Danfoss VLT HVAC Drive FC 102 Programming Guide

5.18.4 18-2* Motor Readouts
This parameter group contains more references and feedback readouts including Safe Option speeds.
Parameter 18-20 Commanded Position
Table 981: Parameter 18-20 Commanded Position
18-20 Commanded Position
Default value: 0 Custom- ReadoutUnit2
Parameter type: Range, -2147483648 - 2147483647
CustomReadoutUnit2
Setup: All setups
Conversion index: 0
Data type: Int32
Change during operation: True
N O T I C E
This parameter is only available in software version 48.XX.
Shows the position reference for the position PI controller which is calculated every millisecond by the profile generator. Comman-
ded position in position units as defined in parameter group 17-0* Position Scaling.
Parameter 18-21 Master Position
Table 982: Parameter 18-21 Master Position
18-21 Master Position
Default value: 0 Custom- ReadoutUnit2
Parameter type: Range, -2147483648 - 2147483647
CustomReadoutUnit2
Setup: All setups
Conversion index: 0
Data type: Int32
Change during operation: True
N O T I C E
This parameter is only available in software version 48.XX.
Shows the actual master position based on the source selected in parameter 3-16 Reference Resource 2. Master position is converted
to follower position units by the master scale set in parameter 3-22 Master Scale Numerator and parameter 3-23 Master Scale Denomi-
nator.
Parameter 18-23 Virtual Master Pos.
Table 983: Parameter 18-23 Virtual Master Pos.
18-23 Virtual Master Pos.
Default value: 0 Custom- ReadoutUnit2
Parameter type: Range, -2147483648 - 2147483647
CustomReadoutUnit2
Setup: All setups
Conversion index: 0
Data type: Int32
Change during operation: True
N O T I C E
This parameter is only available in software version 48.XX.
Shows the current virtual master position which is calculated by the virtual master profile generator. Virtual master position in posi-
tion units as defined in parameter group 17-0* Position Scaling. Virtual master position is converted to follower position units by the
master scale set in parameter 3-22 Master Scale Numerator and parameter 3-23 Master Scale Denominator.
AU275636650261en-000101 / 130R0334 | 541Danfoss A/S © 2022.12
Parameter Descriptions
VLT AutomationDrive FC 301/302
Programming Guide

Danfoss VLT HVAC Drive FC 102 Specifications

General

Enclosure	IP20, IP21, IP55
Ambient Temperature Range	-10°C to +40°C
Storage Temperature Range	-25°C to +70°C
Relative Humidity	5-95% (non-condensing)
Communication Protocols	Modbus RTU, BACnet, Profibus
Certifications	CE, UL, cUL
Control Principle	PWM
Cooling Method	Forced air cooling
Input Voltage	200-240V, 380-480V, 525-600V
Control Modes	sensorless vector control, closed loop vector control