Name: Danfoss VLT HVAC Series
Brand: Danfoss
Rating: 5 (1 reviews)

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3-14 Preset Relative Reference

Range: Function:

0.00 %* [-100.00 - 100.00 %] The actual reference, X, is increased or decreased with the percentage Y, set in par.3-14

Preset

Relative Reference

. This results in the actual reference Z. Actual reference (X) is the sum of the

inputs selected in par.3-15

Reference 1 Source

, par.3-16

Reference 2 Source

, par.3-17

Reference

3 Source

and par.8-02

Control Source

3-15 Reference 1 Source

Option: Function:

Select the reference input to be used for the first 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

VLT

HVAC Drive Programming Guide 3 Parameter Description

MG.11.C6.22 - VLT

is a registered Danfoss trademark

3-35

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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