Toshiba GR200 Series Instruction Manual page 376

Scheme logic and settings
2.27.2
Figure 2.27-4 shows the scheme logic of the OSTV function. The user should set scheme switch
[OSTV-EN] On when the OSTV function is required to operate. The user should note that the
OSTV function should operate together multi-level overcurrent elements (OCMFS), which is
provided in the Failsafe function (FS. For more information of FS, see Chapter
application: Fail safe
8000011C23
α
OSTV-1 ≥1
β
8100021C23
α
≥1
OSTV-2
β
OSTV-EN
On
800000EBB0 OSTV BLOCK
From FS
OCMFS_OP_SEP
The signal output of the OSTV function is directed by the scheme switch [OSTV-Output].
When BO is set for [OSTV-Output], the OSTV signal is issued for the binary output circuit of
binary IO modules (BIO
is issued for the trip circuit (TRC
Note: For more information about the binary output circuit, see Chapter
1
description: Binary IO module
Note: The TRC function is discussed separately. See Chapter
2
circuit
The can use PLC connection point 'OSTV_BLOCK' to program blocking the operation of
the OSTV function, if the user wishes to stop the operation by receiving an external signal.
).
t 0
&
≥1
0.1s
Trip
OSTV-Output
BO
1
Figure 2.27-4 OSTV logic
). Conversely, when Trip is set for the [OSTV-Output], the OSTV signal
1
).
2
.
- 353 -
8200001B61
&
≥1
&
.
6F2S1914 (0.49)
OSTV-OPT
To TRC
OSTV-OPT-TRIP
OSTV-ARC-BLOCK
Technical
Relay application: Trip
GRL200 (Soft 033 & 037)
Relay