Mitsubishi Electric FREQROL Manuel d'instructions Page 494

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Inspection Maintenance and inspection
8 - 10
8.1.8 Inverter replacement
The inverter can be replaced with the control circuit wiring kept connected. Before replacement,
remove the wiring cover of the inverter.
Remove the installation screw of the control circuit terminal block.
Pull the control circuit terminal downward.
Using care not to bend the pins of the inverter’s control circuit connector, reinstall the control
circuit terminal block and fix it with the installation screw.
P
WARNING:
Before starting inverter replacement, switch power off, wait for at least 10 minutes,
and then check the voltage with a tester and such to ensure safety.
I001943E
Fig. 8-7: Removal of the terminal block
I001944E
Fig. 8-8: Reinstallation of the terminal block
NOTE
Calibration bias and gain changes when changing the control circuit terminal block. Use
Pr. 645 and C1 (Pr. 901) to calibrate again in that case.
Installation screw
Installation
screw
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