Field Wiring Guidelines
Original instructions
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Overview
Inputs are field wired to row 1 of the base. The outputs are field wired to row 2. This section contains wiring guidelines and precautions.
Terminal Connector
To connect field devices to the I/O base, you need a field wiring terminal connector. Schneider Electric sells terminal connectors in sets of three.
Type
Part Number
Screw-in
170 XTS 001 00
Spring-clip
170 XTS 002 00
Busbar May Be Required
Depending on the type of field devices you are using, you may need a 1-, 2-, or 3- row busbar. The following busbars are available from Schneider Electric.
Type
Number of Rows
Part Number
Screw-in
1 - row
170 XTS 006 01
2 - row
170 XTS 005 01
Spring-clip
1 - row
170 XTS 007 01
2 - row
170 XTS 008 01
Mapping Terminal Blocks
CAUTION
POTENTIAL FOR SHORT CIRCUITS AND/OR POWER-UP SPIKES
Provide external fuses on the operating voltage to protect the module. Appropriate fuse values are shown in the wiring illustration. An unprotected module may be subject to short circuits and/or power-up spikes.
Failure to follow these instructions can result in injury or equipment damage.
The following table shows mapping terminal blocks and optional busbars.
Row
Terminal
Function
1
1...16
Inputs
17
Return (M-)
18
+ 24 VDC Operating voltage (L+)
2
1, 3, 5, 7
Outputs for group 1
9, 11, 13, 15
Outputs for group 2
2, 4, 6, 8
Return (1M-) group 1 outputs
10, 12, 14, 16
Return (2M-) group 2 outputs
17/18
+ 24 VDC for output group 1 (1L+) and group 2 (2L+)
3
1 ... 4
Input voltage for terminal pins 1 ... 4 (L+)
5 ... 8
Input voltage for terminal pins 5 ... 8 (L+)
9 ... 12
Input voltage for terminal pins 9 ... 12 (L+)
13 ... 16
Input voltage for terminal pins 13 ... 16 (L+)
17/18
Return (1M-, 2M-)
4
1 ... 18
Return (M-) for sensors
5
1 ... 18
Protective earth (PE)
Protective Circuit May Be Required
When contacted switches are used on the input lines or when lines to the peripherals are very long, the outputs of inductive loads require protective circuitry with a clamping/suppressor diode. Install the protective circuit prallel to the operating coil.