Danfoss VLT Refrigeration Drive FC 103 Programming Manual page 142

Parameter Description
21-13 Ext. 1 Reference Source
Option:
3 3
[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
21-14 Ext. 1 Feedback Source
Option:
[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
[100] Bus Feedback 1
[101] Bus Feedback 2
[102] Bus feedback 3
[110] Air Pres. to Flow
21-15 Ext. 1 Setpoint
Range:
0
ExtPID1Unit
*
140
VLT
Function:
This parameter defines which input
on the frequency converter that
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 VLT
Purpose I/O Card MCB 101.
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
controller. Analog input X30/11 and
analog input X30/12 refer to inputs
®
on the VLT General Purpose I/O
Card MCB 101.
Function:
[ par. 21-11 - The setpoint reference is used
par. 21-12 in extended 1 closed loop. Ext.1
ExtPID1Unit]
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®
Refrigeration Drive FC 103
21-15 Ext. 1 Setpoint
Range:
21-16 Ext. 1 PID Conversion
®
General
Select the conversion method for integrated PID 1.
Option:
[0]
*
[1]
[2]
21-17 Ext. 1 Reference [Unit]
Range:
0 ExtPID1Unit
21-18 Ext. 1 Feedback [Unit]
Range:
0 ExtPID1Unit
21-19 Ext. 1 Output [%]
Range:
0 % [0 - 100 %] Readout of the output value for the closed-
*
3.17.4 21-2* Closed Loop 1 PID
21-20 Ext. 1 Normal/Inverse Control
Option:
[0] Normal Reduces the output when feedback is higher than
*
[1] Inverse Increase the output when feedback is higher than
21-21 Ext. 1 Proportional Gain
Range:
0.01 [0 -
*
10]
Function:
setpoint is added to the value
from the Ext.1 Reference source
selected in parameter 21-13 Ext.
1 Reference Source.
Linear
Square root
Pressure to temperature
Function:
[-999999.999 - Readout of the reference
*
999999.999 value for the closed-loop
ExtPID1Unit] 1 controller.
Function:
[-999999.999 - Readout of the feedback
*
999999.999 value for the closed-loop
ExtPID1Unit] 1 controller.
Function:
loop 1 controller.
Function:
the reference.
the reference.
Function:
NOTICE
Always set parameter 20-14 Maximum
Reference/Feedb. before setting the values
for the PID controller in parameter group
20-9* PID Controller.
The proportional gain indicates the number of
times the error between the setpoint and the
feedback signal is to be applied.
Function:
MG16H202