Parameters: Limits/Warnings - Danfoss FC 300 Programming Manual

2. How to Programme

2.7. Parameters: Limits/Warnings

2.7.1. 4-** Limits and Warnings
2
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:
* Clockwise
[0]
[1] Counter clockwise
[2] Both directions
4-11 Motor Speed Low Limit [RPM]
Range:
*
0 RPM [0 - par. 4-13]
4-12 Motor Speed Low Limit [Hz]
Range:
*
0 Hz [0 - par. 4-14]
4-13 Motor Speed High Limit [RPM]
Range:
3600 RPM [Par. 4-11 - 60.000]
NB!
Max. output frequency cannot exceed 10% of the inverter switching frequency (par. 14-01).
4-14 Motor Speed High Limit [Hz]
Range:
*
Size related [0 - 1000 Hz]
74
Function:
Select the motor speed direction(s) required. Use this parameter to prevent unwanted reversing. When par.
Configuration Mode Process
1-00 is set to
4-10 does not limit options for setting par.4-13.
This parameter cannot be adjusted while the motor is running.
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
Motor Speed High Limit [RPM]
in par. 4-13
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
Speed High Limit [Hz]
.
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 setting in par. 4-11
Motor Speed Low Limit [RPM] .
Function:
Enter the maximum limit for motor speed. The Motor Speed High Limit can be set to correspond to the
manufacturer's recommended maximum frequency of the motor shaft. The Motor Speed High Limit must exceed
the setting in par. 4-12 Motor Speed Low Limit [Hz]
parameters set in the Main Menu and depending on default settings dependant on global geographical location.
®
MG.33.M3.02 - VLT is a registered Danfoss trademark
FC 300 Programming Guide
Clockwise
[3], par. 4-10 is set to [0] as default. The setting in par.
.
. Only par. 4-11 or 4-12 will be displayed depending on other
Motor