Festo FSSC-12, Operating Instructions Manual

Page: 23 / 88

Commander
Festo FSSC−12 0410a English
23
Fittin g pne uma ti c c o m ponent s
6. 2 C o m pre ss e d a ir c onne c tion s
Connect the inputs of the Commander with the elements of your controller
according to the circuit diagram.
Mandatory connections
De s i g n a tion Extern a l s i g n a l inp u t
P
IN
Operating pressure
0−POSITION
IN
Direct group base position, usually from external transducers.
Multiple Quicksteppers can be supplied from the (last) output X
12
via an and−circuit to the input 0−POSITION
IN
.
EMERGENCY−
STOP (NOT AUS) If no signal is applied, or if operating pressure fails, the outputs
A1
1
... A
12
of the Festo FSS−12−C Quickstepper step switch are
blocked. This also applies if an external EMERGENCY−STOP impact
switch is unlocked. Activation of an EMERGENCY−STOP switch
blocks all Quickstepper outlets by breaking off the connection
from the connection P of the Quickstepper to connection A
P
of the
Commander.
Optional connections
De s i g n a tion Extern a l s i g n a l inp u t
START
IN
External start signal. The Start button on the Commander mus t be
blocked if start is to be executed with an external transducer
(chapter 8).
STOP
IN
External stop signal for stop in the cycle. The Stop button on the
Commander can be blocked to limit the tripping location of the
signal to the external transducer (chapter 8). Activating the Stop
button blocks the next step, the output however remains charged
with compressed air.