Danfoss VLT AQUA Drive FC 200 Operating Instructions Manual page 182

VLT AQUA Low Harmonic Drive Operating In-
structions
9.2.1 Fault messages
WARNING 1, 10 volts low
The control card voltage is below 10 V from terminal 50.
Remove some of the load from terminal 50, as the 10 V supply is over-
loaded. Max. 15 mA or minimum 590 Ω.
WARNING/ALARM 2, Live zero error
The signal on terminal 53 or 54 is less than 50% of the value set in par.
6-10, 6-12, 6-20 or 6-22 respectively.
WARNING/ALARM 4, Mains phase loss
A phase is missing on the supply side, or the mains voltage imbalance is
too high.
WARNING 5, DC link voltage high
The intermediate circuit voltage (DC) is higher than the high voltage
warning limit. The unit is still active.
WARNING 6, DC link voltage low
The intermediate circuit voltage (DC) is below the under-voltage limit of
the control system. The unit is still active.
WARNING/ALARM 7, DC overvoltage
If the intermediate circuit voltage exceeds the limit, the unit trips.
WARNING/ALARM 8, DC under voltage
If the intermediate circuit voltage (DC) drops below the under voltage
limit, the frequency converter checks if a 24 V backup supply is connec-
ted. If not, the unit trips. Check that the mains voltage matches the
nameplate specification.
WARNING/ALARM 13, Over Current
the unit current limit has been exceeded.
ALARM 14, Earth (ground) fault
There is a discharge from the output phases to earth. Turn off the unit
and correct the earth fault.
ALARM 15, Incomp. Hardware
A mounted option is not handled by the present Control Card SW / HW.
ALARM 16, Short circuit
There is a short-circuit in the output. Turn off the unit and correct the
error.
WARNING/ALARM 17, Control word timeout
There is no communication to the unit.
The warning will only be active when par. 8-04
Function is NOT set to OFF.
Possible correction: Increase par. 8-03. Change par. 8-04
WARNING 23, Internal fan fault
Internal fans have failed due to defect hardware or fans not mounted.
WARNING 24, External fan fault
External fans have failed due to defect hardware or fans not mounted.
ALARM 29, Heatsink temp
The maximum temperature of the heatsink has been exceeded. The tem-
perature fault will not be reset until the temperature falls below a defined
heatsink temperature.
ALARM 33, Inrush fault
Check whether a 24 Volt external DC supply has been connected.
WARNING/ALARM 34, Fieldbus communication fault
The fieldbus on the communication option card is not working.
WARNING/ALARM 35, Option Fault:
Contact your supplier.
ALARM 38, Internal fault
Contact your Danfoss supplier.
ALARM 39, Heatsink sensor
No feedback from the heatsink temperature sensor.
WARNING 40, Overload of Digital Output Terminal 27
Check the load connected to terminal 27 or remove short-circuit connec-
tion.
WARNING 41, Overload of Digital Output Terminal 29
Check the load connected to terminal 29 or remove short-circuit connec-
tion.
WARNING 42, Overload of Digital Output on X30/6 or Overload
of Digital Output on X30/7
For X30/6, check the load connected to X30/6 or remove short-circuit
connection.
For X30/7, check the load connected to X30/7 or remove short-circuit
connection.
WARNING 43, Ext. Supply (option)
The external 24 V DC supply voltage on the option is not valid.
ALARM 46, Power card supply
The supply on the power card is out of range.
WARNING 47, 24 V supply low
Contact your Danfoss supplier.
WARNING 48, 1.8 V supply low
Contact your Danfoss supplier.
WARNING/ALARM/TRIP 65, Control card over temperature
Control card over temperature: The cutout temperature of the control
card is 80° C.
WARNING 66, Heatsink temperature low
This warning is based on the temperature sensor in the IGBT module.
Troubleshooting:
The heatsink temperature measured as 0° C could indicate that the tem-
perature sensor is defective causing the fan speed to increase to the
maximum. If the sensor wire between the IGBT and the gate drive card
Control Word Timeout
is disconnected, this warning would result. Also, check the IGBT thermal
sensor.
ALARM 67, Option module configuration has changed
One or more options have either been added or removed since the last
power-down.
ALARM 68, Safe stop activated
Safe stop has been activated. To resume normal operation, apply 24 VDC
to terminal 37, then send a reset signal (via Bus, Digital I/O, or by press-
ing the reset key. See parameter 5-19, Terminal 37 Safe Stop.
ALARM 69, Power card temperature
The temperature sensor on the power card is either too hot or too cold.
ALARM 70, Illegal FC Configuration
Actual combination of control board and power board is illegal.
Warning 73, Safe stop auto restart
Safe stopped. Note that with automatic restart enabled, the motor may
start when the fault is cleared.
®
MG.20.T1.02 - VLT is a registered Danfoss trademark
9 Troubleshooting
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