GE Multilin G650, Manual, Page: 72 / 639

GEK-113285A G650 Generator Protection & Control System 3-9
3 HARDWARE 3.4 WIRING
3
3.4WIRING 3.4.1 EXTERNAL CONNECTIONS
G650 units can hold different options for F module:
Option 1:
Board with 16 digital inputs and 8 outputs.
Option 2:
Board with 8 digital inputs, 4 circuit supervision inputs, 6 conventional outputs, and two current sensing
outputs
Option 4:
Board with 32 digital inputs.
Option 5:
Board with 16 digital inputs and 8 analog inputs.
For slot G there are four different options:
Option 0:
No board
Option 1:
Board with 16 digital inputs and 8 outputs.
Option 4:
Board with 32 digital inputs.
Option 5:
Board with 16 digital inputs and 8 analog inputs.
The number selected for slot G must be equal or higher than the number selected for option F for models including boards
4 and 5.
3.4.2 DIGITAL INPUTS WITH TRIP CIRCUIT SUPERVISION
The Option 2 I/O board includes two groups of 4 inputs with one common, in terminals F9 to F10. It also includes 6 auxiliary
outputs, in terminals F19 to F30 with normally open contacts and two current sensing (latching) outputs (F31-F33 and F34-
F36).
Besides, there are 2 groups of inputs for trip circuit supervision. The first group includes two isolated digital inputs, terminals
F1-F2 and F3-F4. The second group, symmetrical and identical to the first, is formed by isolated voltage inputs F15-F16
and F17-F18.
Using voltage detectors and current sensing, it is possible to implement several trip or close circuit supervision schemes, as
well as protection of the unit output contact.
In order to implement these schemes, it is not necessary to perform any setting in the unit. Internal functions are
always operative. The detailed description of trip circuit supervision is included in chapter 5 in this manual.