Danfoss FC 300

2.7. Parameters: Limits/Warnings
2.7.1. 4-** Limits and Warnings
Parameter group for configuring limits and warnings.
2.7.2. 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 is set to Clockwise [0] as
default. The setting in par. 4-10 does not limit options for setting
par.4-13.
This parameter cannot be adjusted while the motor is running.
[0]
*
Clockwise
[1] Counter clockwise
[2] Both directions
4-11 Motor Speed Low Limit [RPM]
Range: Function:
0 RPM
*
[0 - par. 4-13] Enter the minimum limit for motor speed. The Motor Speed Low
Limit can be set to correspond to the manufacturer’s recom-
mended 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:
0 Hz
*
[0 - par. 4-14] 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:
3600
RPM
[Par. 4-11 - 60.000] Enter the maximum limit for motor speed. The Motor Speed
High Limit can be set to correspond to the manufacturer’s max-
imum rated motor speed. The Motor Speed High Limit must
exceed the setting in par. 4-11
Motor Speed Low Limit [RPM] .
2. How to Programme FC 300 Programming Guide
86 MG.33.M2.02 - VLT
®
is a registered Danfoss trademark
2