Danfoss VLT Programming Guide

[120] GPM
[121] gal/s
[122] gal/min
[123] gal/h
[124] CFM
[125] ft³/s
[126] ft³/min
[127] ft³/h
[130] lb/s
[131] lb/min
[132] lb/h
[140] ft/s
[141] ft/min
[145] ft
[160] °F
[170] psi
[171] lb/in²
[172] in WG
[173] ft WG
[174] in Hg
[180] HP
21-11 Ext. 1 Minimum Reference
Range: Function:
0.000 Ex-
tPID1Unit*
[Application dependant] Select the minimum for the Closed Loop 1 Controller.
21-12 Ext. 1 Maximum Reference
Range: Function:
100.000 Ex-
tPID1Unit*
[Application dependant] Select the maximum for the Closed Loop 1 Controller.
The dynamics of the PID controller will depend on the value set in this parameter. Please see also
par. 21-21
Ext. 1 Proportional Gain .
NB!
Always set the desired value for par. 21-12
Ext. 1 Maximum Reference before setting the values for the PID controller in par.
20-9*CL-9#.
3 Parameter Description VLT
®
HVAC Drive Programming Guide
192 MG.11.C9.02 - VLT
®
is a registered Danfoss trademark
3

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)