Festo SPC200 Series, Manual

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3.1 General instructions
WARNING
Before undertaking installation and/or maintenance
work, switch off the following in the sequence speci-
fied here:
1. the compressed air supply
2. – the load voltage supply for field devices and
proportional directional control valves
(plug X2, pin 1)
– the load voltage supply for the outputs
(plug X6/X8, pin 8)
– if applicable, the load voltage supply for the
axis interface string
– the operating voltage supply for internal
electronics of the SPC200 and field devices
(plug X2, pin 2).
You thereby avoid:
– undesired movements of the connected actuators
– uncontrolled movements of loose tubing
– undefined switching states
CAUTION
Please note that the maximum permitted bus seg-
ment length depends on the baud rate used.
A bus segment is a bus cable which may contain up to
32 slaves (devices). The ends of the bus segment must
be sealed with a terminating resistor. Use plugs with an
integrated terminating resistor if you are fitting the
SPC200 to the end of a bus segment.
3. Installation
SPC200-COM-PDP 9904NH
3-3