Step 4 Wire Rem Relay Outputs; Directions To Wire Relay Outputs - Xylem YSI IOEM Safety And Installation Manual

REM DC power
5. Complete other wiring to IOEM and REM.
6. Close front panel - page 32.
7. Test DC power. PCB PWR status led will be solid green.
Note:
- The IOEM and REM will not power up if DC power supply wires are
terminated incorrectly.

Step 4 Wire REM Relay Outputs

The REM has four (4) on board non-fused relays rated at 250VAC@10AMPs. REM
relays can be configured to any 5X00 system, sensor control, alarm and timer system.
Terminate relay device wires to Normally Open (NO), Normally Closed (NC), and
Common (C) sockets as required for the application. (See IOEM and REM board
wiring diagram on inside of front panel for identification of relay number and pin
position.) Relays 1-4 are terminated at location B.
Do not overload relay(s). Check manufacturer specifications for
:
CAUTION
inductive current/amp at power up. Use a contactor if necessary - figure 3.6.
IOEM/REM Safey and Installation Guide
Installation and Wiring
40

Directions to Wire Relay Outputs

WARNING: Disconnect external power to the unit before wiring. If any of
the relay contacts are connected to a "hazardous-live" circuit, ALL contacts on
ALL relays must be considered "hazardous-live" and appropriately protected
from user contact outside the IOEM and REM enclosure.
AVERTISSEMENT : déconnectez l'alimentation externe de l'unité avant
d' e ffectuer le câblage. Si un contact de relai quelconque est connecté à un
circuit sous tension dangereuse, TOUS les contacts de TOUS les relais doivent
être considérés comme étant sous tension dangereuse et doivent être protégés
de façon adéquate de tout contact de l'utilisateur hors du boîtier du modèle
IOEM and REM.
1. Perform steps 1 - 3 of IOEM and REM installation.
2. Open front panel -page 32.
3. Feed relay device wires through drilled hole in rubber grommet and to
locations B. The terminal strip is removable.
CAUTION:
Run high and low voltage cables through separate bulkhead and
conduit.
4. Terminate relay device wires according to relay number. Wire devices to
NC or NO and C pins depending on device configuration.
REM relay termination
IOEM/REM Safey and Installation Guide
Installation and Wiring
41