Danfoss VLT AQUA Drive FC 202 Design Manual page 201

General Specifications and ...
WARNING/ALARM 36, Mains failure
This warning/alarm is only active if the supply voltage to
the frequency converter is lost and 14-10 Mains Failure is
not set to [0] No Function. Check the fuses to the
frequency converter and mains power supply to the unit.
ALARM 38, Internal fault
When an internal fault occurs, a code number defined in
Table 8.34 is displayed.
Troubleshooting
•
Cycle power
•
Check that the option is properly installed
•
Check for loose or missing wiring
If necessary, contact the Danfoss supplier or service
department. Note the code number for further trouble-
shooting directions.
No. Text
0 Serial port cannot be initialised. Contact the
Danfoss supplier or Danfoss service department.
256-258 Power EEPROM data is defective or too old.
512-519 Internal fault. Contact your Danfoss supplier or
Danfoss Service Department.
783 Parameter value outside of min/max limits.
1024-1284 Internal fault. Contact your Danfoss supplier or the
Danfoss Service Department.
1299 Option SW in slot A is too old.
1300 Option SW in slot B is too old.
1302 Option SW in slot C1 is too old.
1315 Option SW in slot A is not supported (not
allowed).
1316 Option SW in slot B is not supported (not
allowed).
1318 Option SW in slot C1 is not supported (not
allowed).
1379-2819 Internal fault. Contact your Danfoss supplier or
Danfoss Service Department.
2820 LCP stack overflow.
2821 Serial port overflow.
2822 USB port overflow.
3072-5122 Parameter value is outside its limits.
5123 Option in slot A: Hardware incompatible with
control board hardware.
5124 Option in slot B: Hardware incompatible with
control board hardware.
5125 Option in slot C0: Hardware incompatible with
control board hardware.
5126 Option in slot C1: Hardware incompatible with
control board hardware.
5376-6231 Internal fault. Contact your Danfoss supplier or
Danfoss Service Department.
Table 8.34 Internal Fault Codes
ALARM 39, Heat sink sensor
No feedback from the heatsink temperature sensor.
MG20Z202
Design Guide
The signal from the IGBT thermal sensor is not available on
the power card. The problem could be on the power card,
gate drive card, or ribbon cable between the power card
and gate drive card.
WARNING 40, Overload of digital output terminal 27
Check the load connected to terminal 27 or remove short-
circuit connection. Check 5-00 Digital I/O Mode and
5-01 Terminal 27 Mode.
WARNING 41, Overload of digital output terminal 29
Check the load connected to terminal 29 or remove short-
circuit connection. Check 5-00 Digital I/O Mode and
5-02 Terminal 29 Mode.
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
the short-circuit connection. Check 5-32 Term X30/6 Digi
Out (MCB 101).
For X30/7, check the load connected to X30/7 or remove
the short-circuit connection. Check 5-33 Term X30/7 Digi
Out (MCB 101).
ALARM 45, Earth fault 2
Earth (ground) fault on start up.
Troubleshooting
•
•
•
ALARM 46, Power card supply
The supply on the power card is out of range.
There are 3 power supplies generated by the switch mode
power supply (SMPS) on the power card: 24 V, 5 V, +/- 18
V. When powered with 24 V DC with the MCB 107 option,
only the 24 V and 5 V supplies are monitored. When
powered with three phase mains voltage, all 3 supplies are
monitored.
Troubleshooting
•
•
•
•
WARNING 47, 24 V supply low
The 24 V DC is measured on the control card. The external
24 V DC backup power supply may be overloaded. If not
contact Danfoss.
WARNING 48, 1.8 V supply low
The 1.8 V DC supply used on the control card is outside of
allowable limits. The power supply is measured on the
control card. Check for a defective control card. If an
option card is present, check for an overvoltage condition.
Danfoss A/S © Rev. 06/2014 All rights reserved.
Check for proper earthing (grounding) and loose
connections.
Check for proper wire size.
Check motor cables for short-circuits or leakage
currents.
Check for a defective power card.
Check for a defective control card.
Check for a defective option card.
If a 24 V DC power supply is used, verify proper
supply power.
8 8
199