Danfoss VLT HVAC Series User Manual

26-25 Term. X42/3 High Ref./Feedb. Value
Range: Function:
100.000 N/
A*
[-999999.999 - 999999.999 N/A] Enter the analog input scaling value that corresponds to the high voltage value set in par.
26-21
Terminal X42/3 High Voltage .
26-26 Term. X42/3 Filter Time Constant
Range: Function:
0.001 s* [0.001 - 10.000 s] 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.
26-27 Term. X42/3 Live Zero
Option: 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.
[0] Disabled
[1] * Enabled
26-30 Terminal X42/5 Low Voltage
Range: Function:
0.07 V* [0.00 - par. 6-31 V] 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 .
26-31 Terminal X42/5 High Voltage
Range: Function:
10.00 V* [par. 6-30 - 10.00 V] Enter the high voltage value. This analog input scaling value should correspond to the high refer-
ence/feedback value set in par.26-35
Term. X42/5 High Ref./Feedb. Value .
26-34 Term. X42/5 Low Ref./Feedb. Value
Range: Function:
0.000 N/A* [-999999.999 - 999999.999 N/A] Enter the analog input scaling value that corresponds to the low voltage value set in par.
26-30
Terminal X42/5 Low Voltage .
26-35 Term. X42/5 High Ref./Feedb. Value
Range: Function:
100.000 N/
A*
[-999999.999 - 999999.999 N/A] Enter the analog input scaling value that corresponds to the high voltage value set in par.
26-21
Terminal X42/3 High Voltage .
26-36 Term. X42/5 Filter Time Constant
Range: Function:
0.001 s* [0.001 - 10.000 s] 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.
3 Parameter Description VLT
®
HVAC Drive Programming Guide
3-254 MG.11.C6.22 - VLT
®
is a registered Danfoss trademark
3

Danfoss VLT HVAC Series Specifications

General

Protection Features	Overcurrent, Overvoltage, Undervoltage, Overtemperature, Short circuit
Communication Interfaces	Profibus, Ethernet
Cooling Method	Forced convection
Ambient Temperature	-10°C to +40°C
Enclosure Rating	IP20, IP21, IP55
Output Voltage	0 - 100% of supply voltage