Mitsubishi Electric FR-F806-E Hardware Instruction Manual page 104

Relay output terminals
• To prevent a contact fault, etc., relays must be replaced according to the cumulative number of switching times (switching
life).
• The control terminal block must be replaced in case of failure of either relay between the relay output terminals C1 and B1
or A1, or terminals C2 and B2 or A2. (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
5.1.7
Precautions for removal and reinstallation of the
control circuit terminal block
The FR-F800 series inverter has a removable control circuit terminal block, which can be replaced with a new one or a control
terminal option. The following are the precautions to remove or reinstall the control circuit terminal block.
Observe the following for proper handling to avoid malfunctions or failures of the inverter.
• 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 groove on the terminal block fits over the tongue on the
inverter.
• Check that the terminal block is parallel with the inverter and the pins of the inverter's control circuit connector are not bent.
After checking the proper connection, fix the terminal block with two screws.
A
Insert the terminal block
parallel into the inverter.
NOTE
• 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.)
Fit the groove over the tongue.
Fasten the screws.
Inverter's control circuit
PRECAUTIONS FOR MAINTENANCE AND INSPECTION
page 36.))
connector
View from A side
Inspection item
Control circuit
terminal block
5
103