. The Current
Overload Count of the power module has
exceeded 100%. Possible causes include
loads that require too much torque and
current.
Check drive and load sizing. Check
mechanical factors that increase the
amount of torque and current.
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
12050 Bus Fuse Harness
Bus Fuse Harness. A DC bus fuse
harness is missing or disconnected.
Power down and examine the DC bus
fuse harness
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
12051 Bus PosFuseBlown
Bus Positive Fuse Blown. The positive
DC link fuse has cleared.
Power down. Investigate why the DC
link fuse cleared and correct. Replace
both DC link fuses. Perform component
test procedures. 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: Yes. Fault can
automatically reset: No. Emergency
override response: Cannot override
this fault.
12
Resettable
Fault
12052 Bus NegFuseBlown
Bus Negative Fuse Blown. The negative
DC link fuse has cleared.
Power down. Replace both DC link
fuses. Perform component test
procedures. 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: Yes. Fault can
automatically reset: No. Emergency
override response: Cannot override
this fault.
12
Resettable
Fault
12060 Volt Class Flt
Voltage Class Fault. The voltage class
that is programmed in the power module
is incorrect or corrupt.
Cycle power. If the fault persists,
replace the PIB board and/or the Mn
power module. 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: Cannot override
this fault.
12
Resettable
Fault
12061 Duty Rating Flt
Duty Rating Fault. The duty rating that is
programmed in the power module is
incorrect or corrupt.
Cycle power. If the fault persists,
replace the PIB board and/or the Mn
power module. 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: Cannot override
this fault.
12
Resettable
Fault
12062 Pwr UnitTyp Flt
Power Unit Type Fault. The power unit
type that is programmed in the power
module is incorrect or corrupt.
Cycle power. If the fault persists,
replace the PIB board and/or the Mn
power module. 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: Cannot override
this fault.
12
Resettable
Fault
12063 DTM ConstCorrFlt
DTM Constants Corrupted Fault. Runtime
constants data corruption detected.
Clear the fault. Cycle power. If the fault
persists, replace Mn power layer
interface (PLI) circuit board. 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: 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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