Toshiba GRL150-100 Series Instruction Manual page 135

End-to-end test setup
When the percentage restraint characteristic is checked, an end-to-end setup using two relays is
required.
If the relays can be collected and tested at a laboratory, the end-to-end test is possible by directly
connecting their communication ports. Figure 6.5.1.2 shows the testing circuit of the laboratory
end-to-end test.
The signal terminals of one relay are directly connected to those of another relay as shown in
Figure 6.5.1.2.
+
A
Single-phase
current
source
−
+
A
Single-phase
current
source
−
DC
power
supply
Note(*): Connect TX and RX of the relay A to RX and TX of the relay B respectively in case of Fibre optic.
Connect TB3-A16 and -A17 of the relay A to TB3-A16 and -A17 of the relay B in case of Pilot wire.
Figure 6.5.1.2 End-to-end Test Setup at Laboratory
φ
⎯
134
Relay A: GRL150
TB3-A16
TB1
-1
-A17
I a
-2
TB2
-A9
-B9
Monitoring
jack
E
Relay B: GRL150
TB1
-1
I a
-2
TB3-A16
TB2
-A9
-B9
Monitoring
jack
E
⎯
6 F 2 S 0 8 2 8
TX
(*)
RX
A
0V
TX
RX
-A17
A
0V