Mitsubishi Electric FR-F820-00046 Instruction Manual page 392

Operating procedure
• Operation flowchart
Power supply ON
Setting the parameters
Start inverter operation
Constant-speed commercial
power supply operation
Deceleration (stop)
inverter operation
• Signal operation after setting parameters
Status MRS
OFF
Power ON
(OFF)
At start
OFF→ON OFF→ON OFF→ON ON
(Inverter)
During constant-speed
operation ON
(commercial power supply)
For deceleration,
switched to the inverter ON
operation (inverter)
Stop ON
• Pr.135 = "1" (open collector output terminal of inverter)
• Pr.136 = 2.0 s
• Pr.137 = 1.0 s (Set the time until MC3 is actually turned ON and the inverter and motor
are electrically connected. If the time is short, the restart may not function properly.)
• Pr.57 = 0.5 s
• Pr.58 = 0.5 s (Always set this to switchover from the commercial power supply operation
to the inverter operation.)
CS STF MC1
OFF → ON
OFF OFF
(OFF →
(OFF) (OFF)
ON)
ON→OFF ON ON
OFF→ON ON ON
ON ON→OFF ON
MC2 MC3
OFF OFF→ON External operation mode
(OFF) (OFF→ON) (PU operation mode)
OFF ON
MC2 turns ON after MC3 turns OFF.
OFF→ON ON→OFF
Delay time is 2 s (while coasting).
MC3 turns ON after MC2 turns OFF.
ON→OFF OFF→ON
Delay time is 4 s (while coasting).
OFF ON
5.11 (A) Application parameters
1
2
3
4
5
6
Remarks
7
8
9
10
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5. PARAMETERS