LS SV-iG5H Series, Manual, Page: 127 / 226

Advanced functions
113
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A11: Selects the MMC operation settings.
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A12: Decides the number of auxiliary motors to use.
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A13, A14: Sets the auxiliary motor start frequency.
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A15, A16: Sets the auxiliary motor stop frequency.
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A17, A18: The auxiliary motors turns on or off after the auxiliary motor stop delay time
elapses.
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A19: When the auxiliary motor stops, the main motor accelerates up to the auxiliary
motor restart frequency set at A13, 14 (Start Freq 1, 2) based on the acceleration time
set at A20 (PID Acc Time).
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A20: When an auxiliary motor starts, the main motor decelerates to the auxiliary motor
deceleration frequency set at A15, 16 (Stop Freq 1, 2) based on the deceleration time
set at A19 (PID Dec Time).
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A21: When [A21
Aux All Stop] is set to :No” during input to stopoperating, auxiliary
motors are turned off at the same time. When [A21 Aux All Stop] is set to “YES”,
auxiliary motors are turned off gradually based on time of [A18 Aux Stop DT].
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A22: Sets the operating priority of MMC. 0(FIFO) : Same as On/Off order of auxiliary
motors. 1(FILO): Opposite to On/Off order auxiliary motors.
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A26: Sets the start auxiliary motor
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I54, I55: Configure the output terminals to 25(MMC1), 26(MMC2) to use the terminals to
control the auxiliary motors.
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During PID operation, the auxiliary motors are turned on when the inverter frequency
reaches the start frequencies set at A13, 14 (Start freq 1, 2). The auxiliary motors stop
operating when the operation frequency decreases to the stop frequency set at A15, 16
(Stop Freq 1, 2).
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The following diagram describes the MMC basic sequence based on FILO and FIFO
settings and Aux All stop mode.
[MMC Basic operation(FILO)] [MMC Basic operation(FIFO)]