ST750
G
ENERAL
H
ANDBOOK
667/HB/33750/000
Page 72
Issue 6
Note:
The followi
ng connectors’ identification, signal allocation, coding information
(when required) and Softwire colours (when used) are given as guidance to assist
the installation engineer, when wiring to the Works Specification. No Softwire Kit is
required to wire an ST750 Rack Assembly into an ST750 Cabinet as the Intersection
Cables can be wired directly to the ST750 terminals. Softwire Kits are available to
install an ST750 in other Cabinets. If the Softwire kit is used in the ST750 cabinet
assembly, then their associated terminal blocks are mounted on the right hand side
and back of the cabinet’s inner metal frame. The position of these terminal blocks
means that a short screwdriver (No1 Pozidriv) is required to terminate the wires due
to the proximity of the dimming transformer (if fitted). If there are many cables,
access to the terminal blocks becomes restricted.
5.11.1 Phase Drive PCB Terminal blocks
For installation in an ST750 Cabinet, wire the intersection cables directly to the
specified connector in the following tables (using the respective mating half
contained in the attached plastic bag) on the Phase Drive PCB.
The connectors must be wired as follows:
•
Ensure 10mm of wire insulation is stripped back
•
Make sure that the connector is fully undone (open) before inserting the stripped
wire end
•
Insert the stripped wire end fully to the back stop
•
Firmly tighten the connector’s terminal screw ensuring that the wire’s conductor
is firmly positioned correctly in the connector
Warning:
The above method must be used. Failure to do so could result in
the wires coming loose or falling out over a short period of time.
For installation in another cabinet, a Softwire Kit is required. Wire the loose ends of
the Softwire kit Cableform to the cabinet terminal blocks. Use the relevant signals as
defined by the works specification and shown in the tables that follow. Figure 27
also provides further information on PL6, PL7 and PL8.
Table 6
– Phase Drive PL6 Connector
PL6
Pin No
Signal Phase Drive O/P
Softwire kit
Cableform
667/1/27877/000
Colour
Ident
1
Red Phase A (Unmonitored)
Red
RAU
2
Monitored Red Phase A Approach 1
3
Monitored Red Phase A Approach 1
Red
RA1
4
Monitored Amber Phase A Approach 1
Yellow
YA1
5
Monitored Green Phase A Approach 1
Green
GA1
6
Monitored Red Phase A Approach 2