Emerson E2 Setting the Fail-Safe Dip Switch, Relay Output Test Mode, Board Type Version

(all other output boards).

Table 9-3shows how the fail-safe switch, jumpers, and/or Form C contacts should be configured based on how you want the output to perform during both normal operation and during network/power loss.

Controller			Set Jumper
	Fail	Set	or Wire
Command vs.		Switch	Form C
	State
Contact State		To:	Contacts
			To:
ON=CLOSED	ON	UP	N.C.
OFF=OPEN
ON=CLOSED	OFF	UP	N.O.
OFF=OPEN
ON=OPEN	ON	DOWN	N.O.
OFF=CLOSED
ON=OPEN	OFF	DOWN	N.C.
OFF=CLOSED

Table 9-3- Output Board Fail-Safe and Switch Settings

9.2.3Setting the Fail-Safe Dip

Switch

The fail-safe dip switch determines the sate of the relay when communication is lost between the board and E2. The fail-safe dip switches are labeled S2 on the 8RO, and switch S3 on the 8IO. Each of the eight rockers on the fail- safe dip switch corresponds to an output on the board. Set the rocker UP to close the relay and turn the output ON during network failure. Set the switch DOWN to open the relay and turn the output OFF during network failure.

9.2.4Relay Output Test Mode

Newly released versions of the MultiFlex I/O board family and the 8ROSMT have a new feature that allows relays to be manually energized and de-energized without use of an override from a Hand-Held Terminal when the board is offline. When a MultiFlex is in Relay Output Test Mode, the output fail-safe dip switches may be used to cycle the states of the relay outputs. The feature is designed to help manufacturers of panels test output wir- ing quickly and easily without need for a site controller or HHT.

Relay Output Test Mode is available in the following

product versions:

Board Type	Version
8RO-SMT output board	1.20F01
	and above
MultiFlex 168, 88, 168AO,	1.60F01
and 88AO combination input/	and above
output boards
MultiFlex 168DO combina-	1.60F01
tion input/output boards with	and above
digital outputs
MultiFlex 1616LAO and	1.30F01
1616LDO combination input/	and above
output board
MultiFlex 1616L combina-	1.20F01
tion input/output board w/o	and above
analog outputs

To activate Relay Output Test Mode for MultiFlex, set switches 1-8 on DIP Switch banks S3 and S4 to the OFF (LEFT) position. For 8ROSMT, set switches 1-8 on DIP Switch bank S1 (NETWORK) to the OFF (DOWN) posi- tion. The board will enter Relay Output Test Mode.

In Relay Output Test Mode, fail-safe dip switches 1-8 (located on the output board layer of MultiFlex I/O boards, and next to switch bank S1 on the 8ROSMT) can be used to change the state of the relays.

Afail-safe switch in the ON position will cause the corresponding relay to be energized (i.e., OPEN on the N.C. terminals, and CLOSED on the N.O. terminals). A fail-safe switch in the OFF position will cause the relay to be de-energized (i.e., CLOSED on the N.C. terminals and OPEN on the N.O. terminals).

The LED that shows the output state will also be ON when the switch is ON and OFF when the switch is OFF.

To exit Relay Output Test Mode, set the address switches S3 and S4 to any position other than “all OFF.” The fail-safe switches will resume normal operation.

The 8RO, 8IO, and MultiFlex Outputs Input and Output Setup • 9-11