Danfoss VLT AutomationDrive 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: Function:
Select the motor speed direction(s) required. Use this parameter to prevent unwanted reversing.
When par. 1-00
Configuration Mode is set to Process [3], par. 4-10 Motor Speed Direction is set to
Clockwise [0] as default. The setting in par. 4-10 Motor Speed Direction does not limit options for
setting par. 4-13
Motor Speed High Limit [RPM] .
This parameter cannot be adjusted while the motor is running.
[0] * Clockwise The reference is set to CW rotation. Reversing input (Default term 19) must be open.
[1] Counter clockwise 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
Clockwise
Direction
[2] Both directions Allows the motor to rotate in both directions.
4-11 Motor Speed Low Limit [RPM]
Range: Function:
Application
dependent*
[Application dependant] 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] .
4-12 Motor Speed Low Limit [Hz]
Range: Function:
Application
dependent*
[Application dependant] 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] .
Application
dependent*
[Application dependant] 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] .
4-13 Motor Speed High Limit [RPM]
Range: Function:
Application
dependent*
[Application dependant] 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
setting in par. 4-11
Motor Speed Low Limit [RPM] .
NB!
Max. output frequency cannot exceed 10% of the inverter switching frequency (par. 14-01
Switching Frequency ).
FC 300 Programming Guide 3 Parameter descriptions
MG.33.M8.02 - VLT
®
is a registered Danfoss trademark 85
3

Danfoss VLT AutomationDrive FC 300 Specifications

General

Brand	Danfoss
Model	VLT AutomationDrive FC 300
Category	DC Drives
Language	English