Tyco RDU Mk2, Инструкция по установке и программированию, Страница: 144 / 178

RDU Mk2 Installation & Programming Manual Document No: LT0499
Installation & Wiring
Page 8-14 8 April 2015 Issue 1.02
+VBF1 o─────┐
┌─ │
| SUP o──┐ │
| │ │
ANC2A| NC o──┘ │
| │
| NO o─────┘ LOAD
| (SEE NOTE)
| COM o───────────────────────────────────────────┬───────────┐
└─ │ │
┌┴┐ ╒╧╕
└┬┘ │ │
│ └┬┘
0V o───────────────────────────────────────────┴───────────┘
SUPPRESSION
DIODE
Note: For a load of less than 400 Ohms a diode of suitable current rating must be added in
series with the load at the load as shown below.
──────┬───┐ ──────┐
┌─┴─┐╒╧╕ ┌┴┐
LOAD│ ││ │DIODE │ │DIODE
└─┬─┘└┬┘ ╘╤╛
├───┘ OR ├───┐
┌┴┐ ┌─┴─┐╒╧╕
│ │DIODE LOAD│ ││ │DIODE
╘╤╛ └─┬─┘└┬┘
0V ──────┘ 0V ─────┴───┘
FIG 8.2.6C
EXAMPLE OF PLANT RELAY WIRING WITH SUPERVISION
WARNING
Apart from the mains supply to the RDU only ELV wiring may enter the cabinet.
Relays must not be used to switch medium or high voltage.