3.5 Main Menu - Limits/Warnings - Group 4
3.5.1 4-1* Motor Limits
Define current and speed limits for the motor, and the
reaction of the adjustable frequency drive when the limits
are exceeded.
4-10 Motor Speed Direction
Option:
Function:
[0] Clockwise
Only operation in a clockwise direction will
be allowed.
[2] Both directions Operation in both a clockwise and counter-
clockwise direction will be allowed.
NOTE!
The setting in
has impact on
1-73 Flying Start
.
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
4-14 Motor Speed High Limit [Hz]
.
4-14 Motor Speed High Limit [Hz]
Range:
Function:
65 Hz
*
[ 0.1 -
400.0 Hz]
Enter the maximum limit for motor speed.
4-14 Motor Speed High Limit [Hz]
can be set
to match the manufacturer's recommended
max. motor speed. The Motor Speed High
Limit must exceed the value in
.
NOTE!
Max. output frequency cannot exceed 10% of the inverter
switching frequency (
).
NOTE!
Motor Speed High Limit cannot be set higher than
.
4-18 Current Limit
Range:
Function:
110 %
*
[0 - 300 %]
4-19 Max Output Frequency
Range:
Function:
Size related
*
[ 0.0 - 400 Hz]
3.5.2 4-4* Adjustable Warnings 2
4-40 Warning Frequency Low
Range:
Function:
0.00
Hz
*
[0.0 Hz-
Depends on the
value of
4-41
Warning
Frequency High
]
Use this parameter to set a lower limit
for the frequency range.
When the motor speed falls below this
limit, the display reads SPEED LOW.
Warning bit 10 is set in
16-94 Ext.
Status Word
. Output Relay can be
configured to indicate this warning.
LCP warning light does not light when
this parameter set limit is reached.
4-41 Warning Frequency High
Range:
Function:
400.0
Hz
*
[Depends on
the value of
4-40
Warning
Frequency Low
-
400.0 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
16-94 Ext.
Status Word
. Output Relay can be
configured to indicate this warning.
LCP warning light does not light
when this parameter set limit is
reached.
3.5.3 4-5* Adj. Warnings
Define adjustable warning limits for current. Warnings are
shown on the display, programmed output or serial bus.
4-50 Warning Current Low
Range:
Function:
0 A
*
[ 0 - 194.0
A]
Enter the I
LOW
value. When the motor current
falls below this limit, a bit in the drive's status
word will be set. This value can also be
programmed to produce a signal on the
digital output or the relay output.
4-51 Warning Current High
Range:
Function:
Size
related
*
[ 0.0 -
194.0 A]
Enter the I
HIGH
value. When the motor
current exceeds this limit, a bit in the
drive's status word will be set. This
value can also be programmed to
produce a signal on the digital output
or the relay output.
Parameters
VLT
®
HVAC Basic Drive Programming Guide
MG18B222 - VLT
®
is a registered Danfoss trademark
3-17
3
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