Output Connections; Relay Output - Honeywell 5704 Operating Instructions Manual

MAN0448_Issue 13_01-2010
005704-M-5001 A03249
CHAPTER 4 - INSTAllATION INSTRUCTIONS
13.

OUTPUT CONNECTIONS

13.1 Relay Outputs
Note: The FAULT relay is permanently configured for normally
energised operation in the non-fault condition.
When mains ac is connected to the relay contacts:
a. The ac supply should be fused at 5A maximum.
b. A safety earth connection should be made to the ground
terminal of the relay card.
There are two relay card types providing different levels of alarm relay
capability (See Chapter 2 Section 5).
The cabling to the relays should where possible be kept away from the
sensor cabling, especially those cables carrying mains supplies. The
following figure shows the relay contact connections as shown on the
terminal block.
Energised
Contact
Position
De-energised
Contact
Position
De-energised and Energised Relays Showing Contact Positions
The alarm relays may be configured for either normally de-energised or
normally energised operation. Check the configuration sheet supplied
with the system to determine the operating mode of the relays on each
channel. The energisation mode of the relays can be reconfigured easily
using a computer attached to the Engineering Port. Contact Honeywell
Analytics or your local agent for more information.
CAUTION
4-41
5704 Control System
Com
NO
NC
Com
NO
NC