Input And Output Signals; Ac Input Signals; Binary Input Signals - Toshiba GRE110 Instruction Manual

3.2 Input and Output Signals

3.2.1 AC Input Signals

Table 3.2.1 shows the AC input signals necessary for the GRE110 model and their respective input
terminal numbers.
Term. No.
of TB1
1-2
3-4
5-6
7-8

3.2.2 Binary Input Signals

The GRE110 provides 2 (Model 400/420/820) or 6 (Model 401/421/402/422/821) programmable
binary input circuits. Each binary input circuit is programmable, and provided with the function of
Logic level inversion , detection threshold voltage change and Function selection.
Logic level inversion and detection threshold voltage change
The binary input circuit of the GRE110 is provided with a logic level inversion function, a pick-up
and drop-off delay timer function and a detection threshold voltage change as shown in Figure
3.2.1. Each input circuit has a binary switch BISNS 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
contacts. Where the driving contact meets the contact conditions then the BISNS can be set to
"Norm" (normal). If not, then "Inv" (inverted) should be selected. The pick-up and drop-off delay
times can be set 0.0 to 300.00s respectively.
The binary input detection nominal voltage is programmable by the user, and the setting range
varies depending on the rated DC power supply voltage. In the case that a 110V / 220Vdc rated
model is ordered, the input detection nominal voltage can be set to 48V, 110V or 220V for BI1 and
Table 3.2.1 AC Input Signals
(a) model 400 / 401 / 420 / 421 / 820 /821
400 / 401
A phase current A phase current
B phase current B phase current
C phase current C phase current
Zero sequence
Residual current (E)
(b) model 402 / 422
Term. No.
of TB2
402
A phase current
1-2
B phase current
3-4
C phase current
5-6
Residual current (E)
7-8
 64 
Model
420 / 421 820 / 821
A phase current
C phase current
Zero phase voltage
Zero sequence
current (SE) current (SE)
Model
422
A phase current
B phase current
C phase current
Zero sequence
current (SE)
6 F 2 T 0 1 7 2