Mitsubishi Electric FR-A820-00046 User Manual

Mitsubishi Electric FR-A820-00046

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INDUSTRIAL AUTOMATION

MITSUBISHI ELECTRI

C

MITSUBISHI ELECTRI

C

FR-A800

Inverter

Instruction Manual

FR-A820-00046(0.4K) to 04750(90K)(-E)

FR-A840-00023(0.4K) to 06830(280K)(-E)

FR-A842-07700(315K) to 12120(500K)(-E)

FR-A846-00023(0.4K) to 03610(132K)(-E)

Art. no.: 274661

01 06 2017

Version G

Version check

Table of Contents

Questions and Answers:

R
Richard McdonaldAug 3, 2025
Why Mitsubishi Electric FR-A820-00046 Inverter motor does not run at the correct speed?
- S
  Samantha CarterAug 3, 2025
  If the Mitsubishi Electric Inverter's motor speed doesn't match the command speed, first verify that the speed command from the controller is correct and implement EMC measures to reduce noise. If the command speed and the speed recognized by the inverter are different, adjust the bias and gain (Pr. 125, Pr. 126, C2 to C7, C12 to C15) of the speed command again. Also, check the setting of Pr. 369 (Pr. 851) "Number of encoder pulses" (vector control).
B
bowmankarenAug 14, 2025
Why Mitsubishi Electric FR-A820-00046 speed does not accelerate to the command speed?
- M
  Michael RodriguezAug 14, 2025
  If the Mitsubishi Electric Inverter's speed doesn't accelerate to the command speed, it might be due to a torque shortage or the torque limit is operating. In this case, raise the torque limit and consider increasing the capacity. Also, speed deviation occurs under P (proportional) control when the load is heavy, so select PI control.
K
Kristin AustinAug 27, 2025
How to fix Mitsubishi Electric FR-A820-00046 Inverter speed when it does not accelerate to the command speed?
- J
  James JohnsonAug 27, 2025
  If the speed of your Mitsubishi Electric Inverter does not accelerate to the command speed, it may be due to a torque shortage. Try raising the torque limit. Also, increasing the capacity may help. If only P (proportional) control is performed, and the load is heavy, select PI control to prevent speed deviation.

Mitsubishi Electric FR-A820-00046 Specifications

General

Brand	Mitsubishi Electric
Model	FR-A820-00046
Category	Inverter
Language	English

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