Oldham MX62, User Manual

Page: 55 / 74

Page 55
8. Connection and Installation
ATTENTION!
It is not allowed to install the WinPro

/ MX62 in a hazardous areas.
8.1. Wiring
8.1.1. Mains supply
The electric installation for WinPro
®
/ MX62 has to provide an isolator
(e.g. an overload release) to guarantee secure disconnection from the
mains supply. WinPro
®
/ MX62 must not be installed in hazardous areas.
WinPro
®
/ MX62 is designed for stationary installation to a mains supply
of 230 V AC/50 Hz (also available for 24 V DC).
The unit complies with Protection Class I according to EN 60335 and has
to be connected to a protective conductor (PE).
8.1.2. Connection of relays
A maximum of 128 relays (8 relay modules with up to 16 relays) with
potential-free change-over contacts for 230 V/6 A resistive load can
activate external devices or transmit information.
Selection of closed or open circuit operation is done by a jumper.
Unshielded cables can be used for connection.
The relay modules can be connected through a flat or bus cable.
The maximum bus length is 800 m.
Installation of the relay modules must not be subject to any oscillation, the
impact of which could cause short-term false signals at the relay outputs.
8.1.3. Connection of detectors
The gas detection system is designed for connection of up to 64 detectors
(4-20 mA) by 2- or 3-wire technique.
Connecting of the detectors to the AEM is via shielded cable. Detectors
with external input requirement must not be connected.
The sheath of the shielded line must be connected with the housing of
WinPro
®
/ MX62. In case the housing of the detector is made of metal, the
sheath is also to be connected with this housing via the screwing.
The maximum cable length is determined by the detector to be connected
(see respective data sheet) and must not be exceeded.