Repair for Yaskawa DR1-02AC

Servopack

ID: 5127

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Repair	€ 700.00
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Drive Amplifier

Description

The Yaskawa SGDM-01AD is a compact AC servo amplifier of the Sigma-II generation for low-power drives. It is technically based on the SGDH platform, which is why alarms and troubleshooting of the SGDH series are fully compatible. The device is proven in continuous operation and is frequently used in compact CNC axes, handling systems, and special machines.

Overview

Device category: AC Servo Amplifier (Servopack)
Series/Class: Sigma-II, 200-V class
Power class: 0.1 kW
Design: compact, convection-cooled, service-friendly

Model Designation

SGDM = Yaskawa Sigma-II Servopack (Compact Series)
01 = Power level 0.1 kW
A = 200-V class
D = Digital/Analog Interface

Technical Data

Feature	Value
Manufacturer	Yaskawa Electric Corporation
Input Voltage	1 Ph 200–230 V AC, 50/60 Hz
Input Current	2.0 A
Output Voltage	3 Ph 0–230 V AC
Output Current	0.91 A
Output Power	0.10 kW (0.13 hp)
Ambient Temperature	0–55 °C
Cooling	Convection cooling
Protection Class	IP1X
Weight / Dimensions	n. a.

Connections & Interfaces

L / N – 1-Phase mains input 200–230 V
U / V / W – Motor outputs
CN1 – Control and I/O interface (24 V DC)
CN2 – Encoder connection
CN3 – RS-232C / Parameterization (SigmaWin+)
LED Display – Status and alarm codes

Control Board / Modules

Module	Description	Quantity
Control Board	Control, logic, communication	1
Power Board	Output stage for low power	1
DC Link	Capacitors / Energy buffer	1
Power Section	Compact power section	1

Alarms & Troubleshooting (SGDH compatible, 10 most important)

Code	Designation	Typical Finding	Check	Remedy
A.02	Parameter Breakdown	EEPROM data faulty	Initialization (Fn005)	Reload parameters
A.05	Combination Error	Motor/Drive incompatible	Check type	Use matching motor
A.10	Overcurrent / Overheat	Overcurrent or overtemperature	Check U/V/W, load	Check power section
A.30	Regeneration Error	Regeneration path error	Check internal regeneration	Repair drive
A.32	Regenerative Overload	Regeneration too high	Check load profile	Reduce load
A.40	Overvoltage	DC link voltage too high	Measure mains voltage	Check supply
A.41	Undervoltage	Supply too low	Check input	Stabilize mains
A.51	Overspeed	Encoder/phase error	Check encoder	Correct wiring
A.71	Overload 1	Short-term overload	Check current curve	Check mechanics
A.C9	Encoder Comm Error	Encoder communication disturbed	Cable / Shielding	Replace cable

Typical Applications

Compact CNC axes
Pick-and-place systems
Fine positioning modules
Laboratory and testing technology
Special machines with small servos

Service Notes

Save parameters before service
Regularly check encoder and motor cables
Keep ventilation openings clean
No insulation measurement (Megger) when installed
In case of encoder errors, always check cable and shielding

Repair Description

Input check: Visual inspection, measurement of mains and DC link voltage, short-circuit test
Disassembly & Cleaning: Opening the housing, cleaning the boards, visual inspection of connectors
Analysis: Checking the power stage, capacitors, current measurement, and control logic
Repair: Replacement of defective power components and aged parts
Testing & Load Test: Test run with reference motor, monitoring current and temperature
Long-term test & Conclusion: Continuous operation under load, documentation of measurement results