Danfoss VLT HVAC Series User Manual

3-16 Reference 2 Source
Option: Function:
Select the reference input to be used for the second reference signal. par.3-15 Reference 1
Source
, par.3-16 Reference 2 Source and par.3-17 Reference 3 Source define up to three different
reference signals. The sum of these reference signals defines the actual reference.
This parameter cannot be adjusted while the motor is running.
[0] No function
[1] Analog input 53
[2] Analog input 54
[7] Pulse input 29
[8] Pulse input 33
[20] * Digital pot.meter
[21] Analog input X30/11
[22] Analog input X30/12
[23] Analog Input X42/1
[24] Analog Input X42/3
[25] Analog Input X42/5
[30] Ext. Closed-loop 1
[31] Ext. Closed-loop 2
[32] Ext. Closed-loop 3
3-17 Reference 3 Source
Option: Function:
Select the reference input to be used for the third reference signal. par.3-15 Reference 1 Source ,
par.3-16
Reference 2 Source and par.3-17 Reference 3 Source define up to three different reference
signals. The sum of these reference signals defines the actual reference.
This parameter cannot be adjusted while the motor is running.
[0] * No function
[1] Analog input 53
[2] Analog input 54
[7] Pulse input 29
[8] Pulse input 33
[20] Digital pot.meter
[21] Analog input X30/11
[22] Analog input X30/12
[23] Analog Input X42/1
[24] Analog Input X42/3
[25] Analog Input X42/5
[30] Ext. Closed-loop 1
[31] Ext. Closed-loop 2
[32] Ext. Closed-loop 3
3 Parameter Description VLT
®
HVAC Drive Programming Guide
3-36 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