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Power and Field Wiring
After the power supply module has been properly mounted, install input power and field wiring.
Use 18 AWG wire as recommended in
the power supply module. Refer to
Table 4.
Purpose
Power input terminals
Field-wiring connections
Note: The maximum wire length for 18 AWG wire is 50 feet (15 m). Longer lengths result in
Figure 5.
Wiring connections
2
1
Installing Power Input Wire
Follow these steps to install power input wiring:
1. Perform lockout/tagout procedures for line voltage power to the cabinet.
2. Install power input wire for the 24 Vac input connection by using 18 AWG wire and the
Note: Strip the wire to expose 0.28 in. (7mm) of bare wire for inserting into the terminal blocks.
BAS-SVX33F-EN
Recommended wire sizes
excessive voltage drop and would then require 16 AWG wire.
3
4
OUT
XFMR
24
24
VAC
VAC
5
6
recommended connector
After tightening the screws, verify that the wire cannot be easily pulled out by lightly tugging
on each wire. For reference, the screw terminals should be tightened to 0.5 to 0.6 N-m (71-
85 Ozf-in, 4.4-5.3 Lbf-in)
Installing the Power Supply Module
Table
4. Refer to
Figure 5
Table 5
for the recommended connectors.
Wire Size
18 AWG
18 AWG
Table 5.
Recommended connectors
Location
Description
1
IMC pin connection
2
IMC plug-type terminal block
3
IMC plug-type terminal block
4
IMC pin connection
5
24 Vac output
6
24 Vac input
(b)
(a) The + and - terminals are for the IMC bus comm lines. The power
supply module transmits IMC communication signals and can provide
power to connected modules. Module s can be wired into one of the
connectors to obtain access to power and communications for the en-
tire IMC link.
(b) The 24 Vac input connection must be connected to functional earth
ground for referencing the IMC bus and for electromagnetic compat-
ibility.
(Table
5).
for wiring connection locations on
Recommended
Connector
CAB01202 or
CAB01203
(a)
CON00431
(a)
CON00431
CAB01202 or
CAB01203
CON00429
CON00429
13
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