GE Industrial Solutions DV-300 DC Drive Users Manual - Manual (Page 334)

GEI-100332Ga
——— FUNCTION DESCRIPTION ———
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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