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

Output Modules Testing

Multimeter Positive Lead Multimeter Negative Lead Diode Check
Negative Capacitor Terminal U V W Approximately 0.3-0.4 V
U V W Positive Capacitor Terminal 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-10ADG image SGDB-10ADG is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Circuit Board Component(s), Bad Cooling Fans, Bad Fuse, Bad Magnetic Contactor, Relay, Bad Power Section/Board
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-05ADG image SGDB-05ADG is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Circuit Board Component(s), May Require Board Replacement, Bad Cooling Fans, Bad Power Section/Board, Excessive Dirt/Debris
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 Capacitor(s), Bad Circuit Board Component(s), Bad Cooling Fans, Bad Fuse, Bad Magnetic Contactor, Relay, Bad Power Section/Board, 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-05ADG-P image SGDB-05ADG-P is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Gate Section/Board, Bad Magnetic Contactor, Relay, 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 Circuit Board Component(s), Bad Gate Section/Board, Bad Power Section/Board, 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 (1000 RPM)
Option Specifications: None
Modification: None

Yaskawa SGDB-44ADG image SGDB-44ADG is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Excessive Dirt/Debris, Bad Capacitor(s), Bad Circuit Board Component(s), Bad Control Section/Board, Bad Cooling Fans, Bad Magnetic Contactor, Relay, Bad Power Section/Board
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-Y195 image SGDA-08AS-Y195 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Circuit Board Component(s), Bad Magnetic Contactor, Relay, Bad Power Section/Board, Excessive Dirt/Debris
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: Y195

Yaskawa SGDB-60ADM image SGDB-60ADM is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Excessive Dirt/Debris, Passed Testing - Highly Recommend Recondition
Drive Type: SGDB AC Servo Drive
Rated Output: 6.0kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMG (1000 RPM)
Option Specifications: None
Modification: None

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, Bad DCCT
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-05AS-Y195 image SGDA-05AS-Y195 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: Y195

Yaskawa SGDA-A2CP-Y14 image SGDA-A2CP-Y14 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Circuit Board Component(s), Bad Gate Section/Board, Bad Power Section/Board
Servo Amplifier Type: SGDA
Rated Output: 20W
Supply Voltage: C
Model: Position Control (Digital Input)
Factory setting of applicable motor type: SGM Servomotor (blank)
Modification type: Y14

Yaskawa SGDB-1EADG image SGDB-1EADG is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Output Transistors/SCRs, Bad Power Section/Board, 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-20ADG-P image SGDB-20ADG-P is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Cooling Fans, Bad Magnetic Contactor, Relay
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

Yaskawa SGDB-10ADG-P image SGDB-10ADG-P is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Magnetic Contactor, Relay, Physical Damage to the Drive
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-01VS image SGDA-01VS is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Gate Section/Board
Servo Amplifier Type: SGDA
Rated Output: 100W (0.13HP)
Supply Voltage: 200V Optional CE
Model: Speed/Torque Control (Analog Input)
Factory setting of applicable motor type: SGM Servomotor (blank)
Modification type: None

Yaskawa SGDB-30ADG-Y8 image SGDB-30ADG-Y8 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Cooling Fans
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-15ADP image SGDB-15ADP is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Power Section/Board, No Display, Bad Gate Section/Board
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-50VN-Y114 image SGDB-50VN-Y114 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Control Section/Board, Bad Power Section/Board
Drive Type: SGDB AC Servo Drive
Rated Output: 5.0kW
Supply Voltage: 200V Optional CE (European Certification)
Model: Mechatrolink
Applicable motor series: SGMG
Option Specification: None
Modification: Y114

Yaskawa SGDB-10ADG-P-Y8 image SGDB-10ADG-P-Y8 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Excessive Dirt/Debris, Passed Testing - Highly Recommend Recondition
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: Y8

Yaskawa SGDB-50ADS image SGDB-50ADS is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Cooling Fans, Bad Power Section/Board, No Display
Drive Type: SGDB AC Servo Drive
Rated Output: 5.5kW
Supply Voltage: 200V
Model: Torque, Speed, Position Control
Applicable motor series: SGMS
Option Specifications: None
Modification: None

Yaskawa SGDB-15ADG-Y113 image SGDB-15ADG-Y113 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Precharge Resistor
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 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 SGDA-02AP image SGDA-02AP is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Control Section/Board, Bad Power Section/Board, May Require Board Replacement
Servo Amplifier Type: SGDA
Rated Output: 200W (0.27HP)
Supply Voltage: 200V
Model: Position Control (Digital Input)
Factory setting of applicable motor type: SGM Servomotor (blank)
Modification type: None

Yaskawa SGDB-15ADG-P image SGDB-15ADG-P is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Cooling Fans, Bad Power Section/Board, Excessive Dirt/Debris, No Display, Blown Circuit Board (Through Hole), May Require Board Replacement
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: Duct Ventilation Type
Modification: None