Input And Output Signals; Binary Input Signals - Toshiba GRL150-100 Series Instruction Manual

3.2 Input and Output Signals

3.2.1 AC Input Signals
Table 3.2.1.1 shows the AC input signals necessary for the GRL150 model and their respective
input terminal numbers.
3.2.2

Binary Input Signals

The GRL150 provides eight programmable binary input circuits. Each binary input circuit is
programmable by PLC function, and provided with the function of Logic level inversion.
The binary input circuit of the GRL150 is provided with a logic level inversion function and a
pick-up and drop-off delay timer function as shown in Figure 3.2.2.1. 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.
Logic level inversion function, and pick-up and drop-off delay timer settings are as follows:
Element
BI1SNS - BI8SNS
BI1PUD - BI8PUD
BI1DOD - BI8DOD
The operating voltage of binary input signal is typical 74V DC at 110V/125V DC rating and 138V
DC at 220/250V DC. The minimum operating voltage is 70V DC at 110/125V DC rating and
125V DC at 220/250V DC.
The binary input signals can be programmed to switch between four settings groups. Change of
active setting group is performed by PLC (Signal No. 2640 to 2643).
Four alarm messages (Alarm1 to Alarm4) can be set. The user can define a text message within 16
characters for each alarm. The messages are valid for any of the input signals BI1 to BI8 by setting.
Then when inputs associated with that alarm are raised, the defined text is displayed on the LCD.
These alarm output signals are signal Nos. 2652 to 2655.
Table 3.2.1.1 AC Input Signals
Term. No.
of TB1
100, 400
A phase current
1-2
B phase current
3-4
C phase current
5-6
---
7-8
Contents
Binary switch
Delayed pick-up timer
Delayed drop-off timer
Model
110, 410 120, 420
A phase current A phase current
B phase current B phase current
C phase current C phase current
Residual current Zero sequence
(E) current (SE)
Range
Norm/ Inv
0.00 - 300.00s
0.00 - 300.00s
⎯ ⎯
56
6 F 2 S 0 8 2 8
Step Default
Norm
0.01s 0.00
0.01s 0.00