Johnson Controls MS-IOM3723 Installation Manual page 4

Avertissement
Risque de décharge électrique:
Débrancher ou isoler toute alimentation avant de
réaliser un branchement électrique. Plusieurs iso-
lations et débranchements sont peut-être néces-
saires pour -couper entièrement l'alimentation de
l'équipement. Tout contact avec des composants con-
ducteurs de tensions dangereuses risque d'entraîner
une décharge électrique et de provoquer des
blessures graves, voire mortelles.
Risk of Property Damage:
Do not apply power to the system before checking all
wiring connections. Short circuited or improperly con-
nected wires may result in permanent damage to the
equipment.
Mise En Garde: Risque de dégâts matériels:
Ne pas mettre le système sous tension avant d'avoir
vérifié tous les raccords de câblage. Des fils for-
mant un court-circuit ou connectés de façon incor-
recte risquent d'endommager irrémédiablement
l'équipement.
Important: Do not exceed the expansion module
electrical ratings. Exceeding expansion module
electrical ratings can result in permanent damage to
the expansion module and void any warranty.
Important: Use copper conductors only. Make
all wiring in accordance with local, national, and
regional regulations.
Important: Electrostatic discharge can damage
expansion module components. Use proper
electrostatic discharge precautions during
installation, setup, and servicing to avoid damaging
the expansion module.
For detailed information on configuring and wiring
an MS/TP bus, FC bus, and SA bus, refer to the MS/TP
Communications Bus Technical Bulletin (LIT-12011034).
Terminal blocks and bus ports
See Figure 1 for terminal block and bus port locations on
the expansion module. Observe the following guidelines
when wiring an expansion module.
4 IOM3723 Input/Output Module Installation Guide
CAUTION
CAUTION
Input terminal blocks
The IOM3723 has inputs only (no outputs). The inputs
are located on both the top and bottom of the expansion
module. See Table 2 for more information about I/O
terminal functions, requirements, and ratings.
SA/FC bus terminal block
An IOM can be connected to an SA bus or an FC bus,
but not to both buses simultaneously. The SA/FC bus
terminal block is a removable, 4-terminal plug that fits
into a board-mounted jack.
When connecting the IOM to an FC bus, wire the bus
terminal block plugs on the expansion module, and the
other controllers and expansion modules in a daisy-chain
configuration using 3-wire twisted, shielded cable as
shown in the following figure.
Figure 4: FC bus terminal block wiring
When connecting the IOM to an SA bus, wire the bus
terminal block plugs on the expansion module and other
SA bus devices in a daisy-chain configuration using 4-wire
twisted, shielded cable as shown in Figure 5.