Danfoss VLT HVAC Design Guide

5.2.2 Electrical installation and control cables
Illustration 5.8: Diagram showing all electrical terminals. (Terminal 37 present for units with Safe Stop Function only.)
Terminal number Terminal description Parameter number Factory default
1+2+3 Terminal 1+2+3-Relay1 5-40 No operation
4+5+6 Terminal 4+5+6-Relay2 5-40 No operation
12 Terminal 12 Supply - +24 V DC
13 Terminal 13 Supply - +24 V DC
18 Terminal 18 Digital Input 5-10 Start
19 Terminal 19 Digital Input 5-11 No operation
20 Terminal 20 - Common
27 Terminal 27 Digital Input/Output 5-12/5-30 Coast inverse
29 Terminal 29 Digital Input/Output 5-13/5-31 Jog
32 Terminal 32 Digital Input 5-14 No operation
33 Terminal 33 Digital Input 5-15 No operation
37 Terminal 37 Digital Input - Safe Stop
42 Terminal 42 Analog Output 6-50 Speed 0-HighLim
53 Terminal 53 Analog Input 3-15/6-1*/20-0* Reference
54 Terminal 54 Analog Input 3-15/6-2*/20-0* Feedback
Table 5.3: Terminal connections
VLT
®
HVAC Drive Design Guide 5 How to Install
MG.11.B9.02 - VLT
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Danfoss VLT HVAC Specifications

General

Enclosure Rating	IP20, IP21, IP54, IP55, IP66
Storage Temperature Range	-25°C to +70°C
Output Voltage Range	0-100% of supply voltage
Communication Protocols	Modbus RTU, BACnet, Ethernet/IP, Profibus DP
Ambient Temperature Range	-10°C to +50°C (without derating)
Relative Humidity	5% to 95% non-condensing
Altitude	Up to 1000 m without derating
Cooling Method	Air cooled
Application	HVAC systems, Pumps, Fans, Compressors
Voltage Range	200-240 V, 380-500 V, 525-600 V
Frequency Range	0 Hz to 590 Hz