Yaskawa YASNAC PC NC Maintenance Manual - Manual (Page 119)

PC NC Maintenance Manual The VS-626M5
4-98
Figure 4.11: Using Input Noise Filter
Figure 4.12: Using Input Noise Filter
2. Wiring Precautions for Converter Control Power Supply Input
Make sure to connect the MCCB with the converter control power supply
input terminals A1/r and A2/t to protect wiring.
3. Wiring Precautions for Main Circuit between Converter and Inverter
Connection of Main Circuit DC Power Supply
Connect the converter main circuit DC output terminals P/_ and N/_ to the
inverter main circuit power supply input terminals P/_ and N/_ using an
exclusive-use connection bus bar. Secure the bus bar using all the power
terminal screws, and tighten to a torque value of 4 to 5 N·m.
`
MCCB
MCCB
M
VS-
656MR5 VS-
626M5
`
MCCB
MCCB
M
VS-
656MR5 VS-
626M5
Power
Supply
Other Control Device
General
Noise
Filter
Power
Supply
Other Control Device
General
Noise
Filter
A general-purpose noise
filter will not be effective.
L
L
`
MCCB
MCCB
M
VS-
656MR5 VS-
626M5
Power
Supply
Other Control Device
By installing an isolating
transformer on the power
side of another control de
vice, the same result as
with installing a noise f
L
By installing an isolating transformer
on the power side of another control
device, the same result is achieved as
with installing a noise filter.