SERVOPACK Peripheral Devices
564
Regenerative Resistors
Types of Regenerative Resistors
The following regenerative resistors can be used.
•
Built-in regenerative resistors: Some models of SERVOPACKs have regenerative resistors built into
them.
•
External regenerative resistors: These resistors are used when the smoothing capacitor and built-in
regenerative resistor in the SERVOPACK cannot consume all of the regenerative power.
Use Yaskawa’s SigmaJu, an AC Servo drive capacity selection program, to determine if a
regenerative resistor is required.
Note: If you use an External Regenerative Resistor, you must change the setting of the Pn600 (Regenerative Resistor
Capacity) or Pn603 (Regenerative Resistance) parameters.
Selection Table
*1. Use Yaskawa's SigmaJu, an AC Servo drive capacity selection program, to select an external regenerative
resistor.
*2. Refer to the following section for the specifications of built-in regenerative resistors.
Built-In Regenerative Resistor
*3. Regenerative Resistor Units are available. Refer to the following sections for details.
SERVOPACK Model
Built-In Regener-
ative Resistor
External Regen-
erative Resistor
Contents
SGD7S-
SGD7W-
R70A, R90A,
1R6A, 2R8A
None
Basically not
required
There is no built-in regenerative resistor, but
normally an external regenerative resistor is
not required.
Install an external regenerative resistor when
the smoothing capacitor in the SERVOPACK
cannot process all the regenerative power.
*1
3R8A, 5R5A,
7R6A, 120A,
180A, 200A,
330A
1R6A, 2R8A,
5R5A, 7R6A
Standard fea-
ture
*2
Basically not
required
A built-in regenerative resistor is provided as a
standard feature. Install an external regenera-
tive resistor when the built-in regenerative
resistor cannot process all the regenerative
power.
*1
1R9D, 3R5D,
5R4D, 8R4D,
120D, 170D
2R6D, 5R4D
470A, 550A,
590A, 780A
None
Required.
*3
A built-in regenerative resistor is not provided.
An External Regenerative Resistor is required.
If the External Regenerative Resistor is not
connected to the SERVOPACK, a Regenera-
tion Alarm (A.300) will occur.
Summary of Contents for SGM7J-A5A
Page 1: ...yaskawa com SIGMA 7 AC Servo Drives and Motors Technical Supplement...
Page 18: ...18...
Page 21: ...SGMMV 4 SGM7J 18 SGM7A 54 SGM7P 116 SGM7G 134 Rotary Servo Motors...
Page 133: ...Rotary Servo Motors SGM7A 115 Rotary Servo Motors...
Page 151: ...Rotary Servo Motors SGM7P 133 Rotary Servo Motors...
Page 206: ...Rotary Servo Motors SGM7G 188...
Page 223: ...Direct Drive Servo Motors SGM7F With Core Inner Rotor 205 Direct Drive Servo Motors...
Page 251: ...Direct Drive Servo Motors SGM7D With Core Outer Rotor 233 Direct Drive Servo Motors...
Page 276: ...Direct Drive Servo Motors SGMCS Small Capacity Coreless or Medium Capacity with Core 258...
Page 409: ...Linear Servo Motors Recommended Linear Encoders and Cables 391 Cables and Peripheral Devices...
Page 435: ...ST2F Sigma Trac II Linear Stages 418 Sigma Trac II Linear Stages...
Page 495: ...SERVOPACKs 7W Two axis MECHATROLINK III Communications Reference SERVOPACKs 477 SERVOPACKs...
Page 516: ...SERVOPACKs SERVOPACK External Dimensions 498...
Page 547: ...SERVOPACK Cables 530 SERVOPACK Peripheral Devices 540 SERVOPACK Cables Peripherals...
Page 557: ...SERVOPACK Cables Peripherals SERVOPACK Cables 539 Cables and Peripheral Devices...
Page 599: ...Appendices Capacity Selection for Servo Motors 581 Appendices...
Page 615: ...Appendices Capacity Selection for Regenerative Resistors 597 Appendices...
Page 617: ...Appendices International Standards 599 Appendices...
Page 620: ......
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