Troubleshooting
•
Check connections on the serial communication
cable.
•
Increase
parameter 8-03 Control Word Timeout
Time
.
•
Check the operation of the communication
equipment.
•
Verify a proper installation based on EMC
requirements.
ALARM 30, Motor phase U missing
Motor phase U between the frequency converter and the
motor is missing.
Troubleshooting
•
Remove power from the frequency converter and
check motor phase U.
ALARM 31, Motor phase V missing
Motor phase V between the frequency converter and the
motor is missing.
Troubleshooting
•
Remove power from the frequency converter and
check motor phase V.
ALARM 32, Motor phase W missing
Motor phase W between the frequency converter and the
motor is missing.
Troubleshooting
•
Remove power from the frequency converter and
check motor phase W.
ALARM 38, Internal fault
When an internal fault occurs, a code number is displayed.
Troubleshooting
See
for the causes and solutions for different
internal faults. If the fault persists, contact the Danfoss
supplier or service department for assistance.
Fault
number
Cause
Solution
140–142
Power Board
EEPROM data error
Upgrade the software in the
frequency converter to the
latest version.
176
The firmware in the
frequency converter
does not match the
frequency converter.
Upgrade the software in the
frequency converter to the
latest version.
256
Flash ROM
checksum error
Upgrade the software in the
frequency converter to the
latest version.
2304
Firmware mismatch
between the control
card and the power
card.
Upgrade the software in the
frequency converter to the
latest version.
Fault
number
Cause
Solution
2560
Communication
error between the
control card and the
power card.
Upgrade the software in the
frequency converter to the
latest version. If the alarm
occurs again, check the
connection between the
control card and the power
card.
3840
Serial flash version
error
Upgrade the software in the
frequency converter to the
latest version.
4608
Frequency converter
power size error
Upgrade the software in the
frequency converter to the
latest version. If the alarm
occurs again, contact your
Danfoss supplier.
5632
Option hardware
version error
The hardware version of the
option or the fieldbus variant is
not compatible with the
frequency converter software.
5888
Option software
version error
The software version of the
option or the fieldbus variant is
not compatible with the
frequency converter software.
Change either the fieldbus
software or the frequency
converter software.
6144
The option is not
supported
Check if the product supports
this option.
6400
The option
combination error
Remove the option.
Other
Other internal faults Power cycle the frequency
converter. If the alarm occurs
again, contact your Danfoss
supplier.
Table 6.3 Internal Fault List
WARNING 47, 24 V supply low
The 24 V DC is measured on the control card.
ALARM 51, AMA check U
nom
and I
nom
The settings for motor voltage, motor current, and motor
power are wrong.
Troubleshooting
•
Check the settings in parameters 1-20 to 1-25.
ALARM 52, AMA low I
nom
The motor current is too low.
Troubleshooting
•
Check the setting in
parameter 1-24 Motor Current
.
ALARM 53, AMA motor too big
The motor is too large for the AMA to operate.
ALARM 54, AMA motor too small
The motor is too small for the AMA to operate.
Troubleshooting
VLT
®
AutomationDrive FC 360
148
Danfoss A/S © 7/2015 All rights reserved.
MG06C602
6
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