Wiring
Connection of stand-alone option units
FR-D700 SC EC
3 - 33
When the power supply is 400V class, install a step-down transformer.
쑶
Handling of the inverter output side magnetic contactor
Switch the magnetic contactor between the inverter and motor only when both the inverter and
motor are at a stop. When the magnetic contactor is turned on while the inverter is operating,
overcurrent protection of the inverter and such will activate. When an MC is provided for switch-
ing to the commercial power supply, for example, switch it on/off after the inverter and motor
have stopped.
Example
쑴
As shown below, always use the start signal (ON or OFF across terminals STF or STR-PC)
to make a start or stop. (Refer to section 6.9.4.)
I002080E
Fig. 3-23:
Example for connection of an inverter
R/L1
S/L2
T/L3
U
V
W
MCCB
MC
PC
STF(STR)
A
B
C
RA
MC
RA
MC
MC
RA
Power
supply
Inverter
To the
motor
Operation preparation
OFF
ON
Stop
Start/Stopp Operation
Start
T
Содержание FR-D720S SC EC
Страница 2: ......
Страница 4: ......
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 ...
Страница 505: ......
Страница 506: ......
Страница 510: ...Index Appendix A 24 ...
Страница 511: ......