Design and function
36
© Festo Didactic • MPS
®
PA Compact Workstation
LA+
S111
V105
B101
V104
P101
M
TIC
B104
LS-
S117
E104
LS+
B114
LS-
B113
Flow chart of the close loop temperature control system
The on/off switching period of the heating element E104, which is the manipulated
variable, determines the heat output of the heat exchanger. For controlling system a
two-point element can be used (see also EMCS block diagrams). For disturbance is it
possible to use cold fluid or (f.g. ice cubes) or mix with water from the upper tank.
The resistance of the temperature sensor is connected to the measuring transformer
A3. The transformer changes the resistance into a standard voltage signal 0 to 10 V.
The standard voltage signal is connected to the analog terminal X2 (UE4).
The heating is controlled by a internal relay. With a digital ouput (O1 at XMA1) the
relay can be switched on/off.
Содержание MPS PA Compact
Страница 1: ...MPS PA Compact Workstation EN 12 08 Process automation MPS PA Compact Workstation Manual ...
Страница 10: ...Introduction 10 Festo Didactic MPS PA Compact Workstation ...
Страница 14: ...Technical data 14 Festo Didactic MPS PA Compact Workstation ...
Страница 16: ...Transport Unpacking Scope of delivery 16 Festo Didactic MPS PA Compact Workstation ...
Страница 68: ...Commissioning 68 Festo Didactic MPS PA Compact Workstation ...
Страница 70: ...Maintenance 70 Festo Didactic MPS PA Compact Workstation ...