Parameters: 4-** Limits/Warnings - Danfoss VLT AutomationDrive FC 300 Series Programming Manual

Parameter Descriptions

3.6 Parameters: 4-** Limits/Warnings

3.6.1 4-1* Motor Limits
Define torque, current and speed limits for the motor, and
the reaction of the frequency converter when the limits are
3 3
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:
[0] Clockwise
*
[1] Counter
clockwise
[2] Both
directions
NOTE
This parameter cannot be adjusted while the motor is
running.
4-11 Motor Speed Low Limit [RPM]
Range:
Size
related 4-13 RPM]
*
4-12 Motor Speed Low Limit [Hz]
Range:
Size related
*
par. 4-14
Hz]
66
Function:
Select the motor speed direction(s) required.
Use this parameter to prevent unwanted
reversing. When 1-00 Configuration Mode is
set to Process [3], 4-10 Motor Speed Direction is
set to Clockwise [0] as default. The setting in
4-10 Motor Speed Direction does not limit
options for setting 4-13 Motor Speed High
Limit [RPM].
The reference is set to CW rotation. Reversing
input (Default term 19) must be open.
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 1-06 Clockwise Direction
Allows the motor to rotate in both directions.
Function:
[ 0 - par. 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 4-13 Motor Speed High Limit
[RPM].
Function:
[ 0.0 - 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
MG33ME02 - VLT
®
VLT AutomationDrive Programmming Guide
4-12 Motor Speed Low Limit [Hz]
Range:
4-13 Motor Speed High Limit [RPM]
Range:
Size
related
*
NOTE
Max. output frequency cannot exceed 10% of the inverter
switching frequency (14-01 Switching Frequency).
4-14 Motor Speed High Limit [Hz]
Range:
Size
related
*
NOTE
Max. output frequency cannot exceed 10% of the inverter
switching frequency (14-01 Switching Frequency).
4-16 Torque Limit Motor Mode
Range:
Size related
Application
dependent
NOTE
Changing 4-16 Torque Limit Motor Mode when 1-00 Configu-
ration Mode is set to Speed open loop [0], 1-66 Min. Current
at Low Speed is automatically readjusted.
NOTE
The torque limit reacts on the actual, non-filtrated torque,
including torque spikes. This is not the torque that is seen
from the or the as that is filtered.
®
is a registered Danfoss trademark
Function:
exceed the setting in 4-14 Motor Speed
High Limit [Hz].
Function:
[ par. 4-11 Enter the maximum limit for motor
- 60000. speed. The Motor Speed High Limit
RPM] can be set to correspond to the
manufacturer's maximum rated motor
speed. The Motor Speed High Limit
must exceed the setting in 4-11 Motor
Speed Low Limit [RPM].
Function:
[par. Enter the maximum limit for motor speed.
4-12 - The Motor Speed High Limit can be set to
par. 4-19 correspond to the manufacturer's
Hz] recommended maximum of the motor
shaft. The Motor Speed High Limit must
exceed the in 4-12 Motor Speed Low Limit
[Hz]. Only 4-13 Motor Speed High Limit
[RPM] or 4-14 Motor Speed High Limit [Hz]
will be displayed depending on other
parameters in the Main Menu and
depending on default settings dependant
on global location.
Function:
[ 0.0 - 1000.0 %] This function limits the
*
[Application torque on the shaft to
dependant] protect the mechanical
*
installation.