Danfoss VLT AQUA Drive FC 202 Operating Manual page 68

Maintenance, Diagnostics, a...
WARNING
HIGH VOLTAGE
Drives contain high voltage when connected to AC mains
input, DC supply, or load sharing. Failure to use qualified
personnel to install, start up, and maintain the drive can
result in death or serious injury.
•
Disconnect power before proceeding.
Troubleshooting
•
Remove the power from the drive and check
motor phase W.
ALARM 33, Inrush fault
Too many power-ups have occurred within a short time
period.
Troubleshooting
•
Let the unit cool to operating temperature.
•
Check potential DC-link fault to ground.
WARNING/ALARM 34, Fieldbus communication fault
8 8
The fieldbus on the communication option card is not
working.
WARNING/ALARM 35, Option fault
An option alarm is received. The alarm is option-specific.
The most likely cause is a power-up or a communication
fault.
WARNING/ALARM 36, Mains failure
This warning/alarm is only active if the supply voltage to
the drive system is lost and parameter 14-10 Mains Failure
is not set to option [0] No Function.
•
Check the fuses to the drive system and the
mains supply to the unit.
•
Check that mains voltage conforms to product
specifications.
•
Check that the following conditions are not
present:
Alarm 307, Excessive THD(V), alarm 321, Voltage
imbalance, warning 417, Mains undervoltage, or
warning 418, Mains overvoltage is reported if any
of the listed conditions are true:
-
-
-
-
ALARM 37, Phase imbalance
There is a current imbalance between the power units.
66
VLT® AQUA Drive FC 202
The 3-phase voltage magnitude drops
below 25% of the nominal mains
voltage.
Any single-phase voltage exceeds 10%
of the nominal mains voltage.
Percent of phase or magnitude
imbalance exceeds 8%.
Voltage THD exceeds 10%.
Danfoss A/S © 01/2017 All rights reserved.
ALARM 38, Internal fault
When an internal fault occurs, a code number defined in
Table 8.4 is shown.
Troubleshooting
•
Cycle power.
•
Check that the option is properly installed.
•
Check for loose or missing wiring.
It may be necessary to contact the Danfoss supplier or
service department. Note the code number for further
troubleshooting directions.
Number Text
0 The serial port cannot be initialized. Contact the
Danfoss supplier or Danfoss Service Department.
256–259, The power EEPROM data is defective or too old.
266, 268 Replace power card.
512–519 Internal fault. Contact the Danfoss supplier or
Danfoss Service Department.
783 Parameter value outside of minimum/maximum
limits.
1024–1284 Internal fault. Contact the 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.
1301 Option SW in slot C0 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).
1317 Option SW in slot C0 is not supported (not
allowed).
1318 Option SW in slot C1 is not supported (not
allowed).
1360–2819 Internal fault. Contact the Danfoss supplier or
Danfoss Service Department.
2561 Replace control card.
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.
5127 Illegal option combination (2 options of the same
kind mounted, or encoder in E0 and resolver in E1
or similar).
MG22A102