WARNING 40, Overload of Digital Output Terminal 27
Check the load connected to terminal 27 or remove the short-circuit connection. Check
par. 5-00
Digital I/O Mode
and par. 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
par. 5-00
Digital I/O Mode
and par. 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
par. 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
par. 5-33
Term X30/7 Digi Out (MCB 101)
.
ALARM 46, Power card supply
The supply on the power card is out of range.
There are three power supplies generated by the switch mode power supply (SMPS) on the power
card: 24 V, 5V, +/- 18V. When powered with 24 VDC with the MCB 107 option, only the 24 V and
5 V supplies are monitored. When powered with three-phase AC line voltage, all three supplied
are monitored.
WARNING 47, 24 V supply low
The 24 VDC is measured on the control card. The external 24 VDC backup power supply may be
overloaded, otherwise contact your Danfoss supplier.
WARNING 48, 1.8 V supply low
The 1.8 Volt DC supply used on the control card is outside of allowable limits. The power supply
is measured on the control card.
WARNING 49, Speed limit
The speed is not within the specified range in par. 4-11
Motor Speed Low Limit [RPM]
and
par. 4-13
Motor Speed High Limit [RPM]
.
ALARM 50, AMA calibration failed
Contact your Danfoss supplier.
ALARM 51, AMA check Unom and Inom
The setting of motor voltage, motor current, and motor power is presumably wrong. Check the
settings.
ALARM 52, AMA low Inom
The motor current is too low. Check the settings.
ALARM 53, AMA motor too big
The motor is too big for the AMA to be carried out.
ALARM 54, AMA motor too small
The motor is too big for the AMA to be carried out.
ALARM 55, AMA parameter out of range
The parameter values found from the motor are outside acceptable range.
ALARM 56, AMA interrupted by user
The AMA has been interrupted by the user.
ALARM 57, AMA timeout
Try to start the AMA again a number of times, until the AMA is carried out. Please note that
repeated runs may heat the motor to a level where the resistances Rs and Rr are increased. In
most cases, however, this is not critical.
4 Troubleshooting
High Power Service Manual for VLT
®
FC Series
Adjustable Frequency Drives
4-16
MG.90.L1.22 - VLT
®
is a registered Danfoss trademark
4
Summary of Contents for VLT HVAC FC 100
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