IO-AI8
I / O E x p a n s i o n M o d u l e
1/11
Wiring
Do not touch live wires.
Unused pins should not be connected. Ignoring this directive may damage the device.
Do not connect the ‘Neutral or ‘Line’ signal of the 110/220VAC to the device’s COM pins.
Double-check all wiring before turning on the power supply.
Wiring Procedures
Use crimp terminals for wiring; use 26-12 AWG wire (0.13 mm
2
–3.31 mm
2
) for all wiring purposes.
1.
Strip the wire to a length of 7±0.5mm (0.250–0.300”).
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·m).
Do not use tin, solder, or any substance on stripped wire that might cause the wire strand to break.
Install at maximum distance from high-voltage cables and power equipment.
I/O Wiring—General
Input or output cables should not
be run through the same multi-core
cable or share the same wire.
Allow for voltage drop and noise
interference with input lines used
over an extended distance. Use
wire that is properly sized for the
load.
Analog Inputs
Shields should be connected at the
signal source.
Inputs may be set as either current,
or voltage. To set an input
Use the appropriate wiring as
shown near.
Open the device and set the
jumpers according to the
instructions beginning on page 5.
The adapter and the COM signals
of the analog inputs must be
connected to the same 0V signal.
The COM signals of each channel
are internally shorted.
When set to current/voltage, each 2 inputs share
a common COM signal.
Spectra GmbH & Co. KG
[email protected]
Spectra (Schweiz) AG
[email protected]