Input And Output Signals - Toshiba GRL100-701B Instruction Manual

3.2 Input and Output Signals

3.2.1 Input Signals
AC input signals
Table 3.2.1.1 shows the AC input signals necessary for the GRL100-700 series and their
respective input terminal numbers. The AC input signals are input via terminal block TB1. See
Appendix G for external connections.
The GRL100-700 series require 5 current inputs and 3 voltage inputs, and also required an
additional voltage signal using voltage and synchronism checks for the autoreclose function. For
single or double busbar applications, one voltage signal is required, while for one-and-a-half
circuit breaker arrangements, two voltage signals are required. (For the busbar and line voltages,
see Figure 2.15.2.7.)
Binary input signals
Table 3.2.1.2 shows the binary input signals necessary for the GRL100, their driving contact
conditions and functions enabled.
Input signals are configurable and depend on the GRL100 models. See Appendix G for the
default settings and external connections.
Note: For the three-phase binary input signals of Interlink A, B and C, interlink signals of the
parallel line are applied.
The interlink signals are assigned to the binary output relays as LINK-A1, -B1 and -C1 in
two-terminal line application and as LINK-A1, -B1 and -C1 and LINK-A2, -B2 and -C2 in
the three-terminal line application. For the default setting, see Appendix D.
Two-terminal line application: Apply the LINK-A1, -B1 and -C1 contacts of the parallel line
to the binary input signals of Interlink A, B and C (Terminal 1).
Three-terminal line application: Apply the LINK-A1, -B1 and -C1 contacts of the parallel
line to Interlink A, B and C (Terminal 1) and LINK-A2, -B2 and -C2 contacts to Interlink A,
B and C (Terminal 2) respectively.
The binary input circuit of the GRL100 is provided with a logic level inversion function as
shown in Figure 3.2.1.1. Each input circuit has a binary switch BISW which can be used to select
either normal or inverted operation. This allows the inputs to be driven either by normally open
or normally closed contact.
If a signal is not input, the function concerned is disabled.
Table 3.2.1.1 AC Input Signals
Terminal No. GRL100-701, 702, 711, 712
1-2 A-phase Current
3-4 B-phase Current
5-6 C-phase Current
7-8 Residual Current
9-10 Residual Current of parallel line
11-14 A-phase Voltage
12-14 B-phase Voltage
13-14 C-phase Voltage
15-16 Voltage for Autoreclose
17-18 Voltage for Autoreclose
20 (earth)
 169 
6 F 2 S 0 8 5 0