Danfoss VLT User Manual

WARNING 42, Overload of Digital Output On X30/7:
Check the load connected to X30/7 or remove short circuit connection.
Check par. 5-33
Term X30/7 Digi Out (MCB 101) .
ALARM 46, Pwr. card supply:
The supply on the power card is out of range.
WARNING 47, 24 V supply low:
The external 24 V DC backup power supply may be overloaded, otherwise
contact your Danfoss supplier.
ALARM 48, 1.8 V supply low:
Contact your Danfoss supplier.
WARNING 49, Speed limit:
The speed has been limited by 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 pre-
sumably 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 small for the AMA to be carried out.
ALARM 55, AMA par. out of range:
The par. 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.
WARNING/ALARM 58, AMA internal fault:
Contact your Danfoss supplier.
WARNING 59, Current limit:
The current is higher than the value in par. 4-18
Current Limit .
WARNING 60, External Interlock:
External Interlock has been activated. To resume normal operation, apply
24 V DC to the terminal programmed for external interlock and reset the
adjustable frequency drive (via bus, digital I/O or by pressing [Reset]).
WARNING/ALARM 61, Tracking Error:
Tracking error. Contact your supplier.
WARNING 62, Output Frequency at Maximum Limit:
The output frequency is limited by the value set in par. 4-19
Max Output
Frequency
WARNING 64, Voltage Limit:
The load and speed combination demands 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 as 32°F [0°C]. This could indicate
that the temperature sensor is defective and thus the fan speed is in-
creased to the maximum in case the power part or control card is very
hot.
If the temperature is below 59°F [15°C], the warning will be present.
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:
Safe Stop has been activated. To resume normal operation, apply 24 V
DC to terminal 37 then send a reset signal (via bus, digital I/O or by
pressing [Reset]).
ALARM 69, Pwr. Card Temp:
Power card overtemperature.
ALARM 70, Illegal FC Configuration:
The current control board and power board combination is illegal.
ALARM 90, Feedback Mon.:
ALARM 91, Analog Input 54 Wrong Settings:
Switch S202 must be set in position OFF (voltage input) when a KTY sen-
sor is connected to analog input terminal 54.
ALARM 92, No-Flow:
A no load situation has been detected for the system. See parameter
group 22-2*.
ALARM 93, Dry Pump:
A no-flow situation and high speed indicates that the pump has run dry.
See parameter group 22-2*.
ALARM 94, End of Curve:
Feedback stays lower than the setpoint, which may indicate a leakage in
the pipe system. See parameter group 22-5*.
ALARM 95, Broken Belt:
Torque is below the torque level set for no load indicating a broken belt.
See parameter group 22-6*.
ALARM 96, Start Delayed:
Start of the motor has been delayed due to short cycle protection being
active. See parameter group 22-7*.
ALARM 250, New Spare Part:
The power or switch mode power supply has been exchanged. The ad-
justable frequency drive type code must be restored in EEPROM. Select
the correct type code in par. 14-23
Typecode Setting according to the
label on unit. Remember to select ‘Save to EEPROM’ to complete.
ALARM 251, New Type Code:
The adjustable frequency drive has a new type code.
7 Troubleshooting VLT
®
HVAC Drive Instruction Manual
7-6 MG.11.A9.22 - VLT
®
is a registered Danfoss trademark
7

Danfoss VLT Specifications

General

Brand	Danfoss
Model	VLT
Category	DC Drives
Language	English