Mitsubishi Electric FR-F820-00077 Instruction Manual page 566

(A) Application parameters
Pr. 579 = 0
Pr. 579 = 1
Pr. 579 = 2
Motor 1 (M1)
Motor 2 (M2)
Motor 3 (M3)
Motor 4 (M4)
Pr. 579 = 3
The starting order of motors is M2 → M3 → M1 if the previous order was M1 → M2→ M3.
The motor starts in the order of elapsed time after completion of the previous inverter-driven operation, from
the longest to the shortest. (The motor that has not been driven by the inverter for the longest time starts first.)
Fig. 5-185:
NOTES The motor 1 (M1) starts first when power is turned ON for the first time or after inverter reset.
When the Pr. 578 or Pr. 579 setting has been changed, the motor 1 (M1) starts first.
5 - 394
Flow rate Q
Qmax
Q3
Q2
Q1
Motor 1 (M1)
Motor 2 (M2)
Motor 3 (M3)
Motor 4 (M4)
Motor 1 (M1)
Motor 2 (M2)
Motor 3 (M3)
Motor 4 (M4)
Motor 1 (M1)
Motor 2 (M2)
Motor 3 (M3)
Motor 4 (M4)
Flow control by auxiliary motors
Parameters
Time
Driven by
inverter
Driven by
commercial
power
supply
Stop
I003051E