GE MM200 - Page 99

CHAPTER 4: SETPOINTS CONTROL ELEMENTS
MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 4–29
Figure 4-7: Power failure restart logic diagram
SETTING
= Enabled
= Disabled
PFM FUNCTION
INPUT
PFR INHIBIT
INPUT
UV INPUT
RESET PFM
OR
AND
S
R
SETTING
time < t
1
t = PF time
1
Latch
S
R
AND
SETTING
RESTART TIME DELAY
t
pu
0
OR
TRIP - POWER FAILURE
ANY STOP
EXCEPT PFM
PFM in PROGRESS
PFM STOP
RUN
RESET
time > t
1
RESET
RESTART
RESET PFM
RUNNING
Hold all timers, counters, and latches in reset state
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