—————— Instruction manual ——————
313
Pressure control for pumps and extruders
M
Extruder
Speed reference
E
DRIVE
-10V
+10V
Feed-back
Pressure
setting
Pressure
transducer
Set
Feed-fwd
0... +10V
Figure 6.16.3.14: Pressure control for pumps and extruder
Machine Data:
Nominal speed of the extruder motor Vn = 3000rpm
Pressure transducer 0... +10V
The extruder slave drive must be sent analog signals concerning speed reference, the pressure transducer, the
setting of potentiometer for pressure (supplied between 0V... -10V) and the digital commands concerning the
enabling of the PID control.
The regulator output must be sent to the speed reference 1.
Setting of the drive: (below are only the parameters regarding the PID function)
Input/output
Set
Analog input 1
as input for the pressure transducer.
Analog input 1 / Select input 1= PID Feed-back
Set
Analog input 2
as input for the ramp block. The output of the ramp block must be used as speed reference.
(feed- forward).
Analog input 2 / Select input 2 = Ramp ref 1
Set
Analog input 3
as input for the pressure setting (
PID offset 0
).
Analog input 3 / Select input 3 / PID offset 0
Set
Digital input 1
as enabling input for the PI block of the PID
Digital input 1 = Enable PI PID
Set
Digital input 2
as enabling input for the PD block of the PID
Digital input 2 = Enable PD PID
Содержание TPD32-EV-...-2B
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