Appendix A—Fault and Warning Codes
PowerXL DH1 Series Variable Frequency Drives MN040039EN—April 2018 www.eaton.com 41
9 UnderVoltage Configurable Fault DC link voltage is under the voltage limits
defined:
• Most probable cause: Too low a supply
voltage
• AC drive internal fault
• Defect input fuse
• External charge switch not closed
Note: This fault is activated only if the drive is
in Run state.
In case of temporary supply voltage break,
reset the fault and restart the AC drive
Check the supply voltage. If it is adequate,
an internal failure has occurred. Contact
the distributor near you
10 Input Phase Superv Configurable Fault Input line phase is missing Check supply voltage, fuses and cable
11 Output Phase Superv Configurable Fault Current measurement has detected that there
is no current in one motor phase
Check motor cable and motor
12 Brake Chopper
Superv
Fault • No brake resistor installed
• Brake resistor is broken
• Brake chopper failure
Check brake resistor and cabling. If these
are OK, the chopper is faulty. Contact the
distributor near you
13 Drive UnderTemp Configurable Warning Too low temperature measured in power
unit’s heat sink or board. Heat sink
temperature is under –10°C
14 Drive OverTemp Fault Too high temperature measured in power
unit’s heat sink or board. Heat sink
temperature is over 90°C
• Check the correct amount and flow of
cooling air
• Check the heat sink for dust
• Check the ambient temperature
• Make sure that the switching frequency
is not too high in relation to ambient
temperature and motor load
15 Motor Stalled Configurable No Action Motor is stalled Check motor and load
16 Motor Over Temp Configurable No Action Motor is too hot, based on either the drive’s
estimate or on temperature feedback
Decrease motor load. If no motor overload
exists, check the temperature model
parameters
17 Motor Under Load Configurable No Action Condition defined by parameter
P1.9.15~P1.9.17 have been valid longer than
the time defined by P1.9.18
Check load
18 IP Address Conflict Configurable Warning IP setting issue. Check settings for IP address, verify no
duplicates are on the network.
19 Power Board
EEPROM Fault
Fault Power board EEPROM fault, memory lost in
EEPROM.
Cycle power to drive. Try updating
software. If issue continues, contact
distributor near you.
20 FRAM Fault Fault FRAM data error in FRAM memory. Cycle power to drive. Try updating
software. If issue continues, contact
distributor near you.
21 S-Flash Fault warning Serial flash error, serial flash memory failed. Cycle power to drive. Try updating
software. If issue continues, contact
distributor near you.
25 MCU WatchDog Fault Fault Watchdog register overflows in MCU Cycle power to drive. Try updating
software. If issue continues, contact
distributor near you.
26 Start-up Prevent Fault The time when Interlock signal activates is
over setting time.
Stop drive and resend start command.
29 Thermistor Fault Configurable Fault Option board or control board thermistor
resistor lager than 4.7K
Thermistor open or short, over temperature
32 Fan Cooling Fault Fan is damaged or stalled. Check fan and fan connected wires, verify
24 Vdc is supplied to fan.
Table 51. Fault Codes and Descriptions, continued
Fault
Code Fault Name Fault Type
Default
Fault Type Possible Cause Remedy
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