CHAPTER 10 PERIPHERAL EQUIPMENT

10.8 External Regenerative Resistor

The external regenerative resistor consumes regenerative power generated by the servomotor.

Use an external regenerative resistor if the elevating load is large and the operation frequency is

high.

Servo amplifier model

Built-in

Regenerative

resistor*

External

Regenerative

Resistor

Applicable

resistance [Ω]

RYH201F5-VV2

-

WSR-401

39 to 180

RYH401F5-VV2

-

(17W/68Ω)

39 to 90

RYH751F5-VV2

RYH152F5-VV2

20W/40Ω

20W/15Ω

WSR-152

(50W/15Ω)

13 to 47

8.2 to 27

RYH202F5-VV2

RYH302F5-VV2

45W/12Ω

DB11-2

(260W/10Ω)

8.2 to 20

8.2 to 13

RYH402F5-VV2

RYH502F5-VV2

60W/6Ω

DB22-2

(300W/5.8Ω)

3.9 to 8.2

3.9 to 6.8

* The allowable wattage of the built-in regenerative resistor varies according to the ambient

temperature.

Block diagram of main circuit section (Frame 1)

ExtEexrntearl nRael gBernaekriantgive

RReessiissttoor r

ＲＢ２

ＲＢ１

Ｐ(+)

Ｌ１

Ｌ２

Ｌ３

Ｎ(-)

FUSE

Inrush

current

suppression

resistor

Servo amplifier

Servomotor

10

Servomotor

Ｍ

Use the external regenerative resistor in the designated set without fail.

There is a risk of fire.

External Regenerative Resistor 10-19