Unitronics Vision OPLC V350-35-TR20, Руководство по установке

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V350-35-TR20 Installation Guide
8 Unitronics
npn Outputs
Power Supply
The controller requires an external 24VDC power supply.

The power supply must include double insulation. Outputs must be rated as
SELV/PELV/Class 2/Limited Power.

Use separate wires to connect the functional earth line
(pin 3) and the 0V line (pin 2) to the system earth
ground.

Install an external circuit breaker. Guard against short-
circuiting in external wiring.

Double-check all wiring before turning on the power
supply.
 Do not connect either the ‘Neutral or ‘Line’ signal of
th
e 110/220VAC to device’s 0V pin.

In the event of voltage fluctuations or non-conformity
to voltage power supply specifications, connect the
device to a regulated power supply.
Earthing the OPLC
To maximize system performance, avoid electromagnetic interference by:

Mounting the controller on a metal panel.

Connect each common and ground connection directly to the earth ground of your system.

For ground wiring use the shortest and thickest possible wire.
Communication Port

Turn off power before making communications connections.
Caution

Signa
ls are related to the controller’s 0V; the same 0V is used by the power supply.

Always use the appropriate port adapters.

The serial port is not isolated. If the controller is used with a non-isolated external device,
avoid ground potential difference that exceeds ± 10V.
Port 1 is type RJ-11 and may be set to either RS232 or RS485 via jumper as shown below.
By factory default, the port is set to RS232, termination ON.

Use RS232 to download programs from a PC, and to communicate with serial devices and
applications, such as SCADA.

Use RS485 to create a multi-drop network containing up to 32 devices.