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VLT
®
HVAC Drive Instruction Manual
6-20 Terminal 54 Low Voltage
Range:
0.07 V*
[Application dependant]
6-21 Terminal 54 High Voltage
Range:
10.00 V*
[Application dependant]
6-22 Terminal 54 Low Current
Range:
4.00 mA*
[Application dependant]
6-23 Terminal 54 High Current
Range:
20.00 mA*
[Application dependant]
6-24 Terminal 54 Low Ref./Feedb. Value
Range:
0.000 N/A*
[-999999.999 - 999999.999 N/A]
6-25 Terminal 54 High Ref./Feedb. Value
Range:
100.000 N/
[-999999.999 - 999999.999 N/A]
A*
6-26 Terminal 54 Filter Time Constant
Range:
0.001 s*
[0.001 - 10.000 s]
6-27 Terminal 54 Live Zero
Option:
[0]
Disabled
[1] *
Enabled
Function:
Enter the low voltage value. This analog input scaling value should correspond to the low reference/
feedback value, set in par. 6-24
Terminal 54 Low Ref./Feedb. Value
Function:
Enter the high voltage value. This analog input scaling value should correspond to the high refer-
ence/feedback value set in par. 6-25
Function:
Enter the low current value. This reference signal should correspond to the low reference/feedback
Terminal 54 Low Ref./Feedb. Value
value, set in par. 6-24
to activate the Live Zero Timeout Function in par. 6-01
Function:
Enter the high current value corresponding to the high reference/feedback value set in
Terminal 54 High Ref./Feedb. Value
par. 6-25
Function:
Enter the analog input scaling value that corresponds to the low voltage/low current value set in
Terminal 54 Low Voltage
par. 6-20
Function:
Enter the analog input scaling value that corresponds to the high voltage/high current value set in
Terminal 54 High Voltage
par. 6-21
Function:
Enter the time constant. This is a first-order digital low pass filter time constant for suppressing
electrical noise in terminal 54. A high time constant value improves dampening but also increases
the time delay through the filter.
This parameter cannot be adjusted while the motor is running.
Function:
This parameter makes it possible to disable the Live Zero monitoring. For example, this to be used
if the analog outputs are used as part of a de-central I/O system (e.g., when used not as part of
any adjustable frequency drive related control functions, but for feeding a building management
system with data).
MG.11.AB.22 - VLT
®
is a registered Danfoss trademark
7 How to Program the Adjustable Frequency
.
Terminal 54 High Ref./Feedb. Value
. The value must be set at >2 mA in order
Live Zero Timeout Function
.
Terminal 54 Low Current
and par. 6-22
Terminal 54 High Current
and par. 6-23
Drive
.
.
7
.
.
7-29
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