Yaskawa SGDV-1R6A11A Sigma-5 SERVOPACK 200W Servo Amplifier

MECHATROLINK-II Servo Amplifier for Yaskawa Sigma-5 Rotary Servomotors

Specifications

Industrial Applications

• Electronics manufacturing equipment — pick-and-place heads, dispensing valves, inserters and semiconductor handling stages that need fast settling and repeatable positioning.
• Packaging and converting machinery — film feed, sealing, cutting and labelling axes synchronised over the MECHATROLINK-II network.
• Small robots, gantries and precision X-Y stages driven by 200 W class Sigma-5 rotary servomotors.
• Machine tools and metalworking equipment — auxiliary axes, tool changers, indexers and feed drives.
• Inspection, test and measuring equipment where high resolution and smooth low-speed motion matter.
• Multi-axis retrofit projects: replacing a single failed SERVOPACK on an existing MECHATROLINK-II machine without re-engineering the whole axis.

Tell us the machine, the axis and the motor model and we confirm whether this 200 W rating and interface are the right match before you order.

Design Purpose

The SGDV SERVOPACK is the amplifier stage between the motion controller and the servomotor. On this MECHATROLINK-II reference model the host controller sends motion commands over the network rather than as pulses or an analog voltage; the amplifier converts those commands into precisely regulated motor current using IGBT-based PWM with sine-wave current control, and closes the loop with serial encoder feedback coming back from the motor. The job is not simply to vary speed — it is to hold position, regulate speed and limit torque accurately and repeatedly. That is the fundamental difference from the variable-frequency drives in this catalog: a VFD varies the speed of an induction motor for fans, pumps and conveyors, while this servo amplifier closes a high-resolution loop around a permanent-magnet rotary servomotor.

The rating defines its place. At 200 W output and 1.6 A continuous, this unit serves the small-axis end of the Sigma-5 range — light loads, small mechanisms, feeders and indexing drives — not large press or gantry axes. Selection has to match three things at once: the servomotor model, the command interface your controller expects, and the encoder cabling. Within the same 1.6 A rating, order code 11 is the MECHATROLINK-II variant while 01 is the analog voltage / pulse train variant, so two amplifiers of identical power are not interchangeable on the same machine.

The final letter is the design revision order. This unit is revision A; SGDV-1R6A11B is the same rating and interface at revision B. Because revision changes can carry configuration differences, the full order code on your existing unit should be matched rather than substituted on power rating alone — send us the nameplate and we confirm it.

One design point matters when planning the installation: this rating has no internal regenerative resistor. For axes with high inertia, vertical loads or frequent emergency stops, an external regenerative resistor is required and is not supplied with the SERVOPACK.

Common Failure Modes

• Overvoltage or regenerative overload alarm — frequent emergency stops, vertical axes and high-inertia loads push regenerated energy back into the DC bus. Because this rating has no internal regenerative resistor, a correctly sized external resistor is usually the fix.
• Overcurrent alarm — a shorted motor or encoder cable, a grounded motor winding or a mechanically jammed load drives protective shutdown.
• Encoder error or feedback loss — damaged encoder wiring, contamination or electrical noise interrupts the closed loop, leaving the axis unable to hold position.
• Main-circuit supply error or undervoltage alarm — supply dips, loose terminals or a failed contactor drop the bus below the amplifier's threshold.
• MECHATROLINK-II communication fault — a wrong station address, a changed communication cycle, missing termination or disturbed cabling leaves the axis not ready after replacement.
• Thermal fault / overheating — blocked ventilation, high ambient temperature or a heatsink loaded with dust raises internal temperature on these fanless units.
• Parameter loss or servo-not-ready — cleared or corrupted parameters leave the amplifier unable to enable the axis after a swap.

If your amplifier displays a specific alarm code, send us the exact code together with the servomotor model, the controller type and the load description — we will help diagnose the fault and quote the matched replacement.

Why Choose Us

• Specialised in industrial robot and motion spare parts for ABB, FANUC, KUKA and YASKAWA.
• We supply the exact Yaskawa unit SGDV-1R6A11A (Sigma-5 SERVOPACK, 200 W / 1.6 A, MECHATROLINK-II, design revision A), matching the number in your equipment records.
• We verify the servomotor model, the command interface code and the design revision before you order, so you receive the correct variant rather than a mismatch that stops the machine on arrival.
• We flag the parts that are not in the box — the external regenerative resistor in particular — so your installation is not held up waiting for a second shipment.
• Each unit is inspected and functionally checked, then packed to protect the terminals and housing, with full order tracking from Shanghai.
• Technical support for drive selection, commissioning guidance and alarm diagnosis; repair service offered for defective units.
• Quote-based service — send your inquiry with the motor model, controller type, load description and required condition for a matched offer.

Related Products

• SGMJV-02ADE6E — Yaskawa Sigma-5 rotary servomotor, 200 W, 3000 rpm; the standard motor pairing for the 1.6 A amplifier in Yaskawa's selection tables. Send us your motor nameplate so we can confirm the exact match.
• SGDV-2R8A11A — Sigma-5 SERVOPACK servo amplifier, the next rating up at 0.4 kW / 2.8 A on 200 V, same series and same MECHATROLINK-II interface when your axis needs more current.
• SGDV-1R6A01A — the same 1.6 A / 200 W rating with the analog voltage / pulse train reference instead of MECHATROLINK-II; the direct comparison when your controller does not use the network.
• SGDV-1R6A11B — the same rating and interface at design revision B. Do not swap on power rating alone — send us the full order code on your existing unit and we confirm the equivalent.
• SGDV-R90A11A — Sigma-5 SERVOPACK servo amplifier one step down at 0.1 kW / 0.91 A on 200 V, for lighter axes in the same series and interface.
• External regenerative resistor for SGDV-1R6A ratings — required where regenerated energy exceeds the specified value, and not supplied with the amplifier. Send us your load inertia and duty cycle and we size and quote the resistor with the drive.