Title: +038=360.000-OU045T_03-PCD2.m4160 PLS SBC - Hardware Manual.pdf
If a PCD module is connected to a higher voltage (50 … 250 V), approved components for this voltage must be used for all elements that are electrically connected to the system.Using higher voltage (50...250V), all connections to the relay contacts must be connected on the same circuit, i.e. in such a way that they are all protected against one AC phase by one common fuse. Each load circuit may also be protected individually.I/O modules and I/O terminal blocks may only be plugged in and removed when the PCD and the external +24 V are disconnected from the power supply.The Annex, Section A.4 "Relay contacts" contains measurement details and suggested wiring for the relay contacts. For safe switching and a long service life, these figures must be observed.Hardware Manual for the PCD2.M5 Series│Document 26/856; Version EN 09│2012-01-256-29Saia-Burgess Controls Ltd.Input/output (I/O) modulesPCD2.A2006.5.1 PCD2.A200, 4 relays with make contacts, with contact protectionApplication