BE1-951
Testing and Maintenance
13-57
D2843-08.vsd
02-02-99
B L K
INI
0
1
0
0
1
1
X
t1
t1
t2
x62
Figure 13-4. x62 Mode 1 (Pickup/Dropout) Timing Example
Table 13-90. x62 Mode 1 Timer Initiate Commands
Command
Purpose
A=
Gain write access
CS-43=1
Selects 43 for On operation
CO-43=1
Executes 43 for On operation
Step 4
Transmit the commands in Table 13-91 to the relay. These commands will remove the initiate input
from the 62 timer by changing the 43 switch state to open (logic 0).
Table 13-91. x62 Mode 1 Timer Initiate Removal Commands
Command
Purpose
CS-43=0
Selects 43 for Off operation
CO-43=0
Executes 43 for Off operation
Step 5 Use the RS-LGC command to retrieve logic variable data from the SER. Verify that the 43 switch
change to a closed state was logged and approximately 400 milliseconds later, the 62 timer picked
up. Then, some time later, the 43 switch change to an open state was logged and the 62 timer
dropped out approximately 2,000 milliseconds later. The state of the 43 switches in the SER report
use the programmable name parameters applied to the switch. Figure 13-4 illustrates the timing
relationship of the 43 switch and 62 timer.
