Wiring Guidelines; Earthing The Controller; Power Supply; Communication Ports - Unitronics Vision 230 Installation Manual

Use crimp terminals for wiring; use 26-14 AWG wire (0.13 mm
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 a proper connection.
4. Tighten enough to keep the wire from pulling free.

Wiring Guidelines

Use separate wiring ducts for each of the following groups:

Group 1: Low voltage I/O and supply lines, communication lines.

Group 2: High voltage Lines, Low voltage noisy lines like motor driver outputs.

Separate these groups by at least 10cm (4"). If this is not possible, cross the ducts at a 90˚angle.
For proper system operation, all 0V points in the system should be connected to the

system 0V supply rail.

Earthing the Controller

To maximize system performance, avoid electromagnetic interference as follows:
Use a metal cabinet.

Connect the functional earth terminal (

Use only the grounding cable provided with the controller.
Connect the 0V terminal to the earth ground of the system at one point, preferably as near to

the controller as possible.

Power Supply

The controller requires an external 12 or 24VDC power supply. The permissible input voltage
range is 10.2-28.8VDC, with less than 10% ripple.
You must use an external circuit protection device

Install an external circuit breaker. Guard against short-

circuiting in external wiring
Double-check all wiring before turning on the power

supply
In the event of voltage fluctuations or non-conformity to

voltage power supply specifications, connect the
device to a regulated power supply

Communication Ports

Turn off power before making communications connections

Signals are related to the controller's 0V; this is the same 0V used by the power

supply
Always use the appropriate port adapters

Caution
The serial ports are not isolated. If the controller is used with a non-isolated external

device, avoid potential voltage that exceeds ± 10V
6
Vision™ OPLC™ Models V230/260/280/290 (Non-color Screens)
2
) as described on page 5.
2
–2.08 mm ).
Unitronics