Danfoss VLT Automation Drive FC 360 Programming Manual page 148

Troubleshooting
No. Description
55 AMA parameter range
56 AMA interrupt
57 AMA timeout
58 AMA internal
59 Current limit
61 Encoder loss
63 Mechanical brake low
65 Control card temp
67 Option change
69 Power card temp
6 6
Drive initialised to default
80
value
87 Auto DC braking
88 Option detection
90 Feedback monitor
95 Broken belt
101 Flow/pressure information
missing
120 Position control fault
250 New spare part
251 New type code
252 Tension limit
nw
Not while running
run
A wrong password was
Err.
entered
Table 6.2 Warnings and Alarms Code List
1) These faults can be caused by mains distortions. Installing Danfoss line filter could fix this problem.
The alarm words, warning words and extended status
words can be accessed via fieldbus or optional fieldbus for
diagnosis.
WARNING/ALARM 2, Live zero error
This warning or alarm only appears if programmed in
parameter 6-01 Live Zero Timeout Function. The signal on 1
of the analog inputs is less than 50% of the minimum
value programmed for that input. Broken wiring or faulty
device sending the signal can cause this condition.
Troubleshooting
•
Check connections on all the analog input
terminals. Control card terminals 53 and 54 for
signals, terminal 55 common.
•
Check that the frequency converter programming
and switch settings match the analog signal type.
•
Perform the input terminal signal test.
146
®
VLT AutomationDrive FC 360
Warning Alarm Trip lock
X
X
X
X
X X
X X
X
X X X
X
X X X
X
X
X X
X X
X X
X X
X
X X
X X
X
WARNING/ALARM 4, Mains phase loss
A phase is missing on the supply side, or the mains
voltage imbalance is too high. This message also appears
for a fault in the input rectifier on the frequency converter.
Options are programmed in parameter 14-12 Function at
Mains Imbalance.
Troubleshooting
WARNING/ALARM 7, DC overvoltage
If the DC-link voltage exceeds the limit, the frequency
converter trips after a time.
Troubleshooting
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Cause
The parameter values of the motor are outside of the
acceptable range. AMA does not run.
The AMA.
Run the AMA again.
Contact Danfoss.
Frequency converter overload.
Actual motor current has not exceeded the release brake
current within start delay time window.
The cut-out temperature of the control card is 80 °C.
A new option is detected, or a mounted option is removed.
The difference between the speed reference and the
feedback exceeds the limit.
All parameters are initialised to default settings.
Occurs in IT mains when the frequency converter coasts and
the voltage is higher than 830 V. Energy on the DC link is
consumed by the motor. This function can be enabled/
disabled in parameter 0-07 Auto DC Braking.
An option is removed successfully.
Option B detects a feedback fault.
The parameter can only be changed when the motor is
stopped.
Occurs when using a wrong password for changing a
password-protected parameter.
•
Check the supply voltage and supply currents to
the frequency converter.
•
Extend the ramp time.
•
Change the ramp type.
MG06C602