Our Team Expertly Repairs Yaskawa AC Servo Drives SGD, SGDA, and SGDB Sigma 1 Series

Precision Zone specializes in Yaskawa product repairs servicing a wide range of AC Servo series such as Yaskawa SGD, SGDA, and SGDB Sigma 1 Series Servopack.

Yaskawa AC Servo Drives SGD and SGDA are primarily for 1 kW or under applications. The SGDB drives are for applications ranging from 0.2kW to 55kW.

The SGD, SGDA, and SGDB Sigma 1 Series drives can use SigmaWin Plus or a digital operator that can be plugged into the front of these drives to change parameters, check alarms, or monitor the dive while in operation.

When assessing the functionality of a drive, our engineering team typically conducts a four-step check:

  • Visual Overview Check
  • Static Test
  • Checks Under Power
  • 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 SGDH SIGMA 2 SERIES SERVOPACKS

Visual Overview Check

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 Modules Testing

Multimeter Positive Lead Negative Capacitor Terminal
Multimeter Negative Lead R S T
Diode Check Approximately 0.3-0.4 V
Multimeter Positive Lead R S T
Multimeter Negative Lead Positive Capacitor Terminal
Diode Check 0 L Displayed

Output Modules Testing

Multimeter Positive Lead Negative Capacitor Terminal
Multimeter Negative Lead U V W
Diode Check Approximately 0.3-0.4 V
Multimeter Positive Lead U V W
Multimeter Negative Lead Positive Capacitor Terminal
Diode Check Approximately 0.3-0.4 V

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. The technicians measure the resistance between Y3 and Y4. Resistance output results will vary depending on the size of the drive, but should not be shorted.

Alarm Codes Troubleshooting

The alarms on the SGD, SGDA, and SGDB Sigma 1 Series servopack are displayed through a seven segment display located on the front of these drives or by using a digital operator. These codes displayed are :

Alarm Code Code Type Cause
A.02 and A.04 Soft Alarm Incorrect parameters or corrupted datae
CPF00, CPF01 Control Circuit Alarm Control circuit drive problem
A30, A40 Braking Circuitry Alarm Regen circuitry failure of the drive
A.40, A,F1, A.F3 Power Alarm Incoming voltage problem
10 Motor or Encoder Alarm Overcurrent or Heat Sink Overheated
51 Motor or Encoder Alarm Overspeed; Incorrect connections or parameters
71, 72, A.A1 Load Alarm Too high or too low of a load
80, 81, 82, 83, 84 Encoder Alarm Either encoder data, backup or checksum error
A.C9, A.CA, A.00 Encoder Alarm Encoder communication, parameter, or data error






Recently Repaired Products

Yaskawa SGDB-20ADG image SGDB-20ADG is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Parameter/Setting Adjustment
Drive Type: SGDB AC Servo Drive
Rated Output: 2.0kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1500 RPM)
Option Specifications: None
Modification: None

Yaskawa SGDB-30ADG-Y8 image SGDB-30ADG-Y8 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Excessive Dirt/Debris, Bad Circuit Board Component(s), Bad Power Section/Board
Drive Type: SGDB AC Servo Drive
Rated Output: 3.0kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1500 RPM)
Option Specifications: None
Modification: Y8

Yaskawa SGDB-10ADG image SGDB-10ADG is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Gate Section/Board, Bad Capacitor(s), Bad Power Section/Board, Bad Cooling Fans, Excessive Dirt/Debris
Drive Type: SGDB AC Servo Drive
Rated Output: 1.0kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1500 RPM)
Option Specifications: None
Modification: None

Yaskawa SGDB-15ADP image SGDB-15ADP is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad DC Bus Capacitors, Bad Regen Section
Drive Type: SGDB AC Servo Drive
Rated Output: 1.5kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMP
Option Specifications: None
Modification: None

Yaskawa SGDB-05ADG image SGDB-05ADG is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Cooling Fans, Bad Power Section/Board, Blown Circuit Board (Through Hole), Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces), May Require Board Replacement
Drive Type: SGDB AC Servo Drive
Rated Output: 0.5kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1500 RPM)
Option Specifications: None
Modification: None

Yaskawa SGDB-30ADG image SGDB-30ADG is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Cooling Fans, Bad DC Bus Capacitors, Excessive Dirt/Debris
Drive Type: SGDB AC Servo Drive
Rated Output: 3.0kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1500 RPM)
Option Specifications: None
Modification: None

Yaskawa SGDB-44ADG image SGDB-44ADG is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Parameter/Setting Adjustment, Bad Cooling Fans
Drive Type: SGDB AC Servo Drive
Rated Output: 4.4kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1500 RPM)
Option Specifications: None
Modification: None

Yaskawa SGDA-08AS image SGDA-08AS is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Power Section/Board
Servo Amplifier Type: SGDA
Rated Output: 750W (1.01HP)
Supply Voltage: 200V
Model: Speed/Torque Control (Analog Input)
Factory setting of applicable motor type: SGM Servomotor (blank)
Modification type: None

Yaskawa SGDB-05ADG-P image SGDB-05ADG-P is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Power Section/Board
Drive Type: SGDB AC Servo Drive
Rated Output: 0.5kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1500 RPM)
Option Specifications: Duct Ventilation Type
Modification: None

Yaskawa SGDB-30ADM image SGDB-30ADM is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Gate Section/Board
Drive Type: SGDB AC Servo Drive
Rated Output: 3.0kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1000 RPM)
Option Specifications: None
Modification: None

Yaskawa SGDB-60ADG image SGDB-60ADG is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Cooling Fans, Excessive Dirt/Debris, Bad Power Section/Board
Drive Type: SGDB AC Servo Drive
Rated Output: 6.0kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1500 RPM)
Option Specifications: None
Modification: None

Yaskawa SGDB-15ADG image SGDB-15ADG is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Cooling Fans, Bad Output Transistors/SCRs, Bad Power Section/Board, Excessive Dirt/Debris
Drive Type: SGDB AC Servo Drive
Rated Output: 1.5kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1500 RPM)
Option Specifications: None
Modification: None

Yaskawa SGDB-1AADG-P-Y370 image SGDB-1AADG-P-Y370 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Cooling Fans, Bad Output Transistors/SCRs, Bad Power Section/Board, Excessive Dirt/Debris
Drive Type: SGDB AC Servo Drive
Rated Output: 11.0kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1500 RPM)
Option Specifications: Duct Ventilation Type
Modification: Y370

Yaskawa SGDB-15ADG-Y113 image SGDB-15ADG-Y113 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Control Section/Board
Drive Type: SGDB AC Servo Drive
Rated Output: 1.5kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1500 RPM)
Option Specifications: None
Modification: Y113

Yaskawa SGDB-10ADG-P image SGDB-10ADG-P is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Magnetic Contactor, Relay, Bad Cooling Fans, Bad DC Bus Capacitors, Bad DB transistor, Excessive Dirt/Debris
Drive Type: SGDB AC Servo Drive
Rated Output: 1.0kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1500 RPM)
Option Specifications: Duct Ventilation Type
Modification: None

Yaskawa SGDA-01ASP image SGDA-01ASP is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Control Section/Board, May Require Board Replacement
Servo Amplifier Type: SGDA
Rated Output: 100W (0.13HP)
Supply Voltage: 200V
Model: Speed/Torque Control (Analog Input)
Factory setting of applicable motor type: SGMP Servomotor
Modification type: None

Yaskawa SGDB-75ADG-P-Y49 image SGDB-75ADG-P-Y49 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Cooling Fans, Excessive Dirt/Debris
Drive Type: SGDB AC Servo Drive
Rated Output: 7.5kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1500 RPM)
Option Specifications: Duct Ventilation Type
Modification: Y49

Yaskawa SGDA-02AS image SGDA-02AS is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Control Section/Board, Board Replacement Required
Servo Amplifier Type: SGDA
Rated Output: 200W (0.27HP)
Supply Voltage: 200V
Model: Speed/Torque Control (Analog Input)
Factory setting of applicable motor type: SGM Servomotor (blank)
Modification type: None

Yaskawa SGDB-44ADG-Y8 image SGDB-44ADG-Y8 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Cooling Fans, Excessive Dirt/Debris, Passed Testing - Highly Recommend Recondition
Drive Type: SGDB AC Servo Drive
Rated Output: 4.4kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1500 RPM)
Option Specifications: None
Modification: Y8

Yaskawa SGDB-15ADM image SGDB-15ADM is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Power Section/Board, Excessive Dirt/Debris
Drive Type: SGDB AC Servo Drive
Rated Output: 1.5kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1000 RPM)
Option Specifications: None
Modification: None

Yaskawa SGDA-02BS image SGDA-02BS is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Excessive Dirt/Debris, Bad Control Section/Board
Servo Amplifier Type: SGDA
Rated Output: 200W (0.27HP)
Supply Voltage: 100V
Model: Speed/Torque Control (Analog Input)
Factory setting of applicable motor type: SGM Servomotor (blank)
Modification type: None

Yaskawa SGDB-1EADG image SGDB-1EADG is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Gate Section/Board, Bad Output Transistors/SCRs, Excessive Dirt/Debris
Drive Type: SGDB AC Servo Drive
Rated Output: 15.0kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1500 RPM)
Option Specifications: None
Modification: None

Yaskawa SGDB-10AM image SGDB-10AM is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Parameter/Setting Adjustment
Drive Type: SGDB AC Servo Drive
Rated Output: 1.0kW
Supply Voltage: 200V
Model: With multiple position control functions
Applicable Motor Series: SGMG/SGM
Option Specifications: None
Modification: None

Yaskawa SGDB-20ADG-P image SGDB-20ADG-P is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Power Section/Board, Bad Capacitor(s), Bad Cooling Fans, Excessive Dirt/Debris, No Display
Drive Type: SGDB AC Servo Drive
Rated Output: 2.0kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1500 RPM)
Option Specifications: Duct Ventilation Type
Modification: None