Danfoss VLT User Manual

Par. No. # Parameter description Default value
(SR = Size related)
4 set-up Change during oper-
ation
Conver-
sion index
Type
21-5* Ext. CL 3 Ref./Fb. 21-50 Ext. 3 Ref./Feedback Unit [1] % All set-ups TRUE - Uint8 21-51 Ext. 3 Minimum Reference 0.000 ExtPID3Unit All set-ups TRUE -3 Int32
21-52 Ext. 3 Maximum Reference 100.000 ExtPID3Unit All set-ups TRUE -3 Int32
21-53 Ext. 3 Reference Source [0] No function All set-ups TRUE - Uint8
21-54 Ext. 3 Feedback Source [0] No function All set-ups TRUE - Uint8
21-55 Ext. 3 Setpoint 0.000 ExtPID3Unit All set-ups TRUE -3 Int32
21-57 Ext. 3 Reference [Unit] 0.000 ExtPID3Unit All set-ups TRUE -3 Int32
21-58 Ext. 3 Feedback [Unit] 0.000 ExtPID3Unit All set-ups TRUE -3 Int32
21-59
Ext. 3 Output [%] 0 % All set-ups TRUE 0 Int32
21-6* Ext. CL 3 PID 21-60 Ext. 3 Normal/Inverse Control [0] Normal All set-ups TRUE - Uint8 21-61 Ext. 3 Proportional Gain 0.01 N/A All set-ups TRUE -2 Uint16
21-62 Ext. 3 Integral Time 10000.00 s All set-ups TRUE -2 Uint32
21-63 Ext. 3 Differentation Time 0.00 s All set-ups TRUE -2 Uint16
21-64 Ext. 3 Dif. Gain Limit 5.0 N/A All set-ups TRUE -1 Uint16
VLT
®
HVAC Drive Instruction Manual
6 How to program the adjustable frequency
drive
MG.11.A9.22 - VLT
®
is a registered Danfoss trademark 6-79
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)