LS ELECTRIC LSLV-H100 Series, Руководство пользователя

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Learning Advanced Features
5.44.1 Multiple Motor Control (MMC) Basic Sequence
Multiple motor control (MMC) is an operation based on PID control. During an MMC
operation, the main and auxiliary motors organically operate together.
During a PID operation, the auxiliary motors are turned on when the inverter frequency
reaches the start frequencies set at AP1-61
–65 (Start freq), and the difference between the
PID reference and feedback is bigger than the value set at AP1-50. Then, the auxiliary
motors stop operating when the operation frequency reach the stop frequency set at AP1-
70
–74 (Stop Freq 1–5) and the difference between the PID feedback and reference
becomes greater than the value set at AP1-50.
AP1-51 Acc Time
AP1-52 Dec Time
Parameters used when AP1-40 is set to
‘Single Ctrl’
When an auxiliary motor starts or stops, the main motor stops
the PID control, and performs general acceleration and
deceleration.
When an auxiliary motor starts, the main motor decelerates to
the auxiliary motor deceleration frequency set at AP1-70
–74
(Stop Freq 1
–5) based on the deceleration time set at AP1-52
(Dec Time).
When the auxiliary motor stops, the main motor accelerates up
to the auxiliary motor restart frequency set at AP1-61
–65 (Start
Freq 1
–5) based on the acceleration time set at AP1-51 (Acc
Time).
AP1-53 Aux Start DT
AP1-54 Aux Stop DT
The auxiliary motors turns on or off after the auxiliary motor stop
delay time or the auxiliary motor restart delay time elapses, or if
the difference between the current reference and the feedback is
greater than the value set at AP1-50 (Actual Pr Diff).
AP1-61
–65 Start Freq1–5
Sets the auxiliary motor start frequency.
AP1-70
–74 Stop Freq 1–5 Sets the auxiliary motor stop frequency.
AP1-95 AuxRunTime Sel Selects auxiliary motor to be used in AP1-96 and AP1-97.
AP1-96 AuxRunTime Day Indicates operating time(day) selected in AP1-95.
AP1-97 AuxRunTime Min Indicates operating time of auxiliary motors selected in AP1-95.
AP1-98 AuxRunTime Clr Deletes operating time of auxiliary motors.
OUT-31
–35 Relay 1–5
OUT-36 Q1 Define
Configure the output terminals to ’21 (MMC)’ to use the terminals
to control the auxiliary motors. The number of the configured
output terminals determines the total number of auxiliary motors
to be used.