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
SGDB-05VD-Y1
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, Leaky Capacitors (Open, Corroded Traces), No Display
Drive Type: SGDB AC Servo Drive
Rated Output: 0.5kW
Supply Voltage: 200V Optional CE (European Certification)
Model: Torque, Speed, Position Control
Applicable motor series: SGM
Option Specifications: None
Modification: Y1
SGDA-04ASP
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Magnetic Contactor, Relay, Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
Servo Amplifier Type: SGDA
Rated Output: 400W (0.53HP)
Supply Voltage: 200V
Model: Speed/Torque Control (Analog Input)
Factory setting of applicable motor type: SGMP Servomotor
Modification type: None
SGDB-15ADG
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Cooling Fans, Bad Magnetic Contactor, Relay, Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
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
SGDA-05AS-Y195
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Circuit Board Component(s), 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
SGDB-10ADG
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Cooling Fans, Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
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
SGDB-60ADM
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s)
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
SGDA-01AS
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s)
Servo Amplifier Type: SGDA
Rated Output: 100W (0.13HP)
Supply Voltage: 200V
Model: Speed/Torque Control (Analog Input)
Factory setting of applicable motor type: SGM Servomotor (blank)
Modification type: None
SGDB-15ADP-Y8
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: SGMP
Option Specifications: None
Modification: Y8
SGDB-15ADM
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Circuit Board Component(s), Bad Control Section/Board, Bad Cooling Fans, Bad Gate Section/Board, 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
SGDB-20ADG
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Circuit Board Component(s), Bad Control Section/Board, Bad Cooling Fans, Bad Power Section/Board, Excessive Dirt/Debris
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
SGDB-1AADG-P-Y370
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Circuit Board Component(s), Bad Cooling Fans, Bad Power Section/Board, Bad Gate Section/Board
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
SGDB-75ADG-P-Y49
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Output Transistors/SCRs
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
SGDB-20ADG-P
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Circuit Board Component(s), Bad Cooling Fans, Bad Power Section/Board, Excessive Dirt/Debris
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
SGDB-05ADG-P
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Circuit Board Component(s), Bad Control Section/Board, 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: Duct Ventilation Type
Modification: None
SGDB-05ADG
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Cooling Fans, Bad DC Bus Capacitors, Bad Magnetic Contactor, Relay, Bad Output Transistors/SCRs, Bad Power Section/Board, Leaky Capacitors (Open, Corroded Traces)
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
SGDB-44ADG
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Cooling Fans, Bad Magnetic Contactor, Relay, Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
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
SGDB-60ADG
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Control Section/Board, Bad Cooling Fans, Bad Gate Section/Board, Bad Magnetic Contactor, Relay, Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
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
SGDB-1EADG-P-Y370
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Gate Section/Board, Bad Magnetic Contactor, Relay, Bad Power Section/Board
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: Duct Ventilation Type
Modification: Y370
SGDA-01AP
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Circuit Board Component(s), Bad Power Section/Board, Excessive Dirt/Debris
Servo Amplifier Type: SGDA
Rated Output: 100W (0.13HP)
Supply Voltage: 200V
Model: Position Control (Digital Input)
Factory setting of applicable motor type: SGM Servomotor (blank)
Modification type: None
SGDA-02AP
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Circuit Board Component(s), Bad Power Section/Board, Excessive Dirt/Debris
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
SGDB-30ADG
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Circuit Board Component(s), Bad Control Section/Board, Bad Cooling Fans, Bad Power Section/Board, Excessive Dirt/Debris, May Require Board Replacement, No Display
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
SGDB-15ADG-P-Y370
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Circuit Board Component(s), Bad Cooling Fans, Bad DC Bus Capacitors, 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: Duct Ventilation Type
Modification: Y370
SGDB-1AADG
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, Physical Damage to the Drive
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: None
Modification: None
SGDB-30ADG-Y8
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Cooling Fans, Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
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