—————— Instruction manual ——————
351
ANALOG INPUT 3
Pid feed back
Input of the loading cell;10V (20mA)=100%
I/O CONFIG Menu
————> Analog input
————> Analog input 3
Pid feed back
Closed loop En
Closing of the tension loop enabled (to be used with a loading cell).
Set the parameter
Closed loop En=
enable
Closed loop comp
Monitor for the present compensation on the output of the PID regulator used for the
loop closing.
DIGITAL INPUT
Programming of a digital input to enable the PID function
I/O CONFIG Menu
————> digital input
————> digital input 7:
enable PI-PD PID
Setting of Pid parameters
Set
Pid Source
as
PAD 1.
Pid source
=(8192+504)=8696
PARAMETERS
OPTION Menu
————> PID
————> Pid source
————> Pid source=8695
Set
PAD 1
=10000
(Pad 1 is in the “Special function” menu)
Set
Pid source gain
=1
Set
PID target
as the parameter
Closed loop comp
The parameter Closed loop comp has the decimal number 1208
In order to obtain the value to be entered add 8192 decimal (fixed offset )
PID target
=8192+1208=9400
Set
Pid out scale
Pid out scale=
(max .value of closed loop comp)/max oPID output
Pid out scale=
10000/10000=1
Set
PI top lim
and
Pi bottom lim
in order to have a 100% correction of its maximum value.
PI top lim=
1
Pi bottom lim=
-1
With this configuration the regulator output is positive and negative.
The gains of the several components have to be set experimentally with a loaded machine.
Summary of Contents for TPD32-EV-...-2B
Page 1: ... Instruction manual Industrial Application DC drives TPD32 EV ...
Page 372: ... TPD32 EV 372 9 BLOCK DIAGRAM 9 1 CONTROL BLOCK DIAGRAMS ...
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