Danfoss VLT HVAC Series Programming Manual page 278

3 Parameter Description
26-25 Term. X42/3 High Ref./Feedb. Value
Range:
100.000 N/ [-999999.999 - 999999.999 N/A]
A*
26-26 Term. X42/3 Filter Time Constant
Range:
3
0.001 s* [0.001 - 10.000 s]
26-27 Term. X42/3 Live Zero
Option:
[0] Disabled
[1] * Enabled
26-30 Terminal X42/5 Low Voltage
Range:
0.07 V* [0.00 - par. 6-31 V]
26-31 Terminal X42/5 High Voltage
Range:
10.00 V* [par. 6-30 - 10.00 V]
26-34 Term. X42/5 Low Ref./Feedb. Value
Range:
0.000 N/A* [-999999.999 - 999999.999 N/A]
26-35 Term. X42/5 High Ref./Feedb. Value
Range:
100.000 N/ [-999999.999 - 999999.999 N/A]
A*
26-36 Term. X42/5 Filter Time Constant
Range:
0.001 s* [0.001 - 10.000 s]
3-254
Function:
Enter the analog input scaling value that corresponds to the high voltage value set in par.
26-21 Terminal X42/3 High Voltage .
Function:
Enter the time constant. This is a first-order digital low pass filter time constant for suppressing
noise in terminal X42/3. 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 enable the live zero monitoring, for example where the analog
input is a part of the adjustable frequency drive control, rather than being used as part of a decentral
I/O system, such as a building management system.
Function:
Enter the low voltage value. This analog input scaling value should correspond to the low reference/
feedback value set in par.26-34 Term. X42/5 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.26-35
Function:
Enter the analog input scaling value that corresponds to the low voltage value set in par.
Terminal X42/5 Low Voltage
26-30 .
Function:
Enter the analog input scaling value that corresponds to the high voltage value set in par.
Terminal X42/3 High Voltage
26-21 .
Function:
Enter the time constant. This is a first-order digital low pass filter time constant for suppressing
noise in terminal X42/5. 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.
MG.11.C6.22 - VLT ® is a registered Danfoss trademark
VLT ® HVAC Drive Programming Guide
.
Term. X42/5 High Ref./Feedb. Value .