Yaskawa SRDA-SDA14A01A-E Servo Amplifier for Industrial Motors

Yaskawa Servo Amplifier for Industrial Motion Axes

Specifications

Industrial Applications

• Automated assembly lines and special-purpose machines — indexing tables, press-fit stations, screwdriving and dispensing axes that must return to the same position every cycle.
• Machine tools and metalworking equipment — feed axes, tool changers, turrets and auxiliary positioning drives.
• Packaging machinery — film feed, cut-to-length, sealing jaws and labelling heads running on short, repeatable cycles.
• Printing, converting and web-handling equipment — register control and tension axes that must stay synchronized with a running web.
• Electronics and semiconductor assembly — placement heads, bonders and inspection stages where settling time and resolution decide yield.
• Robot cells, gantries and pick-and-place units — multi-axis motion where several amplifiers share a command bus.

Design Purpose

A servo amplifier exists to make a motor obey a command precisely. The host controller — a PLC, a motion controller, a CNC or a robot controller — sends a target; the amplifier compares that target against the encoder feedback coming back from the motor and corrects the current it delivers, thousands of times per second. What the machine operator sees as a fast, repeatable, quiet axis is the amplifier holding three variables at once: position, speed and torque.

That is why amplifier selection cannot be done on power rating alone. The command interface the host expects, the encoder protocol the motor speaks, and the motor's own current and voltage requirements all have to line up. Two amplifiers with similar output ratings can still be wrong for each other if the interface variant differs. For this part number the safest route is to match against the unit being replaced: send us the nameplate photo, the motor model and the controller type, and we confirm the replacement before it ships.

Common Failure Modes

• Overcurrent and short-circuit trips — usually a failed output stage, or a motor cable with damaged insulation or a shorted winding. Check the motor and cable insulation before fitting a replacement, or the new unit will fail the same way.
• Overtemperature shutdowns — blocked or failed cooling fan, dust-packed heatsink fins, or a cabinet running too hot. Look at the fan and the ventilation path before blaming the amplifier.
• Ageing DC bus capacitors — bulged tops, a burnt smell, or trips that get more frequent as the unit warms up. This is the most common failure in amplifiers that have run for more than a decade.
• Encoder and feedback errors — often the cable, the connector or electrical noise rather than the amplifier. Reseat and inspect the encoder cable before replacing the unit.
• Regeneration faults — an open or overloaded external braking resistor, or a deceleration duty the resistor was never sized for.
• Control supply faults — blown internal fuses or a failed control power supply; the amplifier is dead with no display and no response.
• Loose or oxidised terminals — heat discolouration around the power or motor terminals, intermittent trips that change when the cabinet is moved.

Send us the fault code or the symptom your machine reports, along with a photo of the amplifier nameplate, and we confirm the diagnosis and the matching replacement.

Why Choose Us

• Specialized in industrial robot and motion spare parts for ABB, FANUC, KUKA and Yaskawa.
• Each unit is inspected before shipment; condition is confirmed with you before you order.
• We match the part number to your machine before supply — send us the nameplate and motor model and we confirm the pairing rather than shipping on rating alone.
• Technical support available for installation, parameter backup and commissioning questions.
• Repair and testing service offered for faulty units.

Related Products

• Yaskawa SGDV series SERVOPACK servo amplifiers — the current-generation Yaskawa amplifier range; send us your axis rating and command interface and we check availability.
• Yaskawa servomotors — send us the motor nameplate and we match the motor to your amplifier, or the amplifier to your motor.
• Encoder cables and motor power cables for Yaskawa servo axes — tell us the connector type and the length you need.
• Regenerative resistor units for Yaskawa servo systems — sized to your deceleration duty.
• Repair and testing service for faulty Yaskawa servo amplifiers — send us the unit or the fault history and we assess it.