GE D25 User Manual page 37

Substation controller
Table of Contents

Advertisement

GE Grid Solutions
Digital Inputs,
Continued
Digital Inputs
With External Wetting, operation of the digital inputs is essentially the same
External
as for Supplied Wetting, except that the voltage that is switched at the input
Wetting
terminals is supplied by an external (non-D25) source. The external power
source is connected to pins 1 and 2 of Connector(s) A, C or E, for each of the
three Digital Input cards respectively.
Connections for digital input point number 1:
Voltage Detect
In this type of input, the D25 does not provide the wetting power source, from
either its own power supply, or from an external battery.
Note: Pins 1 and 2 of Connector(s) A, C or E are jumpered for each board
using this configuration.
If using more than one external power source, they must share a common
return, and it must be connected to the "B" input termination for each input
point.
Connections for digital input point number 1:
GE Information
Pin #
1
2
3
Connector
A
DC
External Wetting
Power Supply
Input #1
Contacts
994-0081-3.00-21
4
39 40
D25
User's Manual
37

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents