Parameters: Limits/Warnings - Danfoss VLT AutomationDrive FC 300 Programming Manual

FC 300 Programming Guide

3.6 Parameters: Limits/Warnings

3.6.1 4-** Limits and Warnings
Parameter group for configuring limits and warnings.
3.6.2 4-1* Motor Limits
Define torque, current and speed limits for the motor, and the reaction of the frequency converter when the limits are exceeded.
A limit may generate a message on the display. A warning will always generate a message on the display or on the fieldbus. A monitoring function may
initiate a warning or a trip, upon which the frequency converter will stop and generate an alarm message.
4-10 Motor Speed Direction
Option:
[0] * Clockwise
[1] Counter clockwise
[2] Both directions
4-11 Motor Speed Low Limit [RPM]
Range:
Application [Application dependant]
dependent*
4-12 Motor Speed Low Limit [Hz]
Range:
Application [Application dependant]
dependent*
Application [Application dependant]
dependent*
4-13 Motor Speed High Limit [RPM]
Range:
Application [Application dependant]
dependent*
NB!
Max. output frequency cannot exceed 10% of the inverter switching frequency (par. 14-01
Function:
Select the motor speed direction(s) required. Use this parameter to prevent unwanted reversing.
Configuration Mode
When par. 1-00
Clockwise
[0] as default. The setting in par. 4-10
Motor Speed High Limit [RPM]
setting par. 4-13
This parameter cannot be adjusted while the motor is running.
The reference is set to CW rotation. Reversing input (Default term 19) must be open.
The reference is set to CCW rotation. Reversing input (Default term 19) must be closed. If Reversing
is required with 'Reverse' input is open the motor direction can be changed by par. 1-06
Direction
Allows the motor to rotate in both directions.
Function:
Enter the minimum limit for motor speed. The Motor Speed Low Limit can be set to correspond to
the manufacturer's recommended minimum motor speed. The Motor Speed Low Limit must not
exceed the setting in par. 4-13 Motor Speed High Limit [RPM]
Function:
Enter the minimum limit for motor speed. The Motor Speed Low Limit can be set to correspond to
the minimum output frequency of the motor shaft. The Motor Speed Low Limit must not exceed the
setting in par. 4-14 Motor Speed High Limit [Hz]
Enter the minimum limit for motor speed. The Motor Speed Low Limit can be set to correspond to
the minimum output frequency of the motor shaft. The Motor Speed Low Limit must not exceed the
Motor Speed High Limit [Hz]
setting in par. 4-14
Function:
Enter the maximum limit for motor speed. The Motor Speed High Limit can be set to correspond to
the manufacturer's maximum rated motor speed. The Motor Speed High Limit must exceed the
Motor Speed Low Limit [RPM]
setting in par. 4-11
®
MG.33.M8.02 - VLT is a registered Danfoss trademark
3 Parameter descriptions
Process Motor Speed Direction
is set to [3], par. 4-10
Motor Speed Direction
.
.
.
.
.
Switching Frequency
3
is set to
does not limit options for
Clockwise
).
85