263
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.
Summary of Contents for LSLV-H100 Series
Page 17: ...Preparing the Installation 4 37 90 kW 3 Phase ...
Page 18: ...Preparing the Installation 5 110 132 kW 3 Phase ...
Page 19: ...Preparing the Installation 6 160 185 kW 3 Phase ...
Page 20: ...Preparing the Installation 7 220 250 kW 3 Phase ...
Page 21: ...Preparing the Installation 8 315 400 kW 3 Phase ...
Page 22: ...Preparing the Installation 9 500 kW 3 Phase ...
Page 35: ...Installing the Inverter 22 ...
Page 50: ...37 Installing the Inverter Input and Output Control Terminal Block Wiring Diagram ...
Page 104: ...91 Learning Basic Features 0 10 V Input Voltage Setting Details V1 Quantizing ...
Page 181: ...168 Learning Advanced Features PID Command Block ...
Page 182: ...169 Learning Advanced Features ...
Page 183: ...170 Learning Advanced Features PID Feedback Block ...
Page 184: ...171 Learning Advanced Features PID Output Block ...
Page 185: ...172 Learning Advanced Features PID Output Mode Block ...
Page 198: ...185 Learning Advanced Features EPID1 Control block ...
Page 199: ...186 Learning Advanced Features EPID2 Control block ...
Page 220: ...207 Learning Advanced Features ...
Page 235: ...222 Learning Advanced Features The Time Chart for the Exception Day ...
Page 506: ...Table of Functions 493 ...
Page 520: ...Table of Functions 507 8 16 4 Cooling Tower MC4 Group ...
Page 549: ...Troubleshooting 536 ...
Page 569: ...Technical Specification 556 11 3 External Dimensions 0 75 30 kW 3 phase 37 90 kW 3 phase ...
Page 570: ...Technical Specification 557 110 185 kW 3 phase ...
Page 601: ...588 ...
Page 602: ...589 ...
Page 603: ...590 ...