49
12
Resettable
Fault
12032 U LowTemp Flt
Heatsink-U LowTemp Fault. The
temperature in the heatsink for the U (T1)
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 HeatsinkTempU]. 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
12034 NTC-V Short Flt
NTC-V Short Fault. The heatsink
temperature sensor (NTC) for the V (T2)
phase of the power module indicates a
short circuit (the value has risen above
150°C). The sensor or circuit is faulty. See
the corresponding parameter in Port 12
[Mn HeatsinkTempV].
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
12035 NTC-V Open Flt
NTC-V Open Fault. The heatsink
temperature sensor (NTC) for the V (T2)
phase of the power module indicates an
open circuit (the value has fallen below
–40°C). The sensor or circuit is faulty. See
the corresponding parameter in Port 12
[Mn HeatsinkTempV].
Replace 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: 0:455 [Emerg Prot
OVRD] bit 3 ‘MS Pwr Flts’.
12
Resettable
Fault
12036 V OverTemp Flt
Heatsink-V OverTemp Fault. The
temperature in the heatsink for the V (T2)
phase of the power module has risen
above 118°C. Possible causes include
loads that require too much current and
power, improper derating for temperature
and altitude, and obstructed airflow. 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 drive is sized and
derated correctly. Check the condition
of cabinet air filters. Verify adequate
airflow and 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
12038 V 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
12040 NTC-W Short Flt
NTC-W Short Fault. The heatsink
temperature sensor (NTC) for the W (T3)
phase of the power module indicates a
short circuit (the value has risen above
150°C). The sensor or circuit is faulty. See
the corresponding parameter in Port 12
[Mn HeatsinkTempW].
Replace 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: 0:455 [Emerg Prot
OVRD] bit 3 ‘MS Pwr Flts’.
12
Resettable
Fault
12041 NTC-W Open Flt
NTC-W Open Fault. The heatsink
temperature sensor (NTC) for the W (T3)
phase of the power module indicates an
open circuit (the value has fallen below
–40°C). The sensor or circuit is faulty. See
the corresponding parameter in Port 12
[Mn HeatsinkTempW].
Replace 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: 0:455 [Emerg Prot
OVRD] bit 3 ‘MS Pwr Flts’.
12
Resettable
Fault
12042 W OverTemp Flt
Heatsink-W OverTemp Fault. The
temperature in the heatsink for the W (T3)
phase of the power module has risen
above 118°C. Possible causes include
loads that require too much current and
power, improper derating for temperature
and altitude, and obstructed airflow. See
the corresponding parameter in Port 12
[Mn HeatsinkTempW]. 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 drive is sized and
derated correctly. Check the condition
of cabinet air filters. Verify adequate
airflow and 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’.
Table 7 — Fault Codes by Port (cont)
PORT
CONDITION
DISPLAY
TEXT
FAULT ACTION FAULT ACTION
TYPE CODE
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