GE P642 User Manual

Open indication is pr
oduced by ANDing together the statuses of the relevant CBs. This is dependent on the model
and the terminal status configuration, and is shown in the logic diagram.
For cases where there are no auxiliary contacts available, the CB Open 3 ph signal must be forced low to avoid a
false Pole Dead indication. You can do this by forcing all five CBx Closed DDB signals high using opto-inputs as
shown below.
V01230
Opto Input 7
1
CB1 Closed
Opto Input 8 1 CB2 Closed
Opto Input 9 1 CB3 Closed
Opto Input 10
1
CB4 Closed
Opto Input 11 1 CB5 Closed
High
Figure 130: Forcing CB Closed signals
P64x Chapter 13 - Monitoring and Control
P64x-TM-EN-1.3 281

GE P642 Specifications

General

Brand	GE
Model	P642
Category	Relays
Language	English