Chapter 15 – Installation
5 CABLES AND CONNECTORS
This section describes the type of wiring and connections that should be used when installing the device. For
pin-out details please refer to the Hardware Design chapter or the wiring diagrams.
Before carrying out any work on the equipment you should be familiar with the Safety Section
and the ratings on the equipment’s rating label.
The connections: Console1, Console2, MODEM and Process bus are non-isolated and for
local connection only.
5.1 POWER SUPPLY CONNECTIONS
The RPV311, RA331, RA332 and RA333 can be powered-up by DC or AC power source within the limits
specified in Chapter 17.
The power connections shall use insulated flexible conductors anti-flame (BWF type) with 1.5 mm² section,
thermal class 70 °C and isolation voltage of 750 V.
To reduce risk of electrical shock, pre-insulated pin terminals, as shown in Figure 103, should be used on the
ends of the power connections.
Figure 103: Pre-insulated tubular pin terminals
The pin terminals should be completely inserted into the header connector supplied with the unit so that no
metallic parts are exposed, as shown in Figure 104.
Figure 104: Header connector assembly
A safety ground lead shall be connected to the terminal marked with the protective earth symbol.
For better electromagnetic compatibility, ground the unit using a 10 mm (0.4 in) wide grounding strap to
connect the back panel of the unit to a good grounding point on the mounting rack.
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