Product Overview
Yaskawa SGMAH-04A1A61D-0Y Replacement for SGMAH E Series: Seamless Transition & Legacy System Compatibility
Upgrading or replacing a Yaskawa SGMAH-04A1A61D-0Y AC Servo Motor in an active production environment demands more than a simple part swap. Whether your existing system is built around an aging Yaskawa SGMAH E Series servo loop, a legacy MP2000 or MP3000 machine controller, or a CACR-SR series servo pack, the transition to a verified replacement unit must preserve wiring topology, encoder feedback integrity, communication protocol compatibility, and physical mounting geometry — all without triggering extended downtime or costly reprogramming cycles.
This listing covers a fully tested, ready-to-ship Yaskawa SGMAH-04A1A61D-0Y 400W AC Servo Motor, sourced and inspected to meet OEM specifications. It is engineered as a direct drop-in replacement for SGMAH E Series installations and is compatible with the broader Yaskawa Σ (Sigma) servo ecosystem.
Compatibility Comparison Table
| Parameter |
Legacy / Outgoing Unit |
SGMAH-04A1A61D-0Y (This Unit) |
| Model Series |
SGMAH E Series (various) |
SGMAH E Series |
| Rated Output Power |
400W |
400W |
| Supply Voltage |
100–115V AC / 200–230V AC |
200–230V AC (suffix A61) |
| Encoder Type |
Incremental 13-bit / 17-bit |
Incremental 13-bit (suffix D) |
| Shaft Configuration |
Straight / Keyed |
Straight, no key, no brake (suffix 0Y) |
| Flange Size |
60mm square |
60mm square |
| Mounting Interface |
Standard SGMAH bolt pattern |
Direct bolt-on replacement |
| Connector / Wiring |
CN1 power + CN2 encoder |
CN1 power + CN2 encoder (same pinout) |
| Compatible Servo Drive |
SGDH-04AE, SGDM-04ADA, CACR-SR series |
SGDH-04AE, SGDM-04ADA, CACR-SR series |
| Communication Protocol |
Analog / Pulse train (MECHATROLINK-I optional) |
Analog / Pulse train |
| Replacement Type |
Direct OEM replacement |
✔ Drop-in compatible |
| Warranty |
— |
12-Month Warranty |
Seamless Upgrade Solutions
A successful SGMAH-04A1A61D-0Y retrofit rarely involves the servo motor alone. In most SGMAH E Series installations, the motor operates as part of a tightly integrated motion control loop. During the replacement process, engineers typically inspect and may simultaneously address adjacent components to ensure system-level reliability.
The servo drive — most commonly a Yaskawa SGDH-04AE or SGDM-04ADA — must be parameter-matched to the replacement motor’s encoder resolution and inertia ratio. If the existing drive shows fault history or degraded IGBT performance, sourcing a matched drive alongside the motor eliminates a second service call. Similarly, the SGDH series servo pack encoder cable (CN2 side) should be inspected for pin corrosion or shielding damage, as encoder signal integrity is critical for stable position feedback.
On the power supply side, installations using a Yaskawa JUSP-OP05A-1 regenerative resistor unit or a dedicated CACR-SR series servo controller should verify that the regenerative braking capacity matches the 400W motor’s deceleration profile. In multi-axis cabinets, the SGDH-series common DC bus configuration may require rebalancing after motor replacement.
For systems integrated with a Yaskawa MP2300 or MP3200 machine controller, the servo axis parameters (Pn000–Pn212 register block) must be re-verified post-swap. If the legacy unit used a 13-bit encoder and the replacement maintains the same resolution, no axis re-tuning is required — only a parameter confirmation and test cycle. However, if the installation previously used a SGMAH-04A1A21D (100V variant) and is now migrating to the 200V A61 suffix, the drive input voltage configuration must be updated accordingly.
Control cabinet space is rarely a constraint with this replacement, as the SGMAH 60mm flange footprint is unchanged. However, if the retrofit is part of a broader panel upgrade involving a Yaskawa JZRCR-NPP01B I/O terminal block or a SI-EN3/V MECHATROLINK-III communication module, those components should be staged and tested in parallel to avoid sequential delays on the production floor.
For facilities managing spare parts inventory across multiple servo axes, it is common practice to simultaneously stock a SGMAH-02A1A61D-0Y (200W) and SGMAH-08A1A61D-0Y (750W) alongside the 400W unit to cover adjacent axis ratings within the same machine family. This reduces lead time exposure during unplanned failures.
Retrofit Guidance FAQ
Q: Is the wiring harness compatible with my existing SGMAH installation?
A: Yes. The SGMAH-04A1A61D-0Y uses the same CN1 (power) and CN2 (encoder) connector pinout as all SGMAH E Series motors. No rewiring is required for a like-for-like replacement. Verify cable shielding continuity before reconnection.
Q: Do I need to re-tune the servo drive after replacement?
A: In most cases, no. If the replacement motor matches the original’s encoder type (13-bit incremental) and rated inertia, existing Pn gain parameters remain valid. A test cycle at reduced speed is recommended before returning to full production load.
Q: Is this motor compatible with MECHATROLINK-I or MECHATROLINK-II communication?
A: The SGMAH-04A1A61D-0Y itself is a pulse-train/analog interface motor. MECHATROLINK communication is handled at the servo drive (SGDH or SGDM) level, not the motor. Your existing drive communication configuration is unaffected by this motor replacement.
Q: The original motor had a keyway on the shaft. Will this unit fit my coupling?
A: The -0Y suffix denotes a straight shaft without keyway or brake. If your coupling requires a keyed shaft, please confirm your shaft specification before ordering. Alternative SGMAH suffix configurations are available upon request.
Q: Can this motor be installed in a confined control cabinet with limited clearance?
A: The SGMAH 60mm flange and body dimensions are identical across the E Series 400W range. No additional clearance is required versus the original unit. Ensure adequate airflow around the motor body per Yaskawa installation guidelines.
Q: What if my system uses a CACR-SR series servo controller instead of SGDH?
A: The SGMAH-04A1A61D-0Y is compatible with CACR-SR series controllers. Verify the drive’s motor code parameter is set to match the SGMAH 400W 200V specification. No hardware modification is required.
Warranty Assurance
Every SGMAH-04A1A61D-0Y unit shipped from TOPNLMS undergoes pre-shipment functional inspection covering encoder signal output, winding resistance balance, insulation resistance, and shaft runout. Units are packed in anti-static, shock-absorbing packaging suitable for international freight.
- 12-Month Warranty: Covers manufacturing defects and verified functional failures under normal operating conditions from the date of receipt.
- Replacement Support: Defective units confirmed within the warranty period are eligible for direct replacement dispatch, minimizing your production downtime.
- After-Sales Response: Technical support is available via email at [email protected] or by phone at +86 18359293191. Response within 1 business day for warranty claims.
- Shipping: In-stock units ship from Xiamen within 1–3 business days. DHL, FedEx, and UPS express options available for urgent requirements.
- Procurement Assurance: All units are traceable to verified supply channels. Documentation including test records and packing lists is provided upon request.
For volume procurement, multi-axis kitting, or system-level retrofit consulting, contact our team directly to discuss lead times, pricing, and technical compatibility review.