Wiring
Connection of stand-alone option units
FR-D700 SC EC
3 - 39
Connection example with the FR-BR(-H) type resistor
If the control contacts are only specified for 230V control power you must install a transformer
when using a 400V power supply.
Normal: across TH1-TH2 ... close, Alarm: across TH1-TH2 ... open
Connect the inverter terminals (P/+, N/
−
) and brake unit terminals so that their terminal
signals match with each other. (Incorrect connection will damage the inverter.)
A jumper is connected across BUE and SD in the initial status.
The wiring distance between the inverter, brake unit and resistor unit should be within 5m.
If twisted wires are used, the distance should be within 10m.
002045E
Fig. 3-31:
Connection with the brake unit FR-BU2
b
CAUTION:
●
If the transistors in the brake unit should become faulty, the resistor can be
unusually hot, causing a fire. Therefore, install a magnetic contactor on the
inverters input side to configure a circuit so that a current is shut off in case of fault.
●
Do not remove a jumper across terminal P/+ and P1 except when connecting a DC
reactor.
MC
ON
3-phase AC
power supply
OFF
Inverter
≤
5m
M
3~
Motor
T
Содержание FR-D720S SC EC
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Страница 24: ...Description of the case Product checking and part identification 1 4 ...
Страница 108: ...Operation panel Operation 4 20 ...
Страница 436: ...Setting for the parameter unit and operation panel Parameter 6 286 ...
Страница 484: ...Measurements on the main circuit Maintenance and inspection 8 14 ...
Страница 504: ...Specification change Appendix A 20 ...
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Страница 510: ...Index Appendix A 24 ...
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