Pwrdn Nvs Blank; Pwrdn Data Chksm; Pwrdn Data Fail; Digin Regen Fail - Carrier 19XR Start-Up And Service Instructions

CONDITION
PORT
TYPE CODE
Resettable
0 43

PwrDn NVS Blank

Fault
Non-Resettable
0 58

PwrDn Data Chksm

Fault
Resettable
0 67

PwrDn Data Fail

Fault
Resettable
0 72

Digin Regen Fail

Fault
Resettable
0 86

HW Enbl Jmpr Out

Fault
Non-Resettable
0 87

Safety Brd Fault

Fault
Table 7 — Fault Codes by Port (cont)
DISPLAY
FAULT
TEXT
Power Down NVS Blank. An internal data
error occurred. This fault occurs on power
down but is checked for on power-up. If
the power down occurs too fast, this fault
can occur. If you are using an undersized
auxiliary power supply and the last power
down was from auxiliary power, this fault
can occur.
Power Down Data Checksum. Checksum
failed for non-volatile data.
Power Down Data Failure. The stored
power down data has failed to be
retrieved 3 or more times. This fault is
clearable upon power-up. Faults continue
on power-up until the main control board
is replaced.
Digital Input Regeneration Failure. Digital
input signal from a regenerative power
supply or third-party bus supply indicates
a regeneration fault. This condition is
applicable to common bus inverters only.
Hardware Enable Jumper Out. A safety
option module is present and the
hardware enable jumper is removed.
A Safety option module has indicated a
fault. Verify that enable jumper is
installed. Reset or power cycle drive.
• Integrated Safety Functions (20-750-
S4): See publication 750-UM005 for
more information.
• Integrated Safety (20-750-S3): See
publication 750-UM004 for more
information.
• Safe Speed Monitor (20-750-S1):
See publication 750-RM001 for more
information.
• Safe Torque Off (20-750-S):
If DC power drops below 17V DC 'Not
Enable' is indicated.
If voltage drops below 11V DC the
module faults.
See publication 750-UM002 for more
information.
• ATEX (20-750-ATEX): Possible
hardware damage.
The motor to the thermal sensor is
shorted. 
Excessive EMC noise due to
improper grounding/shielding.
See publication 750-UM003 for more
information.
ACTION
Reset parameter defaults. This fault
occurs on power down but is checked
for on power-up. If the power down
occurs too fast, this fault can occur. If
you are using an undersized auxiliary
power supply and last power down was
from auxiliary power, this fault can
occur. Reload parameters. Ensure the
auxiliary power supply is properly sized.
See the installation instructions,
publication 750-IN100 for PowerFlex
755T or publication 750-IN119 for
PowerFlex 755TS products, for
requirements. If problem persists,
replace main control board. See the
hardware service manual, publication
750-TG100 for PowerFlex 755T or
publication 750-TG101 for PowerFlex
755TS products, for the replacement
procedure.
Verify that the auxiliary power supply is
sized correctly. If problem persists,
replace the main control board. See the
hardware service manual, publication
750-TG100 or publication 750-TG101
for PowerFlex 755TS products, for the
replacement procedure. Important:
Predictive maintenance and runtime
data on the main control board is lost.
Replace the main control board. See
the hardware service manual,
publication 750-TG100 for PowerFlex
755T or publication 750-TG101 for
PowerFlex 755TS products, for the
replacement procedure. If a 24V DC
auxiliary power supply is used for
control power, confirm that the power
supply is sized for the drive before main
control board replacement.
Determine where the DI Regen OK
input function is assigned using
parameter 0:116 [DI Regen OK]. Verify
that this assigned input is not open or
reset.
Install the Hardware Enable jumper on
the main control board. See the
installation instructions, publication
750-IN100 for PowerFlex 755T or
publication 750-IN119 for PowerFlex
755TS products, for jumpers location
and configurations.
See the event queue or fault status for
the safety option module. If the fault
persists, reseat the main control board.
28
FAULT ACTION
Coast (Motor Side Inverter). 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 13 'Port 6 Flts'.
Coast (Motor Side Inverter). Stop
(Line Side Converter). Additional
Fault Action. Fault opens main circuit
breaker: Yes. Fault can automatically
reset: No. Emergency override
response: Cannot override this fault.
Coast (Motor Side Inverter). Stop
(Line Side Converter). Additional
Fault Action. Fault opens main circuit
breaker: No. Fault can automatically
reset: No. Emergency override
response: Cannot override this fault.
Coast (Motor Side Inverter).
Additional Fault Action. Fault opens
main circuit breaker: No. Fault can
automatically reset: No. Emergency
override response: Ignore.
Coast (Motor Side Inverter). Stop
(Line Side Converter) . Additional
Fault Action. Fault opens main circuit
breaker: No. Fault can automatically
reset: No. Emergency override
response: Cannot override this fault.
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.