Yaskawa SGMPH-04A
SGMPH Sigma-II
Lifecycle & replacement
Yaskawa defines this status as: “Legacy products can still be purchased, but are not intended for new applications.”
- SGM7PListed under “Retrofit / Upgrade Product”IAC note: Joined to matrix row: SGMPH Sigma II; successor column: Retrofit / Upgrade Product
- Applies to Yaskawa America (the Americas)
- Yaskawa support matrix: replacement available, factory repair available, exchange not listed
On a servo axis the amplifier, motor, encoder and cables are a matched set. When a legacy component fails, the manufacturer's current generation usually does not pair with the rest of the original set, so the whole axis typically has to be upgraded together: drive, motor and cables, and often controller parameters or firmware. Replacing only the failed unit is rarely possible. Before ordering, talk to us: we can quote a like-for-like legacy spare or exchange unit to keep the existing installation running, or engineer a matched upgrade path for the axis.
IAC stocks legacy spares and exchange units and quotes upgrade paths. Send us the nameplate details and we will confirm a compatible replacement.
Source: Yaskawa America Support By Product - Servomotors, retrieved 2026-09-01.
Technical specifications
Ratings
| System Voltage | 100V AC |
| Rated Output - W (hp) | 400 (0.54) |
| Rated Torque * - oz • in | 180 |
| Rated Torque * - N • m | 1.27 |
| Instantaneous Peak Torque * - oz • in | 542 |
| Instantaneous Peak Torque * - N • m | 3.82 |
| Continuous Rated Current - A RMS | 2.6 |
| Maximum Peak Current - A RMS | 8 |
| Rated Angular Acceleration - rad/s 2 | 38500 |
Ratings [SGMPH Sigma-II]
| System Voltage | 100V AC |
| Moment of Inertia - Motor without Brake - oz • in • s 2 x 10 -3 | 4.69 |
| Moment of Inertia - Motor without Brake - kg • m 2 x 10 -4 | 0.331 |
| Moment of Inertia - Motor with Brake - oz•in•s 2 x 10 -3 | 6.234 |
| Moment of Inertia - Motor with Brake - kg • m 2 x 10 -4 | 0.44 |
| Holding Brake (at 20°C) - Capacity - W | 7.6 |
| Holding Brake (at 20°C) - Coil Resistance - W | 76 |
| Holding Brake (at 20°C) - Rated Current - A | 0.32 |
Ratings [SGMPH Sigma-II] (2)
| System Voltage | 200V AC |
| Rated Output - W (hp) | 400 (0.54) |
| Rated Torque * - oz • in | 180 |
| Rated Torque * - N • m | 1.27 |
| Instantaneous Peak Torque * - oz • in | 542 |
| Instantaneous Peak Torque * - N • m | 3.82 |
| Continuous Rated Current - A RMS | 2.6 |
| Maximum Peak Current - A RMS | 8 |
| Rated Angular Acceleration - rad/s 2 | 38500 |
Ratings [SGMPH Sigma-II] (3)
| System Voltage | 200V AC |
| Moment of Inertia - Motor without Brake - oz • in • s 2 x 10 -3 | 4.69 |
| Moment of Inertia - Motor without Brake - kg • m 2 x 10 -4 | 0.331 |
| Moment of Inertia - Motor with Brake - oz•in•s 2 x 10 -3 | 6.234 |
| Moment of Inertia - Motor with Brake - kg • m 2 x 10 -4 | 0.44 |
| Holding Brake (at 20°C) - Capacity - W | 7.6 |
| Holding Brake (at 20°C) - Coil Resistance - W | 76 |
| Holding Brake (at 20°C) - Rated Current - A | 0.32 |
Documentation & CAD
Files hosted by Yaskawa; links open the official document or download page. 3D CAD requires a free Yaskawa login.
Manuals
2D drawings
Get a quote for a replacement
Industrial Automation Co. stocks, sources, and repairs Yaskawa parts — new, refurbished, or exchange units with warranty.
Specifications compiled from official Yaskawa product documentation. Always confirm against the datasheet for your exact unit and revision.