Installation, Operating & Maintenance Instructions 
Series 650 DN 100-250 (I.D. 4“ - 10”), CC-Link 
 
 
 
VAT Vakuumventile AG, CH-9469 Haag, Switzerland 
Tel +41 81 771 61 61   Fax +41 81 771 48 30   CH@vatvalve.com www.vatvalve.com 
280672EB 
2010-12-15 
17/94 
 
 
2.6.4  Power and sensor connection (±15 VDC sensors) without optional SPS module  
  [650 . . - . . T . - . . . . / 650 . . - . . U . - . . . . versions only 
 
2.6.4.1  Sensor power wiring via controller 
 
Note: 
•  Use shielded sensor cable(s). Keep cable as short as possible, but locate it away from noise sources. 
• Connect the ±15 VDC sensors at DB–15 female sensor connector exactly as shown in the drawing above. 
Do not connect other pins, that may damage power supply or controller! 
•  Connector: Use only screws with 4-40UNC thread for fastening the connectors! 
 
Pins 4 and 8 must be bridged for operation! 
An optional switch would allow for motor interlock to 
prevent valve from moving. 
Low range sensor may be connected 
to sensor 1 or sensor 2 input. 
Do configuration accordingly.
 
Fuse 1A 
Fuse 1A