Danfoss VLT AutomationDrive FC 302 Operating Instructions Manual page 58

Maintenance, Diagnostics an...
frequency converter is set to run with fewer inverters and
remains on.
ALARM 78, Tracking error
The difference between setpoint value and actual value
exceeds the value in parameter 4-35 Tracking Error. Disable
the function or select an alarm/warning in
parameter 4-34 Tracking Error Function. Investigate the
mechanics around the load and motor, check feedback
connections from motor encoder to frequency converter.
Select motor feedback function in parameter 4-30 Motor
Feedback Loss Function. Adjust tracking error band in
parameter 4-35 Tracking Error and parameter 4-37 Tracking
Error Ramping.
ALARM 79, Illegal power section configuration
The scaling card has an incorrect part number or is not
installed. The MK102 connector on the power card could
not be installed.
7 7
ALARM 80, Drive initialised to default value
Parameter settings are initialised to default settings after a
manual reset. To clear the alarm, reset the unit.
ALARM 81, CSIV corrupt
CSIV file has syntax errors.
ALARM 82, CSIV parameter error
CSIV failed to initialise a parameter.
ALARM 83, Illegal option combination
The mounted options are incompatible.
ALARM 84, No safety option
The safety option was removed without applying a general
reset. Reconnect the safety option.
ALARM 88, Option detection
A change in the option layout is detected.
Parameter 14-89 Option Detection is set to [0] Frozen config-
uration and the option layout has been changed.
•
To apply the change, enable option layout
changes in parameter 14-89 Option Detection.
•
Alternatively, restore the correct option configu-
ration.
WARNING 89, Mechanical brake sliding
The hoist brake monitor detects a motor speed exceeding
10 RPM.
ALARM 90, Feedback monitor
Check the connection to encoder/resolver option and, if
necessary, replace VLT
Resolver Input MCB 103.
ALARM 91, Analog input 54 wrong settings
Set switch S202 in position OFF (voltage input) when a
KTY sensor is connected to analog input terminal 54.
ALARM 99, Locked rotor
Rotor is blocked.
56
VLT® AutomationDrive FC 302
®
Encoder Input MCB 102 or VLT
Danfoss A/S © 06/2015 All rights reserved.
WARNING/ALARM 104, Mixing fan fault
The fan is not operating. The fan monitor checks that the
fan is spinning at power-up or whenever the mixing fan is
turned on. The mixing-fan fault can be configured as a
warning or an alarm trip in parameter 14-53 Fan Monitor.
Troubleshooting
•
Cycle power to the frequency converter to
determine if the warning/alarm returns.
WARNING/ALARM 122, Mot. rotat. unexp.
The frequency converter performs a function that requires
the motor to be at standstill, for example DC hold for PM
motors.
WARNING 163, ATEX ETR cur.lim.warning
The frequency converter has run above the characteristic
curve for more than 50 s. The warning is activated at 83%
and deactivated at 65% of the permitted thermal overload.
ALARM 164, ATEX ETR cur.lim.alarm
Operating above the characteristic curve for more than
60 s within a period of 600 s activates the alarm, and the
frequency converter trips.
WARNING 165, ATEX ETR freq.lim.warning
The frequency converter is running for more than 50 s
below the permitted minimum frequency
(parameter 1-98 ATEX ETR interpol. points freq.).
ALARM 166, ATEX ETR freq.lim.alarm
The frequency converter has operated for more than 60 s
(in a period of 600 s) below the permitted minimum
frequency (parameter 1-98 ATEX ETR interpol. points freq.).
ALARM 244, Heat Sink temperature
This alarm is only for enclosure type F frequency
converters. It is equivalent to Alarm 29. The report value in
the alarm log indicates which power module generated
the alarm:
1 = Left most inverter module.
2 = Middle inverter module in enclosure size F12
or F13.
2 = Right inverter module in enclosure size F10 or
F11.
2 = Second frequency converter from the left
inverter module in enclosure size F14 or F15.
3 = Rght inverter module in enclosure sizes F12
or F13.
®
3 = Tird from the left intverter module in
enclosure size F14 or F15.
4 = Far right inverter module in enclosure sizes
F14 or F15.
5 = Rectifier module.
6 = Right rectifier module in enclosure sizes F14
or F15.
MG34U402