Unitronics Vision 260 Installation Guide

Vision™ OPLC™ Models V230/260/280/290 (Non-color Screens)
6 Unitronics
Use crimp terminals for wiring; use 26-14 AWG wire (0.13 mm
2
–2.08 mm
2
).
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 ( ) as described on page 5.
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
Caution
 Always use the appropriate port adapters
 The serial ports are not isolated. If the controller is used with a non-isolated external
device, avoid potential voltage that exceeds ± 10V

Unitronics Vision 260 Specifications

General

Brand	Unitronics
Model	Vision 260
Category	Controller
Language	English