2.4.1 VSmart Module Connections
You must remove the Intrinsically Safe barrier panel to attach wiring.
VSmart power
must be off
while connecting wires! Connect the probe
wires and cables according to the following chart (see Figure 2-9 VSmart
Module Connections).
2.4.2 VSmart & I/O Module AC Wiring
1. Pull two AC power wires from the circuit breaker to each
module; you may “daisy chain” the wires from module to
module, not to exceed the circuit-breaker rating (see Figure 2-9).
2. Connect the live and neutral power wires to the appropriate
terminals in each module.
3. Make sure the modules are set for the correct voltages (115 or
230 VAC). For VSmart Modules, check the decal near the
terminal block. For I/O Modules, check the “line voltage selector”
switch on the circuit board.
4. Determine the grounding method. There are two versions of the
VSmart Module: one has a single-ground terminal; the other has
a second-ground terminal for the I.S. barrier. All ground
connections must be done with 12 AWG wire.
5. Ideally, all AC power should be in the same phase for best
operation.
Figure 2-9 VSmart Module Connections
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