Danfoss VLT AQUA Drive FC 202, Programming Manual

Page: 74 / 294

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
exceeded.
A limit may generate a message in the display. A warning
always generates a message in the display or on the
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: Function:
Selects the motor speed direction required.
When
parameter 1-00 Configuration Mode is
set to [3] Closed loop , the parameter default
is changed to [0] Clockwise . If both directions
are selected, running in counterclockwise
direction cannot be selected from the LCP.
[0]
*
Clockwise
[1] Counter
clockwise
[2] Both
directions
4-11 Motor Speed Low Limit [RPM]
Range: Function:
Size
related
*
[ 0 - par.
4-13
RPM] Enter the minimum limit for motor speed
in RPM. The motor speed low limit can be
set to correspond to the minimum motor
speed recommended by the manufacturer.
The motor speed low limit must not
exceed the setting in
parameter 4-13 Motor Speed High Limit
[RPM]
.
4-12 Motor Speed Low Limit [Hz]
Range: Function:
Size
related
*
[ 0 -
par. 4-14
Hz] Enter the minimum limit for motor speed
in Hz. The motor speed low limit can be
set to correspond to the minimum output
frequency of the motor shaft. The speed
low limit must not exceed the setting in
parameter 4-14 Motor Speed High Limit [Hz] .
4-13 Motor Speed High Limit [RPM]
Range: Function:
Size
related
*
[ 0 -
60000
RPM]
NOTICE
Any changes in parameter 4-13 Motor
Speed High Limit [RPM] reset the value
in parameter 4-53 Warning Speed High
to the value set in
parameter 4-13 Motor Speed High Limit
[RPM]
.
NOTICE
Maximum output frequency cannot
exceed 10% of the inverter switching
frequency (
parameter 14-01 Switching
Frequency ).
Enter the maximum limit for motor speed in
RPM. The motor speed high limit can be set
to correspond to the manufacturer’s
maximum rated motor. The motor speed
high limit must exceed the setting in
parameter 4-11 Motor Speed Low Limit [RPM] .
The parameter name appears as either
parameter 4-11 Motor Speed Low Limit [RPM]
or parameter 4-12 Motor Speed Low Limit [Hz] ,
depending on:
•
The settings of other parameters in
the
Main Menu .
•
Default settings based on
geographical location.
4-14 Motor Speed High Limit [Hz]
Range: Function:
Size
related
*
[ .1 -
par.
4-19
Hz] Enter the maximum limit for motor speed in
Hz.
Parameter 4-14 Motor Speed High Limit
[Hz] can be set to correspond to the
manufacturer's recommended maximum
motor speed. The motor speed high limit
must exceed the value in
parameter 4-12 Motor Speed Low Limit [Hz] .
The output frequency must not exceed 10%
of the switching frequency
(
parameter 14-01 Switching Frequency ).
Parameter Description
VLT
®
AQUA Drive FC 202
72 Danfoss A/S © 05/2018 All rights reserved. MG20OB02
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