Parameters: 4-** Limits/Warnings - Danfoss VLT AutomationDrive 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, after which the frequency converter stops and
generates an alarm message.
4-10 Motor Speed Direction
Option:
[0] Clockwise
[2] Both
*
directions
4-12 Motor Speed Low Limit [Hz]
Range:
0 Hz [ 0 -
*
500.0 Hz]
4-14 Motor Speed High Limit [Hz]
Range:
65 [ 0.1 -
Hz 500
*
Hz]
54
VLT
Function:
NOTICE
The setting in parameter 4-10 Motor
Speed Direction has impact on
parameter 1-73 Flying Start.
Only operation in clockwise direction is
allowed.
Operation in both clockwise and counter-
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
Maximum 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], and must not exceed the value in
parameter 4-19 Max Output Frequency.
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®
AutomationDrive FC 360
4-16 Torque Limit Motor Mode
Range:
Size related
*
4-17 Torque Limit Generator Mode
Range:
100 % [ 0 - 1000 %] This function limits the torque on the
*
4-18 Current Limit
Range:
Size
related
*
4-19 Max Output Frequency
Range:
Size
related 500
*
Hz]
Function:
[ 0 - 1000 %] This function limits the torque on
the shaft to protect the mechanical
installation.
Function:
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 synchronized motor
speed.
Function:
NOTICE
[ 0 -
This parameter cannot be adjusted
while the motor is running.
NOTICE
Maximum output frequency cannot
exceed 10% of the inverter switching
frequency (parameter 14-01 Switching
Frequency).
Provide 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).
MG06C702