Danfoss VLT series Quick Guide

Cable lengths and cross sections
Max. motor cable length, screened/armoured (EMC correct installation) See 1.8.2 EMC Test Results
Max. motor cable length, unscreened/unarmoured 50 m
Max. cross section to motor, mains*
Cross section DC terminals for filter feedback on enclosure frame H1-H3, I2, I3, I4 4 mm
2
/11 AWG
Cross section DC terminals for filter feedback on enclosure frame H4-H5 16 mm
2
/6 AWG
Maximum cross section to control terminals, rigid wire 2.5 mm
2
/14 AWG)
Maximum cross section to control terminals, flexible cable 2.5 mm
2
/14 AWG)
Minimum cross section to control terminals 0.05 mm
2
/30 AWG
*See 1.8.1 Mains Supply 3x380-480 V AC for more information
Digital inputs
A)
Programmable digital inputs 4
Terminal number 18, 19, 27, 29
Logic PNP or NPN
Voltage level 0-24 V DC
Voltage level, logic '0' PNP <5 V DC
Voltage level, logic '1' PNP >10 V DC
Voltage level, logic '0' NPN >19 V DC
Voltage level, logic '1' NPN <14 V DC
Maximum voltage on input 28 V DC
Input resistance, R
i
Approx. 4 k
Digital output
Programmable digital outputs 2
Terminal number 27, 29
1)
Voltage level at digital output 0-24 V DC
Max. output current (sink or source) 40 mA
1)
Terminals 27 and 29 can also be programmed as digital inputs.
Analog inputs
A)
Number of analog inputs 2
Terminal number 53, 54
Terminal 53 mode Parameter 6-19: 1=voltage, 0=current
Terminal 54 mode Parameter 6-29: 1=voltage, 0=current
Voltage level 0-10 V
Input resistance, R
i
approx. 10 kΩ
Max. voltage 20 V
Current level 0/4 to 20 mA (scalable)
Input resistance, R
i
<500 Ω
Max. current 29 mA
Analog output
A)
Number of programmable analog outputs 2
Terminal number 42, 45
1)
Current range at analog output 0/4-20 mA
Max. load to common at analog output 500 Ω
Max. voltage at analog output 17 V
Accuracy on analog output Max. error: 0.4% of full scale
Resolution on analog output 10 bit
1)
Terminal 42 and 45 can also be programmed as digital outputs.
Quick Guide
VLT
®
HVAC Basic Drive Cascade Controller Quick Guide
32 MG18F402 - VLT
®
is a registered Danfoss trademark
11

Danfoss VLT series Specifications

General

Series	VLT
Category	DC Drives
Output Voltage	0-100% of input voltage
Protection Features	Overvoltage, Undervoltage, Overcurrent, Overtemperature, Short Circuit, Ground Fault
Communication Interfaces	Profibus, CANopen
Enclosure Rating	IP20, IP21, IP55, IP66
Cooling Method	Forced Air Cooling, Convection Cooling
Control Mode	Sensorless Vector, Closed Loop Vector
Ambient Temperature	-10°C to +50°C (14°F to 122°F)