Danfoss VLT AutomationDrive FC 302 Instruction Manual page 58

Maintenance, Diagnostics an...
Number
5125
5126
5376–6231 Internal fault. Contact the Danfoss supplier or
Table 7.4 Internal Fault Codes
ALARM 39, Heatsink sensor
No feedback from the heatsink temperature sensor.
The signal from the IGBT thermal sensor is not available on
the power card. The problem could be on the power card,
on the gate drive card, or the ribbon cable between the
power card and gate drive card.
7 7
WARNING 40, Overload of digital output terminal 27
Check the load connected to terminal 27 or remove the
short-circuit connection. Check parameter 5-00 Digital I/O
Mode and parameter 5-01 Terminal 27 Mode.
WARNING 41, Overload of digital output terminal 29
Check the load connected to terminal 29 or remove the
short-circuit connection. Check parameter 5-00 Digital I/O
Mode and parameter 5-02 Terminal 29 Mode.
WARNING 42, Overload of digital output on X30/6 or
overload of digital output on X30/7
For terminal X30/6, check the load connected to terminal
X30/6 or remove the short circuit connection. Check
parameter 5-32 Term X30/6 Digi Out (MCB 101).
For terminal X30/7, check the load connected to terminal
X30/7 or remove the short circuit connection. Check
parameter 5-33 Term X30/7 Digi Out (MCB 101).
ALARM 43, Ext. supply
MCB 113 Ext. Relay Option is mounted without external 24
V DC. Either connect an ext. 24 V DC supply or specify that
no external supply is used via parameter 14-80 Option
Supplied by External 24VDC [0] No. A change in
parameter 14-80 Option Supplied by External 24VDC requires
a power cycle.
ALARM 45, Ground fault 2
Ground fault.
Troubleshooting
•
Check for proper grounding and loose
connections.
•
Check for proper wire size.
•
Check the motor cables for short circuits or
leakage currents.
56
Text
Option in slot C0: Hardware incompatible with the
control board hardware.
Option in slot C1: Hardware incompatible with the
control board hardware.
Danfoss Service Department.
Danfoss A/S © 06/2015 All rights reserved.
®
VLT AutomationDrive FC 302
ALARM 46, Power card supply
The supply on the power card is out of range. There are
thee supplies generated by the switch mode supply (SMPS)
on the power card:
•
•
•
When powered with 24 V DC with VLT
MCB 107, only the 24 V and 5 V supplies are monitored.
When powered with three-phase AC line voltage, all three
supplies are monitored.
Troubleshooting
•
•
•
•
WARNING 47, 24 V supply low
The supply on the power card is out of range. There are
thee supplies generated by the switch mode supply (SMPS)
on the power card:
•
•
•
Troubleshooting
•
WARNING 48, 1.8 V supply low
The 1.8 V DC supply used on the control card is outside of
the allowable limits. The supply is measured on the control
card. Check for a defective control card. If an option card is
present, check for overvoltage.
WARNING 49, Speed limit
When the speed is outside of the specified range in
parameter 4-11 Motor Speed Low Limit [RPM] and
parameter 4-13 Motor Speed High Limit [RPM], the
adjustable frequency drive shows a warning. When the
speed is below the specified limit in parameter 1-86 Trip
Speed Low [RPM] (except when starting or stopping), the
adjustable frequency drive trips.
ALARM 50, AMA calibration failed
Contact the Danfoss supplier or Danfoss Service
Department.
ALARM 51, AMA check U
The settings for motor voltage, motor current, and motor
power are wrong. Check the settings in parameters 1–20 to
1–25.
24 V
5 V
±18 V
®
Check for a defective power card.
Check for a defective control card.
Check for a defective option card.
If a 24 V DC supply is used, verify proper supply
power.
24 V
5 V
±18 V
Check for a defective power card.
and I
nom nom
24 V DC Supply
MG34U422