Danfoss VLT AutomationDrive FC 301 Operating Instructions Manual page 46

Maintenance, Diagnostics an...
No. Text
1793 Motor derived parameters not transferred correctly
to DSP.
1794 Power data not transferred correctly at power-up
to DSP.
1795 The DSP has received too many unknown SPI
telegrams.
1796 RAM copy error.
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.
7 7
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 the Danfoss supplier or
Danfoss Service Department.
Table 7.4 Internal Fault Codes
ALARM 39, Heat sink sensor
No feedback from the heat sink 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.
WARNING 40, Overload of digital output terminal 27
Check the load connected to terminal 27 or remove the
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 the
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 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 14-80 Option Supplied by
External 24VDC [0] No. A change in 14-80 Option Supplied
by External 24VDC requires a power cycle.
44
Operating Instructions
ALARM 45, Earth fault 2
Ground fault.
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:
When powered with 24 V DC with the MCB 107 option,
only the 24 V and 5 V supplies are monitored. When
powered with 3-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. This alarm
appears when the detected voltage of terminal 12 is <18
V.
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 power 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
4-11 Motor Speed Low Limit [RPM] and 4-13 Motor Speed
High Limit [RPM], the frequency converter shows a warning.
When the speed is below the specified limit in 1-86 Trip
Speed Low [RPM] (except when starting or stopping), the
frequency converter trips.
ALARM 50, AMA calibration failed
Contact the Danfoss supplier or Danfoss Service.
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.
Danfoss A/S © Rev. 07/2014 All rights reserved.
•
Check for proper grounding and loose
connections.
•
Check for proper wire size.
•
Check the motor cables for short circuits or
leakage currents.
•
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 power supply is used, verify proper
supply power.
•
Check for a defective control card.
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MG33AP02