Danfoss VLT User Manual

EXAMPLE 2:
Variable= FEEDBACK, range= -200% to +200%
Range needed for output= 0–100%
Output signal 0 or 4 mA is needed at 0% (50% of range) - set par.6-51
Terminal 42 Output Min Scale to 50%
Output signal 20 mA is needed at 100% (75% of range) - set par.6-52
Terminal 42 Output Max Scale to 75%
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EXAMPLE 3:
Variable value= REFERENCE, range= Min ref - Max ref
Range needed for output= Min ref (0%) - Max ref (100%), 0–10 mA
Output signal 0 or 4 mA is needed at Min ref - set par.6-51
Terminal 42 Output Min Scale to 0%
Output signal 10 mA is needed at Max ref (100% of range) - set par.6-52
Terminal 42 Output Max Scale to 200%
(20 mA / 10 mA x 100%=200%).
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6 How to program the adjustable frequency
drive
VLT
®
HVAC Drive Instruction Manual
6-42 MG.11.A9.22 - VLT
®
is a registered Danfoss trademark
6

Danfoss VLT Specifications

General

Frequency	50/60 Hz
Enclosure	IP20, IP21, IP55, IP66
Series	VLT
Control Technique	Flux Vector Control
Output Voltage	0-Vinput
Control Method	Fieldbus
Communication Interface	PROFIBUS, CANopen
Protection Features	Overload, Overvoltage, Undervoltage, Short Circuit, Ground Fault
Cooling Method	Liquid Cooled
Storage Temperature	-25°C to +70°C
Relative Humidity	5-95% non-condensing
Altitude	Up to 1000m (3280ft) without derating, up to 4000m (13120ft) with derating
Operating Temperature	-10°C to +50°C (14°F to 122°F)