Rockwell Automation 1771-QB Linear Pos. - Manual (Page 39)

Hardware Description
Chapter 4
4Ć10
to power the: supply: to these terminals:
Transducer interface +5 VDC 9, 10
Discrete inputs +24 VDC (max) 27, 28
Servo valve interface +15 VDC 33, 34, 35
Discrete outputs +30 VDC (max) 40
All power connections must be made for the transducer, servo valve, and
discrete outputs. The power supply for discrete inputs may be left unconnected
if the discrete input disable bit has been set in the parameter block.