Inspection item
122
PRECAUTIONS FOR MAINTENANCE AND INSPECTION
Removal and reinstallation precautions
Precautions to be taken when removing or reinstalling the control circuit terminal block are shown below. Observe the
following precautions and handle the inverter properly to avoid malfunctions or failures.
• To remove or reinstall the control circuit terminal block, keep it upright so that it is parallel with the inverter.
• To install the control circuit terminal block, slide it upward so that the tongues on the inverter slot into the grooves on
theterminal block.
• Check that the terminal block is parallel to the inverter and the pins on the inverter control circuit connector are not bent.
After checking proper connection, fix the terminal block in place with two screws.
• Do not tilt the terminal block while tightening the screws or removing it from the inverter. (Otherwise, a stress applied to the
control circuit terminal block or the control circuit connector may cause damage to them.)
• After replacing the control terminal block, connect the jumper connector to the correct position in accordance with the control
logic of input signals. (Refer to page 38.)
Tighten the screws.
Control circuit terminal block
Inverter's control
circuit connector
A
Slot the tongue into the groove.
Insert the
terminal block
parallel to the
inverter.
View from side A
Control circuit terminal block
Inverter's control
circuit connector
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