Danfoss VLT Refrigeration Drive FC 103 Operating Instructions Manual page 75

Diagnostics and Troubleshoo...
Number Text
2330 The power size information between the power
cards does not match.
2561 No communication from DSP to ATACD.
2562 No communication from ATACD to DSP (state
running).
2816 Stack overflow control board module.
2817 Scheduler slow tasks.
2818 Fast tasks.
2819 Parameter thread.
2820 LCP stack overflow.
2821 Serial port overflow.
2822 USB port overflow.
2836 cfListMempool is too small.
3072–5122 The parameter value is outside its limits.
5123 Option in slot A: Hardware incompatible with the
control board hardware.
5124 Option in slot B: Hardware incompatible with the
control board hardware.
5125 Option in slot C0: Hardware incompatible with the
control board hardware.
5126 Option in slot C1: Hardware incompatible with the
control board hardware.
5376–6231 Out of memory.
Table 7.1 Internal Fault, Code Numbers
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 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 X30/6, check the load connected to X30/6 or remove
the short circuit connection. Check parameter 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 parameter 5-33 Term
X30/7 Digi Out (MCB 101).
ALARM 45, Earth fault 2
Ground fault.
MG16N102
Operating Instructions
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, and
±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 3-phase mains voltage, all 3 supplies
are monitored.
WARNING 47, 24 V supply low
The supply on the power card is out of range.
There are 3 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 frequency
converter 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 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.
ALARM 52, AMA low I
The motor current is too low. Check the settings in
parameter 4-18 Current Limit.
ALARM 53, AMA motor too big
The motor is too big for the AMA to operate.
ALARM 54, AMA motor too small
The motor is too small for the AMA to operate.
Danfoss A/S © 08/2015 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.
and I
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