ALARM 52
AMA low Inom:
The motor current is too low. Check the set-
tings.
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 small for the AMA to be car-
ried out.
ALARM 55
AMA par. out of range:
The par. values found from the motor are out-
side the 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 in-
creased. In most cases, however, this is not
critical.
ALARM 58
AMA internal fault:
Contact the local Danfoss supplier.
WARNING 59
Current limit:
Contact the local Danfoss supplier.
WARNING 62
Output Frequency at Maximum Limit:
The output frequency is higher than the value
set in par. 4-19.
WARNING 64
Voltage Limit:
The load and speed combinations demand a
motor voltage higher than the actual DC link
voltage.
WARNING/ALARM/TRIP 65
Control Card Overtemperature:
Control card overtemperature: The cut-out
temperature of the control card is 176°F [80°
C].
WARNING 66
Heatsink Temperature Low:
The heatsink temperature is measured at 32°
F [0°C]. This could indicate that the temper-
ature sensor is defective, and that the fan
speed has increased to maximum, if the pow-
er part or control card is very hot.
ALARM 67
Option Configuration has Changed:
One or more options has either been added or
removed since the last power-down.
ALARM 68
Safe Stop Activated:
Safe Stop has been activated. To resume nor-
mal operation, apply 24 V DC to terminal 37,
then send a reset signal (via bus, digital I/O,
or by pressing [RESET]). For correct and safe
use of the Safe Stop function, follow the rela-
ted information and instructions in the Design
Guide
ALARM 70
Illegal Frequency Configuration:
Current combination of control board and
power board is illegal.
ALARM 80
Initialization to Default Value:
Parameter settings are initialized to default
setting after a manual (three-finger) reset.
VLT
®
HVAC Drive Instruction Manual 7. Troubleshooting
MG.11.A4.22 - VLT
®
is a registered Danfoss trademark
137
7
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