Danfoss VLT HVAC Series, Programming Manual, Page: 210 / 338

21-12 Ext. 1 Maximum Reference
Range: Function:
100.000 Ex-
tPID1Unit* [par. 21-11 - 999999.999 Ex-
tPID1Unit] 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
.
NOTE!
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*.
21-13 Ext. 1 Reference Source
Option: Function:
This parameter defines which input on the adjustable frequency drive should be treated as the
source of the reference signal for the closed-loop 1 controller. Analog input X30/11 and Analog input
X30/12 refer to inputs on the General Purpose I/O.
[0] * No function
[1] Analog input 53
[2] Analog input 54
[7] Pulse input 29
[8] Pulse input 33
[20] Digital pot.meter
[21] Analog input X30/11
[22] Analog input X30/12
[23] Analog Input X42/1
[24] Analog Input X42/3
[25] Analog Input X42/5
[30] Ext. Closed-loop 1
[31] Ext. Closed-loop 2
[32] Ext. Closed-loop 3
3 Parameter Description VLT ® HVAC Drive Programming Guide
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MG.11.C6.22 - VLT ® is a registered Danfoss trademark
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