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1.2
Wiring
CAUTION
WIRING INSTALLATION MUST BE CARRIED OUT BY A COMPETENT ELECTRICIAN AND IS
SUBJECT TO I.E.E. WIRING REGULATIONS (BS 7671:1992) AND/OR LOCAL STANDARDS,
WHICH MAY PREVAIL.
HAZARDOUS VOLTAGES MUST BE ISOLATED BEFORE SERVICE WORK IS CARRIED OUT.
The main controller MUST be mounted within a ‘burner cabinet’ or similar panel and MUST be
earthed to the overall enclosure to ensure safe and reliable operation using the largest cross-
sectional area green/yellow earth wire available.
Do not use a green/yellow conductor for any
purpose other than earth.
The metal body of all other component parts MUST be connected to
earth using a green/yellow conductor.
To comply with EMC requirements, the controller and any optional units must be wired using the
specified cable sizes, and screen connections, observing any maximum cable length limitations.
Cabinet designers MUST ensure that Line voltage and Extra Low Voltage (ELV) cables are
segregated within the burner cabinet, distribution panels and conduits.
The manufacturer of this equipment recommends the use of bootlace ferules on all wire ends,
as a “best practice”.
Bootlace
Ferrules
All cabling that is required to operate at above 50V must be multi-strand single core, PVC insulated,
at least 0.5 mm
2
(20 AWG) and should meet the requirements of I.E.C. 227 or I.E.C. 225.
Read this document in conjunction with the product bulletin
NEX-6101 & PPC6000
Disconnect the power supply before beginning installation to
prevent electrical shock, equipment and/or control damage. More
than one power supply disconnect may be involved.
Wiring must comply with all applicable codes, ordinances and
regulations.
Ensure the maximum total load on the CANbus cabling (servo-
motors, display etc) is within the specifications for the cable being
used.
This equipment MUST NOT be directly connected to any part of a
SELV circuit.
Summary of Contents for NEXUS NX6100 series
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