Our Team Expertly Repairs Yaskawa AC Servo Drive CACR-SR Series

Precision Zone specializes in Yaskawa product repairs servicing a wide range of AC Servo series such as Yaskawa CACR-SR Series Servopack.

Yaskawa AC Servo Drive CACR-SR Series has two different versions: BB is the base mounted and SB is the through hole mounted drives. (As an example, you might be looking at specific drives such as CACR-SR10BB1AF and CACR-SR10SB1AF)

All electrical components for both drives are identical, but mechanical design of them is completely different. The base mounted BB design has the drive directly mounted to the back panel. While the SB version has an opening in the back panel for mounting.

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-SR 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 servopack are displayed through a small seven segment LED display located on the control board. The 11 codes displayed are:

Alarm Code Code Type Cause
LED 1 OVER CURRENT Motor or cables with low insulation to ground
LED 2 CIRCUIT PROTECTOR TRIPPED Bad MCCB trips or faulty main circuit Thyristor-diode module
LED 3 REGENERATIVE TROUBLE Defective regenerative transistor
LED 4 OVER VOLTAGE Faulty regenerative circuitry or set too high
LED 5 OVER SPEED Connection error
LED 6 VOLTAGE DROP Defective main circuit or an issue with incoming voltage
LED 7 OVERLOAD Rated load is more than 105% to 130%
LED A HEAT SINK OVERHEAT Fan stopped or motor circuit connection error
LED B A/D ERROR OR CPU ERROR Bad control circuit board or defective internal elements
LED F OPEN PHASE Poor connection to 3-phase input power supply
LED C OVERRUN PREVENTION Motor or optical encoder connection error





Recently Repaired Products

Yaskawa CACR-SR20BB1BF-H image CACR-SR20BB1BF-H is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Control Section/Board, Bad Power Section/Board
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Rated Output Capacity: 2.0kW
Mount Type: Base Mounted
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 5000 pulses/rev
Applicable Motor Series: F Series
Modification: Hurco

Yaskawa CACR-SR20BB1BF image CACR-SR20BB1BF is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Control Section/Board, Bad Cooling Fans, Excessive Dirt/Debris
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Rated Output Capacity: 2.0kW
Mount Type: Base Mounted
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 5000 pulses/rev
Applicable Motor Series: F Series
Modification: None

Yaskawa CACR-SR30SB1AS-Y124 image CACR-SR30SB1AS-Y124 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Gate Section/Board, Bad Output Transistors/SCRs
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Max Motor Capacity: 3.0kW
Mount Type: Through-hole mounting
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 6000 pulses/rev
Applicable Motor Series: S Series
Modification Code: -Y124

Yaskawa CACR-SR15BB1BF-Y288 image CACR-SR15BB1BF-Y288 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Circuit Board Component(s), Leaky Capacitors (Open, Corroded Traces)
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Rated Output Capacity: 1.5kW
Mount Type: Base Mounted
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 5000 pulses/rev
Applicable Motor Series: F Series
Modification: Y288

Yaskawa CACR-SR20SB1BF-Y100 image CACR-SR20SB1BF-Y100 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Circuit Board Component(s), Bad Control Section/Board, Bad Input Circuit Breaker, Bad Output Transistors/SCRs, Bad Power Section/Board
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Max Motor Capacity: 2.0kW
Mount Type: Through-hole mounting
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 5000 pulses/rev
Applicable Motor Series: F Series
Modification Code: Y100

Yaskawa CACR-SR20BB1AM image CACR-SR20BB1AM is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Physical Damage to the Circuit Board/s, Bad Gate Section/Board, Bad Output Transistors/SCRs
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Rated Output Capacity: 2.0kW
Mount Type: Base Mounted
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 6000 pulses/rev
Applicable Motor Series: M Series
Modification: None

Yaskawa CACR-SR03SB1BF-Y199 image CACR-SR03SB1BF-Y199 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Circuit Board Component(s), Bad Control Section/Board, Physical Damage to the Circuit Board/s
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Max Motor Capacity: 0.3kW
Mount Type: Through-hole mounting
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 5000 pulses/rev
Applicable Motor Series: F Series
Modification Code: Y199

Yaskawa CACR-SR30SB1BS-Y124 image CACR-SR30SB1BS-Y124 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: Speed Control
Max Motor Capacity: 3.0kW
Mount Type: Through-hole mounting
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 5000 pulses/rev
Applicable Motor Series: S Series
Modification Code: -Y124

Yaskawa CACR-SR30SB1BF-Y168 image CACR-SR30SB1BF-Y168 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Circuit Board Component(s), Bad DCCT
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Max Motor Capacity: 3.0kW
Mount Type: Through-hole mounting
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 5000 pulses/rev
Applicable Motor Series: F Series
Modification Code: Y168

Yaskawa CACR-SR15BB1BF image CACR-SR15BB1BF is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Circuit Board Component(s), Bad Power Section/Board, May Require Board Replacement
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Rated Output Capacity: 1.5kW
Mount Type: Base Mounted
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 5000 pulses/rev
Applicable Motor Series: F Series
Modification: None

Yaskawa CACR-SR20SB1AF-Y118 image CACR-SR20SB1AF-Y118 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, Excessive Dirt/Debris
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Max Motor Capacity: 2.0kW
Mount Type: Through-hole mounting
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 6000 pulses/rev
Applicable Motor Series: F Series
Modification Code: Y118

Yaskawa CACR-SR10SB1BF-Y100 image CACR-SR10SB1BF-Y100 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: Speed Control
Max Motor Capacity: 1.0kW
Mount Type: Through-hole mounting
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 5000 pulses/rev
Applicable Motor Series: F Series
Modification Code: Y100

Yaskawa CACR-SR10SB1AF image CACR-SR10SB1AF is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Circuit Board Component(s), Bad Control Section/Board, Bad Gate Section/Board, Bad Input Circuit Breaker, Bad Input Diodes/SCRs, Bad Power Section/Board
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Max Motor Capacity: 1.0kW
Mount Type: Through-hole mounting
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 6000 pulses/rev
Applicable Motor Series: F Series
Modification Code: None

Yaskawa CACR-SR05SB1BF-Y187 image CACR-SR05SB1BF-Y187 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Gate Section/Board, Bad Output Transistors/SCRs
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Max Motor Capacity: 0.5kW
Mount Type: Through-hole mounting
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 5000 pulses/rev
Applicable Motor Series: F Series
Modification Code: Y187

Yaskawa CACR-SR15SB1AF image CACR-SR15SB1AF is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Excessive Dirt/Debris, Passed Testing - Highly Recommend Recondition
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Max Motor Capacity: 1.5kW
Mount Type: Through-hole mounting
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 6000 pulses/rev
Applicable Motor Series: F Series
Modification Code: None

Yaskawa CACR-SR10BB1CS-Y37 image CACR-SR10BB1CS-Y37 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Circuit Board Component(s), Bad Control Section/Board, Bad DC Bus Capacitors, Bad Power Section/Board, Bad Regen Section, Excessive Dirt/Debris
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Rated Output Capacity: 1.0kW
Mount Type: Base Mounted
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 2500 pulses/rev
Applicable Motor Series: S Series
Modification: Y37

Yaskawa CACR-SR10SB1AF-Y100 image CACR-SR10SB1AF-Y100 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: Speed Control
Max Motor Capacity: 1.0kW
Mount Type: Through-hole mounting
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 6000 pulses/rev
Applicable Motor Series: F Series
Modification Code: Y100

Yaskawa CACR-SR10SB1BF image CACR-SR10SB1BF is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Control Section/Board, Bad Gate Section/Board, Bad Output Transistors/SCRs, Bad Regen Section, Blown Circuit Board (Through Hole), Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces), May Require Board Replacement
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Max Motor Capacity: 1.0kW
Mount Type: Through-hole mounting
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 5000 pulses/rev
Applicable Motor Series: F Series
Modification Code: None

Yaskawa CACR-SR10BB1BF image CACR-SR10BB1BF is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Circuit Board Component(s), Bad Control Section/Board, Bad Power Section/Board, Excessive Dirt/Debris
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Rated Output Capacity: 1.0kW
Mount Type: Base Mounted
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 5000 pulses/rev
Applicable Motor Series: F Series
Modification: None

Yaskawa CACR-SR10BB1AF image CACR-SR10BB1AF is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Bad Control Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Rated Output Capacity: 1.0kW
Mount Type: Base Mounted
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 6000 pulses/rev
Applicable Motor Series: F Series
Modification: None

Yaskawa CACR-SR44BB1AM image CACR-SR44BB1AM is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Capacitor(s), Excessive Dirt/Debris, Passed Testing - Highly Recommend Recondition
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Rated Output Capacity: 4.4kW
Mount Type: Base Mounted
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 6000 pulses/rev
Applicable Motor Series: M Series
Modification: None

Yaskawa CACR-SR10BB1CS image CACR-SR10BB1CS is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Control Section/Board, May Require Board Replacement
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Rated Output Capacity: 1.0kW
Mount Type: Base Mounted
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 2500 pulses/rev
Applicable Motor Series: S Series
Modification: None

Yaskawa CACR-SR05SB1AF-Y187 image CACR-SR05SB1AF-Y187 is an
Drives-AC Servo manufactured by Yaskawa
Discovered issues: Bad Control Section/Board, Bad Power Section/Board, Bad Capacitor(s)
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Max Motor Capacity: 0.5kW
Mount Type: Through-hole mounting
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 6000 pulses/rev
Applicable Motor Series: F Series
Modification Code: Y187

Yaskawa CACR-SR30SB1BS-Y119 image CACR-SR30SB1BS-Y119 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, Excessive Dirt/Debris
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Max Motor Capacity: 3.0kW
Mount Type: Through-hole mounting
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 5000 pulses/rev
Applicable Motor Series: S Series
Modification Code: -Y119