GE 869 - Page 189

CHAPTER 4: SETPOINTS DEVICE
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 4–57
Figure 4-12: Pushbuttons Logic Diagram
894163A1.CDR
SETPOINT Pushbutton 1 Function
SETPOINT Pushbutton 1 Lock Off (Flexoperand)
t
PKP
Pushbutton 1 Hold
0
SETPOINT
Self-Reset Latched Disabled FLEXLOGIC OPERAND Pushbutton 1 OFF
200
msec
0 msec
AND
PB
AND
LATCH
SET RST
Non Volatile Latch
`
Autoreset Function Disabled Enabled
AND
FLEXLOGIC OPERAND
Pushbutton 1 ON
t
PKP
0
OR
60 ms
0
TIMER
AND
`
AND
200 ms
0
TIMER
OR
OR
SETPOINT Drop-Out Timer
t
RST
0
SETPOINT Auto-Reset Delay
SETPOINT
AND
OR
Latched/Self-Reset
Latched
AND
FLEXLOGIC OPERAND
Pushbutton 1 OFF
FLEXLOGIC OPERAND
Pushbutton 1 ON
`
SETPOINT Flash Message Time
t
RST
0
SETPOINT PB 1 ID Text:
LCD MESSAGE
PB 1 OFF Text:
XXXXXXXXXX XXXXXXXXXX
ENGAGE MESSAGE
AND
`
SETPOINT Flash Message Time
t
RST
0
SETPOINT PB 1 ID Text :
LCD MESSAGE
PB 1 ON Text : XXXXXXXXXX XXXXXXXXXX
ENGAGE MESSAGE
PB LED
FLEXLOGIC OPERAND
IN-SERVICE