Operating instructions

21-10 Ext. 1 Ref./Feedback Unit
Option: Function:
[75] mm Hg
[80] kW
[120] GPM
[121] gal/s
[122] gal/min
[123] gal/h
[124] CFM
[125] ft/s
[126] ft/min
[127] ft/h
[130] lb/s
[131] lb/min
[132] lb/h
[140] ft/s
[141] ft/min
[145] ft
[160] °F
[170] psi
[171] lb/in
[172] in WG
[173] ft WG
[174] in Hg
[180] HP
21-11 Ext. 1 Minimum Reference
Range: Function:
0.000 ExtPID1Unit * [Application
dependant]
Select the minimum for
the Closed Loop 1 Control-
ler.
21-12 Ext. 1 Maximum Reference
Range: Function:
100.000
ExtPID1Unit
*
[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.
NOTE
Always set the desired value for par. 21-12 Ext. 1
Maximum Reference before setting the values for the PID
controller in parameter group 20-9*.
21-13 Ext. 1 Reference Source
Option: Function:
This parameter defines which input on
the frequency converter should be
treated as the source of the reference
signal for the Closed Loop 1 Controller.
Analog input X30/11 and Analog input
21-13 Ext. 1 Reference Source
Option: Function:
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
[29] Analog Input X48/2
[30] Ext. Closed Loop 1
[31] Ext. Closed Loop 2
[32] Ext. Closed Loop 3
21-14 Ext. 1 Feedback Source
Option: Function:
This parameter defines which input
on the frequency converter should be
treated as the source of the feedback
signal for the Closed Loop 1 control-
ler. 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
[3] Pulse input 29
[4] Pulse input 33
[7] Analog input X30/11
[8] Analog input X30/12
[9] Analog Input X42/1
[10] Analog Input X42/3
[11] Analog Input X42/5
[15] Analog Input X48/2
[100] Bus feedback 1
[101] Bus feedback 2
[102] Bus feedback 3
21-15 Ext. 1 Setpoint
Range: Function:
0.000
ExtPID1Unit
*
[-999999.999 -
999999.999
ExtPID1Unit]
The setpoint reference is used
in extended 1 closed loop. Ext.
1 Setpoint is added to the
value from the Ext.1 Reference
source selected in
par. 21-13 Ext. 1 Reference
Source.
Parameter Description
VLT
®
HVAC Drive Programming Guide
134 MG.11.CA.02 - VLT
®
is a registered Danfoss trademark
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