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Our Team Expertly Repairs Yaskawa AC Servo Drive SGDV Sigma V series

Precision Zone specializes in Yaskawa product repairs servicing a wide range of AC Servo series such as Yaskawa SGDV Series Servopack.

Yaskawa AC Servo Drive SGDV has been developed for the most advanced Factory Automation and Factory Machining Systems, including robots and machine tools. Sigma one, two and three are all able to be upgraded to the Sigma five platforms. Controllable with a digital operator or SigmaWin Plus.

When assessing the functionality of a drive, our repair team conducts a four-step evaluation:

  • 1. Visual Overview
  • 2. Static Test
  • 3. Checks Under Power
  • 4. Alarm Codes Verification

This overview is Precision Zone’s basic troubleshooting process. Once our repair team starts on the job we use specialized, customized test fixtures, Huntron tracker, signal generator, oscilloscope, milli and mega ohm meters and other necessary tools to assure quality repair. Most importantly, every repair is fully tested in custom-built simulators under load to replicate real-life working environment.

Precision Zone goes as far as using heat chamber and overnight dynamic testing to guarantee performance of the repaired product when it comes back to the customer.

Repair Process for SGVD Series Servopacks

Visual Overview

When conducting a visual check, the technician inspects the drive for any mechanical damage to the drive and print circuit boards. Then the team proceeds to verify connections are tight and correct inside the drive and there are no loose screws, wires or particles. Additionally, we look for any burn marks anywhere on the components or chassis. During the visual inspection technical team notes excessive dirt on cooling components and records clogged heatsink.

Static Test Basic

Precision Zone repair technicians use digital multimeter with diode testing capabilities and resistance measurement to conduct a static test. In the instance of Diode testing, our team is looking to check input and output modules.

Input Module Testing

Positive Lead Negative Lead Reading
L1 Positive Bus Terminal ~ 0.48V
L2 Positive Bus Terminal ~ 0.48V
L3 Positive Bus Terminal ~ 0.48V
Negative Bus Terminal L1 0.48V
Negative Bus Terminal L2 0.48V
Negative Bus Terminal L3 0.48V

Output Module Testing

Positive Lead Negative Lead Reading
U Positive Bus Terminal ~ 0.43V
V Positive Bus Terminal ~ 0.43V
W Positive Bus Terminal ~ 0.43V
Negative Bus Terminal U 0.44V
Negative Bus Terminal V 0.44V
Negative Bus Terminal W 0.44V

We verify capacitor value using capacitor meter and examine functionality of circuit breakers and contactors in the drive.

The last step in a static test process is checking the Regen Resistor. Resistance output results will vary depending on the size of the drive, but should not be shorted.

Alarm Codes Troubleshooting

Common alarms for the Yaskawa SGDV Sigma V Series

Alarm Code Description Cause
020, 021, 022, 040, 041, 042, 044, 04A, 080 Parameter Error Alarm
050, 051 Combination or Incorrect Device Alarm
030, 450, CPF00, 01 Drive Error Alarms
100 Motor Alarm Overcurrent
510, 511, 520 Motor Alarm Overspeed
710, 720, 730, 731 Motor Alarm Overload and Overheat
740, 7A0 Heatsink, 7AB fan Dynamic Break Overload Alarm
800s and Cs Encoder Alarm
400, 410, 330 Power Alarm

Precision Zone Repair Benefits for Yaskawa AC Servo Drives

  • 1. FREE evaluation by expert technician includes:
  • Visual Inspection
  • Static Check
  • Power Tests
  • 2. FREE job estimate
  • 3. 12 month warranty on our parts and labor
  • 4. Flat Price
  • 5. Exchange Option
  • 6. Rush Service

Contact Us To Start Your Repair Today!






Recently Repaired Products

Yaskawa SGDV-7R6A01A image SGDV-7R6A01A is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Precharge Resistor
Servo Amplifier Type: SGDV Sigma V
Current: 1.0kW
Voltage: 200VAC; 3 Phase
Interface: Analog voltage/pulse train reference type for rotary servomotors
Design Revision Order: A
Options: Base-mounted (Standard) (blank)

Yaskawa SGDV-170D21A image SGDV-170D21A is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Cooling Fans, Bad Power Section/Board, Bad Precharge Resistor, Excessive Dirt/Debris
Servo Amplifier Type: SGDV Sigma V
Current: 5.0kW
Voltage: 400VAC; 3 Phase
Interface: MECHATROLINK-III communications reference, rotational servomotor
Design Revision Order: A
Options: Base-mounted (Standard) (blank)

Yaskawa SGDV-2R8A01A002000 image SGDV-2R8A01A002000 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Cooling Fans, Bad Power Section/Board, Bad Regen Section, May Require Board Replacement
Servo Amplifier Type: SGDV Sigma V
Current: 0.4kW
Voltage: 200VAC; 3 Phase
Interface: Analog voltage/pulse train reference type for rotary servomotors
Design Revision Order: A
Options: Varnished

Yaskawa SGDV-7R6A01A002000 image SGDV-7R6A01A002000 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Power Section/Board, Bad Precharge Resistor, Excessive Dirt/Debris
Servo Amplifier Type: SGDV Sigma V
Current: 1.0kW
Voltage: 200VAC; 3 Phase
Interface: Analog voltage/pulse train reference type for rotary servomotors
Design Revision Order: A
Options: Varnished

Yaskawa SGDV-330A01A image SGDV-330A01A is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Power Section/Board, Excessive Dirt/Debris
Servo Amplifier Type: SGDV Sigma V
Current: 5.0kW
Voltage: 200VAC; 3 Phase
Interface: Analog voltage/pulse train reference type for rotary servomotors
Design Revision Order: A
Options: Base-mounted (Standard) (blank)

Yaskawa SGDV-1R9D11A image SGDV-1R9D11A is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Passed Testing - Highly Recommend Recondition
Servo Amplifier Type: SGDV Sigma V
Current: 0.5kW
Voltage: 400VAC; 3 Phase
Interface: MECHATROLINK-II communications reference, rotational servomotor
Design Revision Order: A
Options: Base-mounted (Standard) (blank)

Yaskawa SGDV-170D01A002000 image SGDV-170D01A002000 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Power Section/Board, No Display, May Require Board Replacement
Servo Amplifier Type: SGDV Sigma V
Current: 5.0kW
Voltage: 400VAC; 3 Phase
Interface: Analog voltage/pulse train reference type for rotary servomotors
Design Revision Order: A
Options: Varnished

Yaskawa SGDV-8R4D11A002000 image SGDV-8R4D11A002000 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad DCCT, Bad Fuse, Bad Power Section/Board, Bad Regen Resistor/s, Excessive Dirt/Debris
Servo Amplifier Type: SGDV Sigma V
Current: 2.0kW
Voltage: 400VAC; 3 Phase
Interface: MECHATROLINK-II communications reference, rotational servomotor
Design Revision Order: A
Options: Varnished

Yaskawa SGDV-120D11A002000 image SGDV-120D11A002000 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Power Section/Board, Bad Precharge Resistor
Servo Amplifier Type: SGDV Sigma V
Current: 1.5kW / 3.0kW (400V)
Voltage: 400VAC; 3 Phase
Interface: MECHATROLINK-II communications reference, rotational servomotor
Design Revision Order: A
Options: Varnished

Yaskawa SGDV-120D11A image SGDV-120D11A is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Precharge Resistor, Bad Circuit Board Component(s), Bad Power Section/Board, Bad Precharge Resistor, Blown Input Power Components
Servo Amplifier Type: SGDV Sigma V
Current: 1.5kW / 3.0kW (400V)
Voltage: 400VAC; 3 Phase
Interface: MECHATROLINK-II communications reference, rotational servomotor
Design Revision Order: A
Options: Base-mounted (Standard) (blank)

Yaskawa SGDV-120D01A002000 image SGDV-120D01A002000 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad DCCT, Bad Fuse, Bad Power Section/Board
Servo Amplifier Type: SGDV Sigma V
Current: 1.5kW / 3.0kW (400V)
Voltage: 400VAC; 3 Phase
Interface: Analog voltage/pulse train reference type for rotary servomotors
Design Revision Order: A
Options: Varnished

Yaskawa SGDV-170D01A image SGDV-170D01A is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Cooling Fans, Bad DCCT, Bad Fuse, Bad Power Section/Board, Excessive Dirt/Debris, No Display
Servo Amplifier Type: SGDV Sigma V
Current: 5.0kW
Voltage: 400VAC; 3 Phase
Interface: Analog voltage/pulse train reference type for rotary servomotors
Design Revision Order: A
Options: Base-mounted (Standard) (blank)

Yaskawa SGDV-120A01A image SGDV-120A01A is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Control Section/Board, Bad Power Section/Board, Excessive Dirt/Debris
Servo Amplifier Type: SGDV Sigma V
Current: 1.5kW / 3.0kW (400V)
Voltage: 200VAC; 3 Phase
Interface: Analog voltage/pulse train reference type for rotary servomotors
Design Revision Order: A
Options: Base-mounted (Standard) (blank)

Yaskawa SGDV-330A01A002000 image SGDV-330A01A002000 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Magnetic Contactor, Relay, Bad Power Section/Board, Bad Precharge Resistor
Servo Amplifier Type: SGDV Sigma V
Current: 5.0kW
Voltage: 200VAC; 3 Phase
Interface: Analog voltage/pulse train reference type for rotary servomotors
Design Revision Order: A
Options: Varnished

Yaskawa SGDV-180A01A image SGDV-180A01A is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Cooling Fans, Bad Power Section/Board, Excessive Dirt/Debris
Servo Amplifier Type: SGDV Sigma V
Current: 2.0kW
Voltage: 200VAC; 3 Phase
Interface: Analog voltage/pulse train reference type for rotary servomotors
Design Revision Order: A
Options: Base-mounted (Standard) (blank)

Yaskawa SGDV-1R6A01A002000 image SGDV-1R6A01A002000 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Cooling Fans, Bad Power Section/Board
Servo Amplifier Type: SGDV Sigma V
Current: 0.2kW
Voltage: 200VAC; 3 Phase
Interface: Analog voltage/pulse train reference type for rotary servomotors
Design Revision Order: A
Options: Varnished

Yaskawa SGDV-330A21A002000 image SGDV-330A21A002000 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Excessive Dirt/Debris
Servo Amplifier Type: SGDV Sigma V
Current: 5.0kW
Voltage: 200VAC; 3 Phase
Interface: MECHATROLINK-III communications reference, rotational servomotor
Design Revision Order: A
Options: Varnished

Yaskawa SGDV-2R8A01A image SGDV-2R8A01A is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Cooling Fans, Bad DCCT, Bad Load Sharing Resistor, Bad Output Transistors/SCRs, Bad Power Section/Board
Servo Amplifier Type: SGDV Sigma V
Current: 0.4kW
Voltage: 200VAC; 3 Phase
Interface: Analog voltage/pulse train reference type for rotary servomotors
Design Revision Order: A
Options: Base-mounted (Standard) (blank)

Yaskawa SGDV-1R6A11A image SGDV-1R6A11A is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Cooling Fans
Servo Amplifier Type: SGDV Sigma V
Current: 0.2kW
Voltage: 200VAC; 3 Phase
Interface: MECHATROLINK-II communications reference, rotational servomotor
Design Revision Order: A
Options: Base-mounted (Standard) (blank)

Yaskawa SGDV-1R9D11A002000 image SGDV-1R9D11A002000 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad DB resistor, Bad Power Section/Board, Bad Precharge Resistor
Servo Amplifier Type: SGDV Sigma V
Current: 0.5kW
Voltage: 400VAC; 3 Phase
Interface: MECHATROLINK-II communications reference, rotational servomotor
Design Revision Order: A
Options: Varnished

Yaskawa SGDV-3R5D11A image SGDV-3R5D11A is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Magnetic Contactor, Relay, Bad Power Section/Board, Excessive Dirt/Debris
Servo Amplifier Type: SGDV Sigma V
Current: 1.0kW
Voltage: 400VAC; 3 Phase
Interface: MECHATROLINK-II communications reference, rotational servomotor
Design Revision Order: A
Options: Base-mounted (Standard) (blank)

Yaskawa SGDV-120A01A002000 image SGDV-120A01A002000 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Control Section/Board, Bad Power Section/Board, Excessive Dirt/Debris, May Require Board Replacement, No Display, Physical Damage to the Circuit Board/s, Physical Damage to the Drive
Servo Amplifier Type: SGDV Sigma V
Current: 1.5kW / 3.0kW (400V)
Voltage: 200VAC; 3 Phase
Interface: Analog voltage/pulse train reference type for rotary servomotors
Design Revision Order: A
Options: Varnished

Yaskawa SGDV-5R5A01A image SGDV-5R5A01A is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Magnetic Contactor, Relay, Bad Power Section/Board, Bad Precharge Resistor
Servo Amplifier Type: SGDV Sigma V
Current: 0.75kW
Voltage: 200VAC; 3 Phase
Interface: Analog voltage/pulse train reference type for rotary servomotors
Design Revision Order: A
Options: Base-mounted (Standard) (blank)

Yaskawa SGDV-170D21A002000 image SGDV-170D21A002000 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Magnetic Contactor, Relay, Bad Precharge Resistor
Servo Amplifier Type: SGDV Sigma V
Current: 5.0kW
Voltage: 400VAC; 3 Phase
Interface: MECHATROLINK-III communications reference, rotational servomotor
Design Revision Order: A
Options: Varnished