Removal And Reinstallation Of The; A800 Series Inverters - Mitsubishi Electric FR-A800 Series Beginner's Manual

Removal and reinstallation of the front cover
2.4 Removal and reinstallation of the front cover
Before connecting the inverter you must remove the front cover so that you can access the terminal
blocks. The different series have different cover types and the procedure for removing and reinstall-
ing the cover varies. However, the safety warnings below must always be observed for all inverter
models.
WARNING:
P
● Always SWITCH OFF the mains power supply before removing the front cover or performing
any work on the inverter.
● After switching off the power WAIT AT LEAST 10 MINUTES before removing the front cover to
allow the charge in the inverter's power capacitors to fall to a safe level and check for residual
voltage between terminal P/+ and N/- with a meter etc., to avoid a hazard of electrical shock.
2.4.1 FR-A800 series inverters
Removal and reinstallation of the parameter unit (FR-A820/A840/A842 models)
Loosen the two screws on the parameter unit. (These screws cannot be removed.)
Press the upper edge of the parameter unit while pulling out the parameter unit.
To reinstall the parameter unit, align its connector on the back with the PU connector of the inverter,
and insert the parameter unit. After confirming that the parameter unit is fit securely, tighten the
screws. (Tightening torque: 0.40 to 0.45 Nm)
2 - 4
Introduction to the inverters