Hardware Manual PCD 1 / PCD 2 Series│Document 26 / 737│Edition EN 15│2008-07-22
Saia-Burgess Controls AG
Run/Stop or Run/Halt switchCPUs and expansion housings3
3.20 Run/Stop or Run/Halt switch (PCD2.M170/M480 only)
Traditionally, PCD controllers could only be reliably set to RUN or STOP mode from
the PG3/4/5. With the PCD2.M170 and PCD2.M480 CPUs, it is also possible to influ-
ence the operating state with one of the switches accessible on the front.
On the PCD2.M170, the switch is labelled Run/Halt; on the PCD2.M480, it is labelled
Run/Stop, in keeping with the practice for xx7 CPUs.
With both controllers, switching to STOP/HALT causes a change from RUN to HALT
mode; switching to RUN causes a cold start to be executed.
As delivered from the factory, the Run/Stop or Run/Halt switch is deactivated; it can
be activated with a jumper located right next to the switch:RunStop/HaltSwitch
EnableOnly move jumpers with the supply switched off��h the supply switched off��