Parameters: 4-** Limits/Warnings - Danfoss VLT Automation Drive FC 360 Programming Manual

Parameter Descriptions

4.5 Parameters: 4-** Limits/Warnings

4.5.1 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 in the display. A warning
always generates a message in the display or on the
4 4
fieldbus. A monitoring function may initiate a warning or a
trip, upon which the frequency converter stops and
generates an alarm message.
4-10 Motor Speed Direction
Option:
[0] Clockwise
[2] Both directions Operation in both clockwise and counter-
*
NOTICE
The setting in parameter 4-10 Motor Speed Direction has
impact on parameter 1-73 Flying Start.
4-12 Motor Speed Low Limit [Hz]
Range:
0 Hz [ 0 -
*
400.0 Hz]
4-14 Motor Speed High Limit [Hz]
Range:
65 [ 0.1 -
Hz 500 Hz]
*
4-16 Torque Limit Motor Mode
Range:
Size related
*
46
Function:
Only operation in clockwise direction is
allowed.
clockwise directions are allowed.
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
parameter 4-14 Motor Speed High Limit [Hz].
Function:
NOTICE
Max. output frequency cannot exceed
10% of the inverter switching frequency
(parameter 14-01 Switching Frequency).
Enter the maximum limit for motor speed. The
motor speed high limit can be set to correspond
to the manufacturer's recommended maximum
of the motor shaft. The motor speed high limit
must exceed the value in parameter 4-12 Motor
Speed Low Limit [Hz].
Function:
[ 0 - 1000 %] This function limits the torque on
the shaft to protect the mechanical
installation.
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®
VLT AutomationDrive FC 360
4-17 Torque Limit Generator Mode
Range:
100 %
*
4-18 Current Limit
Range:
Size
related
*
4-19 Max Output Frequency
Range:
Size
related
*
4.5.2 4-2* Limit Factors
4-20 Torque Limit Factor Source
Select an analog input for scaling the settings in
parameter 4-16 Torque Limit Motor Mode and
parameter 4-17 Torque Limit Generator Mode from 0% to 100% (or
inverse). The signal levels corresponding to 0% and 100% are
defined in the analog input scaling, for example, parameter
group 6-1* Analog Input 1. This parameter is only active when
parameter 1-00 Configuration Mode is set to [0] Open Loop or [1]
Speed Closed Loop.
Option:
[0]
*
[2]
[4]
[6]
[8]
Function:
[ 0 - 1000 %] This function limits the torque on the
shaft to protect the mechanical instal-
lation.
Function:
[ 0 - This is a true current limit function that
1000 %] continues in the oversynchronous range.
However, due to field weakening, the
motor torque at current limit drops
accordingly when the voltage increase
stops above the synchronised motor
speed.
Function:
NOTICE
[ 0 -
500
This parameter cannot be adjusted
Hz]
while the motor is running.
NOTICE
Max. output frequency cannot exceed
10% of the inverter switching frequency
(parameter 14-01 Switching Frequency).
Provides a final limit on the output frequency
for improved safety in applications at risk of
overspeeding. This limit is final in all configu-
rations (independent of the setting in
parameter 1-00 Configuration Mode).
No function
Analog in 53
Analog in 53 inv
Analog in 54
Analog in 54 inv
Function:
MG06C602