TWINFLEX
®
pro² Control Panel Engineering and Commissioning Manual
60
Installation and Commissioning
Installation 1
st
Stage
The installer must install the system wiring in the form of 2-core radial circuits. All cabling should be 2
core 1.5mm
2
, screened and fire resistant, of an FP200 equivalent type. 4 core cable as a zone in and
zone out must not be used, due to the possibility of data corruption.
The zone should be left unconnected to the panel with no devices installed and must be tested for
continuity and integrity with a multi-meter set to read Ohms.
The control panel back box should be mounted, with the mains supply tested, connected and isolated at
the un-switched fused spur, ready for commissioning. Where the zone cabling is continued via the
device, such as I/O modules, the cables should be temporarily connected through using connector
blocks.
The installer needs to provide a set of ‘As-Wired’ drawings and proof of loop continuity and insulation
test readings etc. before commissioning may proceed. This information is essential, and may be
entered onto the forms provided at the rear of the manual.
Maximum Cable Lengths
Maximum cable lengths for Monitored Outputs and the Monitored Input is 10 metres. For Auxiliary
Power, Programmable Inputs, Fire and Fault Output relays, the maximum length is 5 metres. The
maximum cable length for a zone is 500m.
Installation 2
nd
Stage
Once the commissioning engineer is satisfied with the continuity / integrity of the zone cables, the
control panel may be powered up as follows: