Danfoss VLT AQUA Drive FC 202 Operating Instructions Manual page 69

Diagnostics and Troubleshoo...
®
from the VLT PTC Thermistor Card MCB 112 is
deactivated. When that happens, a reset signal must be is
be sent (via Bus, Digital I/O, or by pressing [Reset]). Note
that if automatic restart is enabled, the motor could start
when the fault is cleared.
ALARM 72, Dangerous failure
Safe Torque Off with trip lock. Unexpected signal levels on
safe stop and digital input from the VLT
Card MCB 112.
WARNING 73, Safe Stop auto restart
Safe stopped. With automatic restart enabled, the motor
could start when the fault is cleared.
WARNING 76, Power unit setup
The required number of power units does not match the
detected number of active power units.
WARNING 77, Reduced power mode
The frequency converter is operating in reduced power
mode (less than the allowed number of inverter sections).
This warning is generated on power cycle when the
frequency converter is set to run with fewer inverters, and
remains on.
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 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 init a parameter.
ALARM 85, Dang fail PB
Profibus/Profisafe error.
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 by 14-53 Fan Monitor.
Troubleshooting
•
Cycle power to the frequency converter to
determine if the warning/alarm returns.
ALARM 243, Brake IGBT
This alarm is only for F-frame frequency converters. It is
equivalent to Alarm 27. The report value in the alarm log
indicates which power module generated the alarm:
1 = left most inverter module.
2 = middle inverter module in F12 or F3 frame
sizes.
2 = right inverter module in F10 or F11 frame
sizes.
MG21B202
Operating Instructions
®
PTC Thermistor
ALARM 244, Heat Sink temperature
This alarm is only for F-frame frequency converters. It is
equivalent to Alarm 29. The report value in the alarm log
indicates which power module generated the alarm.
ALARM 245, Heat Sink sensor
This alarm is only for F-frame frequency converters. It is
equivalent to Alarm 39. The report value in the alarm log
indicates which power module generated the alarm
Danfoss A/S © Rev. 2014-01-22 All rights reserved.
2 = second frequency converter from the left
inverter module in F14 frame size.
3 = right inverter module in F12 or F13 frame
sizes.
3 = third from the left intverter module in F14
frame size.
4 = far right inverter module in F14 frame size.
5 = rectifier module.
6 = right rectifier module in F14 frame size.
1 = left most inverter module.
2 = middle inverter module in F12 or F3 frame
sizes.
2 = right inverter module in F10 or F11 frame
sizes.
2 = second frequency converter from the left
inverter module in F14 frame size.
3 = right inverter module in F12 or F13 frame
sizes.
3 = third from the left intverter module in F14
frame size.
4 = far right inverter module in F14 frame size.
5 = rectifier module.
6 = right rectifier module in F14 frame size.
1 = left most inverter module.
2 = middle inverter module in F12 or F13 frame
sizes.
2 = right inverter module in F10 or F11 frame
sizes.
2 = second frequency converter from the left
inverter module in F14 frame size.
3 = right inverter module in F12 or F13 frame
sizes.
3 = third from the left inverter module in F14
frame size.
4 = far right inverter module in F14 frame size.
5 = rectifier module.
6 = right rectifier module in F14 frame size.
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