Danfoss VLT HVAC User Manual

ALARM 50
AMA calibration failed:
Contact the local 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 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 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 resistance Rs and Rr are increased.
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.
VLT
®
HVAC Drive Operating Instructions 7. Troubleshooting
MG.11.A4.02 - 09.10.06. VLT
®
is a registered Danfoss trademark 127
7

Danfoss VLT HVAC Specifications

General

Enclosure Rating	IP20, IP21, IP54, IP55, IP66
Storage Temperature Range	-25°C to +70°C
Output Voltage Range	0-100% of supply voltage
Communication Protocols	Modbus RTU, BACnet, Ethernet/IP, Profibus DP
Ambient Temperature Range	-10°C to +50°C (without derating)
Relative Humidity	5% to 95% non-condensing
Altitude	Up to 1000 m without derating
Cooling Method	Air cooled
Application	HVAC systems, Pumps, Fans, Compressors
Voltage Range	200-240 V, 380-500 V, 525-600 V
Frequency Range	0 Hz to 590 Hz