8

Input Wiring (continued)

Block Wiring for 32-Circuit Source Block in an Input Group

DC Source Block IC660BBD024

Connection if no points on the block are to be autotested (must disconnect output 16).

Device #1

If single sensor, it must also be wired to corresponding point on two other input blocks

22V to 30V DC

Genius Bus

Connections

Required at each input (for Input

Autotesting). 1N5400 or equivalent.

Required at each powerfeed output (for

Output 16

Input Autotesting). 1N5400 or equivalent.

S1

S2

SHLD IN

SHLD OUT

DC+

DC+

DC+

DC+

DC+

10

12

14

16

18

20

22

24

26

If group inputs are configured for autotesting, circuit 16 must be used as an output

If no autotesting is to be done on this group of inputs, the input devices must not be wired to circuit 16. They must be wired to the power source instead.

If group uses single sensors, point 16 must also be wired to corresponding point on two other input blocks

Device #32

28

30

32

34

36

38

40

42DC±

DC±

44DC±

DC±

46DC±

OVDC

Ground

HIn three-block input group, each block is connected to one bus of three.

HIf redundant power supplies are to be used, they should be diode ªORedº power supplies providing common power to all blocks in a group. Different groups may use different power sources.

8-8

GeniustModular Redundancy Flexible Triple Modular Redundant (TMR) System

GFK-0787B

 

User's Manual ± March 1995

 

Page 189
Image 189
GE GFK-0787B user manual Block Wiring for 32-Circuit Source Block in an Input Group, DC Source Block IC660BBD024