Siemens ST750 - Figure 29 - Dimming Transformer Tap Selection; Table 13 - Phase Drive PL5 Connector

ST750 GENERAL HANDBOOK
667/HB/33750/000 Page 80 Issue 6
Figure 29 - Dimming Transformer Tap Selection
SCR
0
Required Dimming voltage
Input Tap
160V
IP2
140V
IP3
120V
IP4
If the ST750 is installed in another cabinet, the 667/1/27868/001 cable should be
used with connections as shown above. This cable is provided with the cabinet
modification kit.
Note 1: The links between pins 3 to 6 need to be rearranged.
Note 2: The Screen (SCR) and 48V Return connections on the Dimming
Transformer need to be linked together and connected to the Earth
Star point in the controller cabinet with a length of yellow/green wire.
Coding Details: Connector SK2 has no coding elements, as it is the only 10-way
connector and can only be inserted one way.
Table 13 – Phase Drive PL5 Connector
PL5
Pin No
External Lamp Monitoring Sensors
1
External Sensor 33 – Red
2
External Sensor 33 – White
3
External Sensor 34 – Red
4
External Sensor 34 – White
5
External Sensor 35 – Red
6
External Sensor 35 – White
7
External Sensor 36 – Red
Dimming
tap
positions