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 | 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 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
CACR-SR05SB1AF-Y187
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
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
CACR-SR20SB1BF-Y100
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad DCCT, Bad Gate Section/Board, 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: 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
CACR-SR20SB1BF-Y45
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 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: 5000 pulses/rev
Applicable Motor Series: F Series
Modification Code: Y45
CACR-SR15SB1AF-Y100
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Power Section/Board, Bad Regen Section, Excessive Dirt/Debris, Missing parts/components, Multiple signs of previous repair, Bad Capacitor(s), Bad Circuit Board Component(s), Bad Control Section/Board, Bad Gate Section/Board, Bad Input Circuit Breaker
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: Y100
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 DCCT, 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: -Y124
CACR-SR07BB1AM
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 Output Transistors/SCRs, Bad Power Section/Board, Excessive Dirt/Debris
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Rated Output Capacity: 0.7kW
Mount Type: Base Mounted
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 6000 pulses/rev
Applicable Motor Series: M Series
Modification: None
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 Power Section/Board, Board Replacement Required, 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: None
CACR-SR30BB1AM
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad DC Reactor
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Rated Output Capacity: 3.0kW
Mount Type: Base Mounted
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 6000 pulses/rev
Applicable Motor Series: M Series
Modification: None
CACR-SR10SB1AF-Y100
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 Gate 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: 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
CACR-SR30SB1AS-Y124
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad DCCT, 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: 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
CACR-SR10BB1BF-H
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Output Transistors/SCRs, 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: 5000 pulses/rev
Applicable Motor Series: F Series
Modification: Hurco
CACR-SR10BB1BF
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Control Section/Board
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
CACR-SR20SB1AF-Y100
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Control Section/Board, Bad DCCT, Bad Output Transistors/SCRs, Bad Power Section/Board, Blown Input Power Components, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
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: Y100
CACR-SR10SB1BF
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 Output Transistors/SCRs, Bad Power Section/Board, Excessive Dirt/Debris
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
CACR-SR10BB1AF
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Control Section/Board, Bad Output Transistors/SCRs, Leaky Capacitors (Open, Corroded Traces), Physical Damage to the Drive
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
CACR-SR20SB1AF
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Gate Section/Board, Bad Output Transistors/SCRs, 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: 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: None
CACR-SR03SB1AF-Y187
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
Max Motor Capacity: 0.3kW
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
CACR-SR44SB1AF-Y307
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Max Motor Capacity: 4.4kW
Mount Type: Through-hole mounting
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 6000 pulses/rev
Applicable Motor Series: F Series
Modification Code: Y307
CACR-SR15SB1AF
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: 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
CACR-SR30SB1BF-Y45
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 Power Section/Board, Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
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: Y45
CACR-SR15BB1BF
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
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
CACR-SR30SB1BF
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Excessive Dirt/Debris, Leaky Capacitors (Open, Corroded Traces)
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: None
CACR-SR20SB1AF-Y118
is an
Drives-AC Servo
manufactured by
Yaskawa
Discovered issues:
Bad Capacitor(s), Bad Gate Section/Board, 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: 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
CACR-SR05BB1BF-H
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, Leaky Capacitors (Open, Corroded Traces)
Drive Type: CACR AC Servo Drive
Control Type: Speed Control
Rated Output Capacity: 0.5kW
Mount Type: Base Mounted
Design Revision Order: B
Input Form: 200V, Analog
Encoder: 5000 pulses/rev
Applicable Motor Series: F Series
Modification: Hurco