Toshiba GR-200 Series Instruction Manual page 698

Fail output and BO circuit drive
(iii)
Automatic supervision function can drive Fail contact (N/C or "b" contact) on BIO module at
T1† when an error occurs without warning. Note that, the drives for respective BO circuits‡
on BIO will be locked out when serious error (Level 1=Critical error) is detected.
Table 10.1-4 FAIL contact, BO, LED outputs depending on levels
Error
Levels
0: No error
1:Serious
2:Serious(Comm.)
3:Minor
4:Alarm
5:Warning
Error outputted with FAIL contact†
If serious error (Level1) is detected by Automatic supervision function, N/C contact will turn
to be closed. Table 10.1-4 shows N/O contact is open, except serious error.
Locking out of BO circuit drive‡
BO operation will be locked out, when serious error (Level1) is detected. Note that it will stop
issuing trip commands on BO circuits. If the error is cleared, the operations will be back.
†Note: See Chapter
‡Note: BO is discussed in Chapter
Affection of application operation by error levels
(iv)
The error levels influence the operation of relay and control and monitoring application.
Table 10.1-5 Operation states in the IED applications affected by the error levels
Levels
0: No error
1: Serious
2: Serious (Comm.)
3: Minor
4: Alarm
5: Warning
†Note: Serious (Comm.) can be related to communication of tele-protection applications.
FAIL† contact outputs
Screw No. 19 (N/C)
Open
Closed
Open
Open
Open
Open
Technical description: DC power and Fail terminals
Technical description: Binary output circuit
Relay applications
–
Stopped
Not affected†
Not affected
Not affected
Not affected
- 679 -
BO‡ locked out
Not locked out
Locked out
Not locked out
Not locked out
Not locked out
Not locked out
Control and monitoring applications
–
Stopped
Not affected
Stopped
Not affected
Not affected
6F2T0200 (0.15)
Error
LED
Off
On
On
On
Off
Off
. (→p. 551).
(→p. 533).
Notes
GRE200 (1,2)