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 CACR-IR_SB Series Servopack.

Yaskawa AC Servo Drive CACR-IR_SB has been developed as basic mechatronics drive for the most advanced Factory Automation and Factory Machining Systems, including robots and machine tools.

For your mechatronics systems, the flexible CACR-IR_SB Series Servopack achieves stable control operation with high accuracy, quick response control under any environmental condition, and smooth, powerful operation even at low-speed range.

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 CACR-IR_SB 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 0L 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

There is no seven segment display on this drive. All alarms are displayed through the control. All of the alarms that are seen through the control are the same as the CACR-IR _SB/SF series drives. These alarms are listed below.:

There are regular alarms and hardware Alarms. In all cases the servo ready LED will turn off. For Hardware alarms, on both types of drive it will flash an H, followed by a period, then finally the alarm number. The alarms are displayed through a seven segment display on the inside side of the drive.

Alarm Code Code Type Cause
H.1 Hardware or Corrupted Data Alarm CPU ROM
H.2 Hardware or Corrupted Data Alarm CPU RAM
H.3 Hardware or Corrupted Data Alarm Serial Communication
H.5, 6, 7 Hardware or Corrupted Data Alarm Abnormal Gate Alley
H.8 Hardware or Corrupted Data Alarm EEPROM Error
H.9 Hardware or Corrupted Data Alarm Abnormal 4-bit micro computer
H.A, C, E Hardware or Corrupted Data Alarm Current feedback problem U phase
H.B, D, F Hardware or Corrupted Data Alarm Current feedback problem V phase
A.3 Braking Circuitry Alarms Regen circuit failure
A.4 Overvoltage Alarm Regen circuit failure
A.4 Power Alarm Overvoltage
A.6 Power Alarm Undervoltage
A.8 Power Alarm Ground Fault
A.F Power Alarm Open Phase
A.1 Overcurrent Alarm Low insulation to ground
A.2 MCCB Trip Alarm A short in the drive




Recently Repaired Products

Yaskawa CACR-IR20SB image CACR-IR20SB is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Power Section/Board
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

Yaskawa CACR-IR30SB image CACR-IR30SB is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), 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

Yaskawa CACR-IR15SB image CACR-IR15SB is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Input Diodes/SCRs, Bad Power Section/Board, Excessive Dirt/Debris
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

Yaskawa CACR-IR10SB image CACR-IR10SB is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Circuit Board Component(s), Bad Control Section/Board, Bad Output Transistors/SCRs, Bad Power Section/Board
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

Yaskawa CACR-IR44SB image CACR-IR44SB is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), 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: 4.4kW
Axis Specification: 1 Axis
Application: For CNC, Analog, Through-hole Mounted