CHAPTER 4: SETPOINTS
SYSTEM
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
4–83
Table 4-20: Breaker status with both contacts 52a and 52b configured
Figure 4-20: Breaker Connected/Disconnected (Racked-In/Racked-Out) Detection
Figure 4-21: Breaker State Detection logic diagram
Yes
No
52a contact open
52a contact closed
No
Yes
52b contact closed
52b contact open
No
No
Breaker Not Configured
52a Contact Status
52b Contact Status
Breaker Status
Off
On
BKR Opened
On
Off
BKR Closed
On
On
BKR Unknown State
Off
Off
BKR Unknown State
52a Contact Configured
52b Contact Configured
Breaker Status
Open
Closed
SETPOINT
BKR 1 CONNECTED
FlexLogic operand =1,
Off = 0
FlexLogic operand status
AND
OR
FLEXLOGIC OPERANDS
BKR 1 Disconnected
FLEXLOGIC OPERANDS
BKR 1 Connected
894207A1.cdr
SETPOINT
52a CONTACT
FlexLogic operand =1,
Off = 0
SETPOINT
52b CONTACT
FlexLogic operand =1,
Off = 0
FlexLogic operand
(BKR 52a state)
FlexLogic operand
(BKR 52b status)
AND
AND
XOR
30 ms
S
R
PB LED: BREAKER CLOSED
PB LED: BREAKER OPENED
LED: ALARM
LATCH
OR
AND
OR
OR
RESET
(command)
AND
AND
FLEXLOGIC OPERANDS
BKR 1 Closed
FLEXLOGIC OPERANDS
BKR 1 Opened
FLEXLOGIC OPERANDS
BKR 1 Unkwn State
OR
At least one contact programmed
(to Trip and Close output relays)
TARGET MESSAGE
BKR 1 NOT CONFIGURED
FLEXLOGIC OPERANDS
BKR 1 Configured
892740A2.cdr
Summary of Contents for 869
Page 10: ...VIII 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL ...
Page 127: ...CHAPTER 3 INTERFACES SOFTWARE INTERFACE 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL 3 49 ...
Page 129: ...CHAPTER 3 INTERFACES SOFTWARE INTERFACE 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL 3 51 ...
Page 538: ...4 406 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL TESTING CHAPTER 4 SETPOINTS ...
Page 578: ...6 22 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL FLEXELEMENTS CHAPTER 6 METERING ...
Page 592: ...7 14 869 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL CLEAR RECORDS CHAPTER 7 RECORDS ...