EX-A2X I/O Expansion Module Adapter, Isolated 12/09
4
Unitronics
Connecting Expansion Modules
An adapter provides the interface between the OPLC and an expansion module. To connect the I/O module to
the adapter or to another module:
1. Push the module-to-module connector into the port located on the right side of the device.
Note that there is a protective cap provided with the adapter. This cap covers the port of the final
I/O module in the system.
To avoid damaging the system, do not connect or disconnect the device when the
power is on.
Component identification
1 Module-to-module
connector
2 Protective cap
1 2
Wiring
Do not touch live wires.
Unused pins should not be connected. Ignoring this directive may damage the device.
Double-check all wiring before turning on the power supply.
Do not connect the Neutral or Line signal of the 110/220VAC to the devices 0V pin.
In the event of voltage fluctuations or non-conformity to voltage power supply specifications,
connect the device to a regulated power supply.
Double-check all the wiring before turning on the power supply.
Wiring Procedures
Use crimp terminals for wiring; use 26-12AWG wire (0.13 mm
2
3.31 mm
2
) for all wiring purposes.
1. Strip the wire to a length of 7±0.5mm (0.2500.300 inches).
2. Unscrew the terminal to its widest position before inserting a wire.
3. Insert the wire completely into the terminal to ensure that a proper connection can be made.
4. Tighten enough to keep the wire from pulling free.
To avoid damaging the wire, do not exceed a maximum torque of 0.5 N·m (5 kgf·cm).
Do not use tin, solder, or any other substance on stripped wire that might cause the wire strand to break.
Install at maximum distance from high-voltage cables and power equipment.
www.klinkmann.com
5 / 2011
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