Yaskawa SGMAS-01A2A-YR11 Replacement for Sigma-II

Product Overview

Yaskawa SGMAS-01A2A-YR11 Replacement for Sigma-II: Smooth Transition, Zero Compromise

When a Yaskawa Sigma-II servo motor fails on the production floor, every minute of unplanned downtime translates directly into lost output and escalating maintenance costs. The SGMAS-01A2A-YR11 is a 100W AC servo motor from Yaskawa’s proven Sigma-II platform — a series that has powered precision motion control across packaging lines, CNC machining centers, semiconductor handling equipment, and robotic assembly cells for decades. Whether you are replacing a worn unit, upgrading from an earlier Sigma-I motor, or migrating away from a competitor’s servo platform, this motor delivers a reliable, specification-matched transition with minimal engineering effort.

TOPNLMS maintains verified stock of the SGMAS-01A2A-YR11 sourced directly from authorized supply channels. Each unit undergoes pre-shipment functional testing before dispatch, and is backed by a 12-month warranty covering manufacturing defects and operational failures under normal industrial use conditions.

Compatibility Comparison Table

Seamless Upgrade Solutions

Migrating to the SGMAS-01A2A-YR11 is straightforward when the surrounding system components are properly assessed. The motor is designed to pair with Yaskawa’s SGDH-01AE or SGDV-1R6A01A servo drives — if your existing drive is an older SGDA or SGDB unit, this is an ideal opportunity to upgrade the drive simultaneously, as the SGDH series offers significantly improved auto-tuning, vibration suppression, and MECHATROLINK-II communication support.

On the wiring side, the SGMAS-01A2A-YR11 uses Yaskawa’s standard CN1 encoder connector and CN2 power connector. Customers migrating from Sigma-I motors should verify their existing encoder cables (typically JZSP-CMP00-03 or equivalent) are compatible with the Sigma-II encoder pinout. In most cases, a direct cable swap is possible; however, if the legacy installation used an older 1,024 P/R encoder cable, replacement with a 2,048 P/R compatible harness is recommended to maintain positioning accuracy.

For installations where the servo motor is mounted inside a control cabinet or machine enclosure, the 60mm flange footprint of the SGMAS-01A2A-YR11 matches the Sigma-I bolt pattern, eliminating the need for mechanical re-machining. The motor’s compact 100W frame also fits standard DIN-rail adjacent mounting brackets used in many OEM machine designs.

When commissioning the replacement motor, engineers should connect via a Yaskawa JZSP-CVS06-02 programming cable or USB-to-serial adapter to the SGDH/SGDV drive and use SigmaWin+ software to perform an auto-tuning cycle. If the previous system used a SGDM drive with analog speed reference, verify that the speed reference scaling parameters (Pn300–Pn302) are correctly configured for the new motor’s torque constant. For multi-axis systems, the SGDH drives can be networked via MECHATROLINK-II using an NS115 or NS200 communication module, allowing centralized parameter management across all axes without individual drive access.

In applications where the SGMAS-01A2A-YR11 replaces a third-party servo motor — such as a Mitsubishi HC-MFS13 or Panasonic MHMD022G1U — the primary considerations are shaft diameter compatibility, encoder protocol translation, and drive interface matching. In these cross-brand migration scenarios, a Yaskawa SGDV drive with DeviceNet or EtherCAT option card can bridge communication protocol differences, while a flexible coupling or shaft adapter resolves minor dimensional mismatches.

Customers upgrading entire servo axes should also evaluate the SGMAH-01AAA41 (Sigma-II, 100W, with absolute encoder) as an alternative if the application requires battery-backed absolute position retention across power cycles — particularly relevant in vertical axis or gantry applications where homing on restart is not acceptable.

Retrofit Guidance FAQ

Q1: Can the SGMAS-01A2A-YR11 replace a Sigma-I motor without changing the servo drive?
A: In most cases, yes — if the existing drive is an SGDM or SGDH series. The Sigma-II motor is backward-compatible with SGDM drives at the mechanical and electrical level. However, encoder cable pinout differences between Sigma-I and Sigma-II may require a new cable or adapter. Parameter re-tuning via SigmaWin+ is strongly recommended after replacement.

Q2: Is the wiring connector the same as older Sigma-II motors of the same frame size?
A: Yes. The SGMAS-01A2A-YR11 uses the standard Sigma-II CN1 (encoder) and CN2 (power) connector layout consistent across all 60mm frame Sigma-II motors. Existing cables from a same-frame Sigma-II motor can typically be reused without modification.

Q3: What communication protocols does the compatible SGDH/SGDV drive support for this motor?
A: The SGDH drive supports analog ±10V speed/torque reference and pulse train position reference. The SGDV drive additionally supports MECHATROLINK-II and MECHATROLINK-III (with appropriate option card), as well as EtherCAT and DeviceNet variants. Protocol selection depends on the host controller — Yaskawa MP2000 series, Mitsubishi Q-series, or Siemens S7 controllers can all interface with appropriate option modules.

Q4: How much physical space is needed to replace the motor in an existing machine enclosure?
A: The SGMAS-01A2A-YR11 has a 60mm square flange and a body length of approximately 72mm (excluding shaft). This matches the Sigma-I 100W motor envelope closely. In tight enclosures, verify rear clearance for the encoder connector and cable bend radius. No additional mounting hardware is required when replacing a same-frame Sigma-II or Sigma-I motor.

Warranty Assurance

Every SGMAS-01A2A-YR11 unit shipped by TOPNLMS is covered by a 12-month warranty from the date of delivery. This warranty covers manufacturing defects, encoder failures, winding faults, and bearing failures under normal operating conditions. Prior to dispatch, each motor undergoes a pre-shipment inspection including insulation resistance testing, encoder signal verification, and shaft runout measurement.

In the event of a warranty claim, TOPNLMS provides a replacement unit or full refund within the warranty period. Our technical support team is available to assist with installation verification, parameter configuration guidance, and fault diagnosis. Typical order processing time is 1–3 business days, with international express shipping available to most destinations within 5–7 business days.

For urgent breakdown situations, expedited dispatch is available — contact our team directly to confirm stock availability and lead time before placing your order.