247
6
F
2
S
0
8
5
0
90
°
.
•
Check that the A-phase differential current Ida on the "Metering" screen coincides with the Id
mentioned above with an error within
±
7%.
End-to-end test setup
When the percentage restraint characteristic is checked, an end-to-end setup using two relays is
required.
<Testing at laboratory>
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 6.5.1.3 (a) shows the testing circuit of the
laboratory end-to-end test.
In case of two-terminal applications, the signal terminals CH1-TX1 and -RX1 of one relay are
directly connected to CH1-RX1 and -TX1 of another relay.
Note:
When the relays have an electrical telecommunications interface in accordance with
CCITT-G703-1.2.1 or an optical interface (Short wavelength light, GI, 2km class), the scheme
switch [D. test] must be set to “1” (= On) to test them under the direct connection of the
communication circuits.
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Summary of Contents for GRL100-701B
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