Toshiba GR-200-5 Instruction Manual page 329

Figure 2.27-3 shows special relays provided in ATO: undervoltage (UVATO1,2) and overcurrent
(OCATO) elements. They are used for ATO judgement to serve in versatile architectures (see
Figure 2.27-1).
Relay element for ATO function
○
1 Phase UV relay
○
2 One phase UV
○
3 Phase OC relay
Figure 2.27-3 ATO judgement customized with UV&OC using PLC function
8000021C20
UV 1
8000021C21
ATO1
2
8000021C22
3
UVATO2
8000031C20
A
OC
8000031C21
ATO
B
8000031C22
C
- 309 -
8000001B69
UVATO1-OR
≥1
8100001B6A
UVATO1-AND
&
8000001C23
UVATO2
8000001B6B
OCATO-OR
≥1
8100001B6C
OCATO-AND
&
6F2T0207 (0.01)
GRE200 (5,6)