Control circuit
Installation and wiring
2 - 48
2.6.5
When using separate power supplies for the control circuit and the main circuit
Cable size for the control circuit power supply (terminals R1/L11 and S1/L21)
●
Terminal screw size: M4
●
Cable gauge: 0.75 mm
2
to 2 mm
2
●
Tightening torque: 1.5 Nm
Connection method
When a fault occurs, opening of the electromagnetic contactor (MC) on the inverter power supply
side results in power loss in the control circuit, disabling the fault output signal retention. Terminals
R1/L11 and S1/L21 are provided to hold a fault signal. In this case, connect the power supply terminals
R1/L11 and S1/L21 of the control circuit to the input side of the MC.
Do not connect the power cable to incorrect terminals. Doing so may damage the inverter.
FR-A820-00250(3.7K) or lower, FR-A840-00126(3.7K) or lower
Remove the upper screws.
Remove the lower screws.
Remove the jumper.
#
Connect the separate power supply cable for the control circuit to
the lower terminals (R1/L11,
S1/L21)
.
Fig. 2-35:
Power supply for control and main circuit
I002376E
I002846E
Fig. 2-36:
Detailed view of the terminals
MC
R/L1
S/L2
T/L3
R1/L11
S1/L21
Inverter
Remove the jumper
T/L3
S/L2
R/L1
S1/L21
R1/L11
Main circuit terminal block
#
Summary of Contents for FR-A800
Page 2: ......
Page 4: ......
Page 22: ...Contents XVIII ...
Page 30: ...Related manuals Introduction 1 8 ...
Page 122: ...Connection of stand alone option units Installation and wiring 2 92 ...
Page 180: ...Basic operation procedure JOG operation Basic operation 4 32 ...
Page 934: ...Check first when you have a trouble Protective functions 6 46 ...
Page 1031: ...Appendix EC Declarations of Conformity FR A800 A 47 ...
Page 1032: ...EC Declarations of Conformity Appendix A 48 ...
Page 1033: ...Appendix EC Declarations of Conformity FR A800 A 49 ...
Page 1034: ...EC Declarations of Conformity Appendix A 50 ...
Page 1035: ...Appendix EC Declarations of Conformity FR A800 A 51 A 5 2 EMC Directive ...
Page 1036: ...EC Declarations of Conformity Appendix A 52 ...
Page 1037: ...Appendix EC Declarations of Conformity FR A800 A 53 ...
Page 1038: ...EC Declarations of Conformity Appendix A 54 ...
Page 1039: ...Appendix EC Declarations of Conformity FR A800 A 55 ...
Page 1040: ...EC Declarations of Conformity Appendix A 56 ...
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