Our Team Expertly Repairs Yaskawa AC Servo Drive CACR-IR_SB series
Precision Zone specializes in Yaskawa product repairs servicing a wide range of AC Servo series such as Yaskawa SGDH Sigma 2 Series Servopack
Yaskawa AC Servo Drive SGDH Sigma 2 Series have 16 different kW sizes and they can come in 100/220V or 400V configurations.
The SGDH Servopack has several mounting options which lend it well to advanced forms of automation. The SGDH drives can use SigmaWin Plus or a digital operator 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 servopack are displayed through a seven segment display located on the front of these drives or by using a digital operator. The codes displayed are:
| Alarm Code | Code Type | Cause |
|---|---|---|
| 2, 4, 5, | Soft Alarm | Corrupted data or parameter settings |
| 3, CPF00, CPF01 | Control Board Alarm | |
| 30, 32, 40 | Braking Circuitry Alarm | Regen circuitry failure of the drive |
| 40, 41, F1 | Power Alarm | Over voltage, verify incoming power |
| 10 | Motor or Encoder Alarm | Over Current motor or cables |
| 51 | Motor or Encoder Alarm | Incorrect connections between the motor and the drive |
| 71, 72, 73, 7A | Load Alarm | Too high or too low of a load |
| 81, 82, 84, 85, 86 | Encoder Alarm | |
| 83 | Battery Alarm |
Recently Repaired Products
CACR-IR15SB
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Power Section/Board, Leaky Capacitors (Open, Corroded Traces)
Drive Type: CACR AC Servo Drive
Control Type: Current Control
Rated Output Capacity: 1.5kW
Axis Specification: 1 Axis
Application: For CNC, Analog, Through-hole Mounted
CACR-IR30SB
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Circuit Board Component(s), Bad Control Section/Board, Bad DCCT, Bad Power Section/Board
Drive Type: CACR AC Servo Drive
Control Type: Current Control
Rated Output Capacity: 3.0kW
Axis Specification: 1 Axis
Application: For CNC, Analog, Through-hole Mounted
CACR-IR10SB
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Control Section/Board, Bad Gate Section/Board, Bad Power Section/Board, Leaky Capacitors (Open, Corroded Traces), Physical Damage to the Drive
Drive Type: CACR AC Servo Drive
Control Type: Current Control
Rated Output Capacity: 1.0kW
Axis Specification: 1 Axis
Application: For CNC, Analog, Through-hole Mounted
CACR-IR44SB
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad DB transistor, Bad Power Section/Board
Drive Type: CACR AC Servo Drive
Control Type: Current Control
Rated Output Capacity: 4.4kW
Axis Specification: 1 Axis
Application: For CNC, Analog, Through-hole Mounted
CACR-IR05SB
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Circuit Board Component(s), Bad Power Section/Board, Excessive Dirt/Debris
Drive Type: CACR AC Servo Drive
Control Type: Current Control
Rated Output Capacity: 0.5kW
Axis Specification: 1 Axis
Application: For CNC, Analog, Through-hole Mounted
CACR-IR20SB
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad DCCT, Bad Output Transistors/SCRs, Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces), Physical Damage to the Drive
Drive Type: CACR AC Servo Drive
Control Type: Current Control
Rated Output Capacity: 2.0kW
Axis Specification: 1 Axis
Application: For CNC, Analog, Through-hole Mounted
CACR-IR03SB
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Input Diodes/SCRs, Bad Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
Drive Type: CACR AC Servo Drive
Control Type: Current Control
Rated Output Capacity: 0.3kW
Axis Specification: 1 Axis
Application: For CNC, Analog, Through-hole Mounted