Danfoss VLT AutomationDrive FC 301 Instruction Manual page 50

Maintenance, Diagnostics an...
ALARM 75, Illegal profile sel.
Parameter value must not be written while motor is
running. Stop motor before writing MCO profile to
8-10 Control Word Profile.
WARNING 76, Power unit set-up
The required number of power units does not match the
detected number of active power units.
WARNING 77, Reduced power mode
The adjustable frequency drive is operating in reduced
power mode (less than the allowed number of inverter
sections). This warning is generated on power cycle when
the adjustable frequency drive is set to run with fewer
inverters and remains on.
ALARM 78, Tracking error
The difference between the setpoint value and the actual
7 7
value has exceeded the value in 4-35 Tracking Error. Disable
the function or select an alarm/warning in 4-34 Tracking
Error Function. Investigate the mechanics around the load
and motor, check feedback connections from motor
encoder to adjustable frequency drive. Select motor
feedback function in 4-30 Motor Feedback Loss Function.
Adjust tracking error band in 4-35 Tracking Error and
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.
ALARM 80, Drive initialized to default value
Parameter settings are initialized 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 initialize 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 was detected. 14-89 Option
Detection is set to [0] Frozen configuration and the option
layout has been changed.
•
To apply the change, enable option layout
changes in 14-89 Option Detection.
•
Alternatively, restore the correct option configu-
ration.
48
Instruction Manual
WARNING 89, Mechanical brake sliding
The hoist brake monitor has detected a motor speed > 10
RPM.
ALARM 90, Feedback monitor
Check the connection to encoder/resolver option and
eventually replace the MCB 102 or MCB 103.
ALARM 91, Analog input 54 wrong settings
Switch S202 has to be set in position OFF (voltage input)
when a KTY sensor is connected to analog input terminal
54.
ALARM 99, Locked rotor
Rotor is blocked.
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 14-53 Fan Monitor.
Troubleshooting
WARNING/ALARM 122, Mot. rotat. unexp.
The adjustable frequency drive performs a function that
requires the motor to be at standstill, e.g., DC hold for PM
motors.
WARNING 163, ATEX ETR cur.lim.warning
The adjustable frequency drive has run above the charac-
teristic 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
adjustable frequency drive trips.
WARNING 165, ATEX ETR freq.lim.warning
The adjustable frequency drive is running more than 50 s
below the permitted minimum frequency (1-98 ATEX ETR
interpol. points freq.).
ALARM 166, ATEX ETR freq.lim.alarm
The adjustable frequency drive has operated more than
60 s (in a period of 600 s) below the permitted minimum
frequency (1-98 ATEX ETR interpol. points freq.).
Danfoss A/S © Rev. 09/2014 All rights reserved.
•
Cycle power to the adjustable frequency drive to
determine if the warning/alarm returns.
MG33AP22