CERUS CI-007-P2 - MMC AUX-1 Motor Start;Stop Frequency and Delay; MMC Acceleration;Deceleration Time and Frequency; MMC AUX Motor Start;Stop Differential Gain

Chapter 6 - Parameter Description
6-7
SET  Stop Freq 1
56 40.00 Hz
SET  Aux Stop DT
61 5.0 sec
SET  MMC Dec Time
64 10.0 sec
SET  MMC DecFreq
65 55.00 Hz
SET  AuxStartDiff
66 2.0 %
SET  AuxStopDiff
67 2.0 %
SET  Start Freq 1
52 59.00 Hz
SET  Aux Start DT
60 5.0 sec
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! 
If SET-50 is set to Yes, SET-51 is set to more than
0 and VFD runs at speed exceeding SET-52 for
SET-60 time delay, the AUX motor #1 will start.
SET-60 time delay to start AUX motor works for
all four AUX motors.
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! 
When VFD runs below SET-56 for SET-61 time
delay, the AUX motor #1 will stop. SET-61 time
delay to stop AUX motor works for all four AUX
motors.
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When VFD runs at
speed exceeding SET-
53 with AUX-1 motor running for SET-60 time
delay, the AUX motor #2 will start.
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When VFD runs at
speed below SET-57
with AUX-1 motor running for SET-61 time delay,
the AUX motor #2 will stop.
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When VFD runs at
speed exceeding SET-
54 with AUX-1 and AUX-2 motors running for
SET-60 time delay, the AUX motor #3 will start.
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When VFD runs at
speed below SET-58
with AUX-1 and AUX-2 motors running for SET-
61 time delay, the AUX motor #3 will stop.
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When VFD runs at speed exceeding SET-55
with AUX-1, AUX-2 and AUX-3 motors running
for SET-60 time delay, the AUX motor #4 will
start.
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When VFD runs at
speed below SET-59
with AUX-1, AUX-2 and AUX-3 motors running
for SET-61 time delay, the AUX motor #4 will
stop.
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"2'! 
When an AUX motor stops based on MMC control,
the VFD will ramp up to SET-63 speed using SET-
62 acceleration time to minimize the temporary
drop in system pressure.
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"2'! 
When an AUX motor starts based on MMC control,
the VFD will ramp down to SET-65 speed using
SET-64 deceleration time to minimize the
temporary surge in system pressure.
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>>"!  !-
If PID control is enabled and SET-66 and/or SET-
67 are greater than 0.0%, there will be an additional
Feedback Level condition that must be met in order
to start or stop an AUX motor:
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SET  Start Freq 2
53 59.00 Hz
SET  Stop Freq 2
57 40.00 Hz
SET  Start Freq 3
54 59.00 Hz
SET  Stop Freq 3
58 40.00 Hz
SET  Start Freq 4
55 59.00 Hz
SET  Stop Freq 4
59 40.00 Hz
SET  MMC Acc Time
62 2.0 sec
SET  MMC AccFreq
63 30.00 Hz