Siemens SIMATIC 505 - Communications Setup for PLC Connection

Installation and Startup
3-2
3.1 Machine Configurations
The first step in preparation for use of the T urboPlastic module is to
determine the machine control and valve configuration. Figure 3-1,
Figure 3-2, and Figure 3-3 show diagrams of the three most common
configurations. Although some differences will be noted between the
examples and actual machine configurations, one of the three examples
should be functionally appropriate. Table 3-1 contains the injection, pack
and hold, and plasticate profiles for output configuration 3. Refer to
T able 3-2 for the necessary switch settings.
0 +10Vdc output
0 2000psi
Heater bands melt
pellets to liquid plastic
Screw motor
Injection ram
Ram
position
sensor
Clamp
actuator
Mold
Mold
position
sensor
Hopper
0–10V
0–10V
Clamp end
of machine
Water circulates
to cool and solidify
plastic in mold
Injection end
of machine
Pressure control valve
Pressure
transducer
System
pressure
Flow (Velocity)
control valve
0–10Vdc
flow signal
UP
Pressure control
valve
System
pressure
Flow (velocity)
control valve
0–10Vdc
flow signal
Pressure
transducer
0 +10Vdc output
0 2000psi
UP
Figure 3-1 Plastic Injection Molding Machine Contr ol Points, Machine Configuration 1