4.5 Main Menu - Limits/Warnings - Group 4
4.5.1 4-1* Motor Limits
Define current and speed limits for the motor, and the
reaction of the frequency converter when the limits are
exceeded.
4-10 Motor Speed Direction
Option:
Function:
[0]
Clockwise
NOTICE
The setting in
has impact on
parameter 1-73 Flying Start
.
Only operation in clockwise direction is
allowed.
[2]
*
Both
directions
Operation in both clockwise and counter-
clockwise directions are allowed.
4-12 Motor Speed Low Limit [Hz]
Range:
Function:
0 Hz
*
[ 0 -
400.0 Hz]
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 speed low limit must
not exceed the setting in
parameter 4-14 Motor Speed High Limit [Hz]
.
4-14 Motor Speed High Limit [Hz]
Range:
Function:
Size
related
*
[ 0.1 -
400.0 Hz]
Enter the maximum limit for motor speed.
It can be set to match the recommended
maximum motor speed. The motor speed
high limit must exceed the value in
parameter 4-12 Motor Speed Low Limit [Hz]
.
Motor speed high limit cannot be set
higher than
.
4-18 Current Limit
Range:
Function:
Size
related
*
[0 -
300
%]
Enter the current limit for motor and generator
operation (in % of rated motor current). If the
value is higher than maximum rated output
from frequency converter, current is still limited
to the maximum output current of the
frequency converter. If a setting in
parameter 1-00 Configuration Mode
to
parameter 1-25 Motor Nominal Speed
is
changed,
parameter 4-18 Current Limit
is not
automatically reset to the default setting.
4-19 Max Output Frequency
Range:
Function:
Size
related
*
[ 0 -
400
Hz]
Enter the maximum output frequency, which
defines the absolute limit on the frequency
converter output frequency for improved
safety in applications where unintended
overspeeding must be avoided. This absolute
limit applies to all configurations and is
independent of the setting in
parameter 1-00 Configuration Mode
4.5.2 4-4* Adjustable Warnings 2
4-40 Warning Freq. Low
Range:
Function:
Size
related
*
[ 0 -
400
Hz]
Use this parameter to set a lower limit for the
frequency range.
When the motor speed drops below this limit,
the display reads
SPEED LOW
. Warning bit 10
is set in
parameter 16-94 Ext. Status Word
. The
output relay or the digital output can be
configured to indicate this warning. The LCP
warning indicator light is not turned on when
this parameter set limit is reached.
4-41 Warning Freq. High
Range:
Function:
Size
related
*
[ 0 -
400
Hz]
Use this parameter to set a higher limit for
the frequency range.
When the motor speed exceeds this limit, the
display reads
SPEED HIGH
. Warning bit 9 is set
in
parameter 16-94 Ext. Status Word
. The
output relay or the digital output can be
configured to indicate this warning. The LCP
warning indicator light is not turned on when
this parameter set limit is reached.
4.5.3 4-5* Adj. Warnings
Define adjustable warning limits for current. Warnings are
shown on the display, programmed output, or fieldbus.
4-50 Warning Current Low
Range:
Function:
0 A
*
[ 0 - 194.0
A]
Enter the I
LOW
value. When the motor current
drops below this limit, a bit in the status word
is set. This value can also be programmed to
produce a signal on the digital output or the
relay output.
Parameters
Programming Guide
MG03N202
Danfoss A/S © 11/2015 All rights reserved.
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