3 Wiring and Connection
3.8.4 Installation Standards
3-40
Example: Set 20 W (100 W
×
20%) for the 100-W regenerative resistor unit with natural convection
cooling method:
Pn600 = 2 (unit: 10 W)
3.8.4
Installation Standards
Observe the following installation standards when you use a regenerative resistor unit specified by Yaskawa.
Provide at least 70 mm on each side of the unit and at least 200 mm at both the top and bottom of the unit to
enable fan and natural convection cooling.
If you use a non-specified regenerative resistor unit, follow the specifications of the regenerative resistor unit
when you install it.
• When the regenerative resistor unit for power are used at the rated load ratio, the
resistor temperature increases to between 200
°
C and 300
°
C. The resistors must be
used at or below the rated values. Check with the manufacturer for the resistor’s load
characteristics.
• Set the regenerative resistor capacity in parameter Pn600 of the multi-winding drive
unit. Do not mistakenly change the SERVOPACK parameter.
70 min.
70 min.
200 min.
200 min.
Mounting
direction
Units: mm
Up
