Toshiba GR-200-5 Instruction Manual page 210

of the trip command is required, the user can set Alarm for the scheme switch [OVG1-UseFor].
†Note: For more information of the trip circuit, see Chapter 2.23.
Execution of OVG function
(iii)
Set On for scheme switch [OVG1-EN]. Otherwise, set Off for the scheme switch [OVG1-EN] if
the OVG1 element is not required to operate.
Scheme logic
2.17.5
Figure 2.17-4 shows the OVG1 function logic. Signal connection point "OVG1_BLOCK" is
provided for the block of the operation of the OVG1 element. For testing, the OVG1-PU element
is provided; it generates a pick-up signal when the entering voltage is excesses of the threshold
anytime. Thereby, in the IDMT characteristic, using both monitoring points "8000011C23" and
"8000011C27" can facilitate to measure the pickup time after the excess.
DT
IDMT
OVG1-Timer
Original
OVG1-EN
On
8000011C23
OVG1
8000011C27
OVG1 PU
800001EBB0 OVG1_BLOCK
Block
OVG1-VTFBlk
From VTF
VTF_DETECT
From PROT COMMON
CB_LOSS_PHASE
≥1
&
&
≥1
&
1
Figure 2.17-4 OVG1 logic
- 190 -
TOVG1
t 0
&
≥1
0.00 to 300.00s
&
&
&
Trip
OVG1-UseFor
Alarm
6F2T0207 (0.01)
To Grouping logic
8000011B60
OVG1-OPT
8000011B23
OVG1-OPT-TRIP
8100021B66
OVG1-OPT-ALARM
GRE200 (5,6)