Yaskawa Varispeed-656 DC5 - Manual (Page 29)

3 WIRING
E-19
* 4. Set up a sequence whereby the Varispeed G7 starts operation and then the VS-656DC5 starts
after the power supply is turned ON, and the power supply is turned OFF after the Varispeed
G7, the motor, and the VS-656DC5 are stopped in this order.
Operating the Varispeed G7 without starting the VS-656DC5, or turning OFF the power sup-
ply while the VS-656DC5 is running may cause the VS-656DC5 to malfunction.
* 5. Interlock with the Inverter. (Refer to Interlocking with Inverters in Appendix B PRECAU-
TIONS ON VS-656DC5 APPLICATION.)
* 6. For models CIMR-D5A2022 to -D5A2075 of the 200 V Class and CIMR- D5A4022 to -
D5A4300 of the 400 V Class, the wiring was done prior to shipment. Connections are not
needed for CIMR-D5A2015 and -D5A4015.
The terminals r/
1
and /
2
in the above diagram are the terminal names for 200 V Class
VS-656DC5 with 37 to 75 kW. The terminal names are as follows respectively for each VS-
656DC5 capacity:
y 200 V Class 22 kW, 400 V Class 22 to 45 kW: /
2
, t/
3
( /
2
and
1
/
21
, t/
3
and t
1
/
31
are
connected respectively.)
y 400 V Class 75 and 160 kW: r/
1
, 400/
2
400
* 7. When a noise filter is attached on the VS-656DC5 power supply side, use a noise filter of the
reactor type (without a capacitor) such as finemet zero-phase reactor, and attach it behind the
MCCB at the power supply side. Do not use a capacitor-built-in type noise filter since the
harmonic components may overheat or damage the capacitor.
* 8. The wiring between the input AC reactor and the VS-656DC5 must be within 10 m.
* 9. The DC current bus bar wiring between the VS-656DC5 and the Inverter must be within 5 m.
* 10. If installing a circuit breaker or a magnetic contactor on the VS-656DC5 output (DC) side to
shut down the power supply in an emergency, observe the following precautions.
y Be sure to confirm that the charge lamps on the VS-656DC5 and the Inverter are not lit, and
then turn on the circuit breaker or contactor.If the circuit breaker or contactor is turned on
while power is supplied to the VS-656DC5 and the Inverter, an overcurrent may occur and
damage the circuit breaker or contactor.
y Be sure to confirm that the circuit breaker or contactor is turned on before the power is
turned on for the VS-656DC5.
Note: The standard type of Varispeed G7 models for all capacities can be connected to the VS-
656DC5.