6 How to Programme the Low Harmonic Drive
1-23 Motor Frequency
Range:
Application
[20 - 1000 Hz]
dependent*
NB!
This parameter cannot be adjusted while the motor is running.
1-24 Motor Current
Range:
Application
[Application dependant]
dependent*
6
NB!
This parameter cannot be adjusted while the motor is running.
1-25 Motor Nominal Speed
Range:
Application
[100 - 60000 RPM]
dependent*
NB!
This parameter cannot be adjusted while the motor is running.
1-28 Motor Rotation Check
Option:
[0] *
Off
[1]
Enabled
Pressing [OK], [Back] or [Cancel] will dismiss the message and display a new message: "Press [Hand on] to start the motor. Press [Cancel] to abort".
Pressing [Hand on] starts the motor at 5 Hz in forward direction and the display shows: "Motor is running. Check if motor rotation direction is correct.
Press [Off] to stop the motor". Pressing [Off] stops the motor and resets par. 1-28
motor phase cables should be interchanged. IMPORTANT:
Mains power must be removed before disconnecting motor phase cables.
88
Function:
Select the motor frequency value from the motor nameplate data.For 87 Hz operation with 230/400
V motors, set the nameplate data for 230 V/50 Hz. Adapt par. 4-13
[RPM] and par. 3-03 Maximum Reference to the 87 Hz application.
Function:
Enter the nominal motor current value from the motor nameplate data. This data is used for cal-
culating motor torque, motor thermal protection etc.
Function:
Enter the nominal motor speed value from the motor nameplate data. This data is used for calcu-
lating automatic motor compensations.
Function:
Following installation and connection of the motor, this function allows the correct motor rotation
direction to be verified. Enabling this function overrides any bus commands or digital inputs, except
External Interlock and Safe Stop (if included).
Motor Rotation Check is not active.
Motor Rotation Check is enabled. Once enabled, Display shows:
"Note! Motor may run in wrong direction".
Motor Rotation Check . If motor rotation direction is incorrect, two
®
MG.16.A1.02 - VLT
is a registered Danfoss trademark
VLT HVAC Low Harmonic Drive Operating In-
Motor Speed High Limit
structions
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