Product Introduce
MPL-B330P-MJ72AA is a low-inertia, brake-less three-phase AC servo motor of the Kinetix MP series, with a voltage of 460V AC three-phase, a peak torque of 11.1 N·m, and an absolute multi-turn encoder (Hiperface protocol).
Comparison with MPL-B330P-MJ74AA with brake
| Feature | MPL-B330P-MJ72AA (No Brake) | MPL-B330P-MJ74AA (With Brake) |
|---|---|---|
| Holding Brake Configuration | No holding brake | Integrated 24V DC power-off holding brake |
| Weight | 4.6 kg | Slightly heavier (brake assembly added) |
| Wiring Requirements | Only motor power cables and encoder cables | Additional 24V DC power cables for brake control required |
| Typical Application | Horizontal axes, non-load-holding scenarios | Vertical axes, load-holding, emergency stop applications |
| Rotor Inertia | 0.00012 kg·m² | Slightly higher (due to brake rotor addition) |
Code Analysis
| Code | Detailed Explanation |
|---|---|
| MPL | Series identifier: Allen-Bradley MPL series low-inertia brushless AC servo motor, featuring high dynamic response and high-precision positioning, suitable for medium and small power motion control applications |
| B | Voltage/frame base code:
• Voltage rating: 460V AC three-phase (A=230V, B=460V, which is the core dimension for model selection) • Associated frame: Basic size definition for Frame 3 (100mm flange) |
| 330 | Combined code for frame + stack length:
• First digit “3”: Frame 3 (100mm flange, compliant with IEC Metric FF mounting standard) • Last two digits “30”: Stack length code (corresponding to 76.2mm stack length, which directly determines the torque/power rating) |
| P | Performance/configuration code: Standard performance grade without enhanced heat dissipation or protection (derivative codes include S for high protection, E for customized configuration) |
| MJ | Combined code for feedback + connector:
• M: Absolute multi-turn encoder (Hiperface protocol, supporting power-off memory positioning, different from H for incremental encoder) • J: SpeedTEC DIN connector (180° rotatable right-angle type, compatible with single-cable solutions) |
| 72 | Mechanical configuration code (shaft + brake):
• 7: Keyed shaft (no shaft seal, customizable with shaft seal if needed) • 2: No brake (code 74 means with 24V DC power-off brake) |
| AA | Version/customization attribute code: Industrial-grade standard configuration without non-standard customization (e.g., non-standard shaft diameter, special protection, customized cables, etc.) |
FAQ:
1.Does the MPL-B330P-MJ72AA absolute multi-turn encoder (Hiperface protocol) require a zero return operation for the first time?
The Hiperface protocol absolute multiturn encoder of the MPL-B330P-MJ72AA usually does not require traditional zeroing for the first time:
- The encoder has its own power-off memory function, and it can output absolute position when powered on; driver parameter matching, encoder initialization, and mechanical origin calibration need to be completed (it only takes one time to establish the corresponding relationship between electrical and mechanical positions).
- Recalibration is required under special circumstances: unplug and unplug the encoder cable, adjust the transmission chain, and reset the driver/encoder parameters.
- Pay attention to distinguish between “encoder absolute position” and “device mechanical origin”. Third-party drivers need to confirm that they support the Hiperface protocol.
2.The driver fails to perform motor parameter auto-tuning. What are the common reasons related to MPL-B330P-MJ72AA?
- Wiring/Feedback: Wrong/loose phase sequence of the three-phase wire; poor contact of the encoder cable, improper shielding grounding; failure to read the electronic tag.
- Machine/Load: No-load adjustment is not performed, the load is stuck; the inertia ratio exceeds the recommended value; the transmission chain gap is large.
- Parameters/modes: The motor rated parameters (460V/power, etc.) are entered incorrectly; the tuning mode is selected incorrectly; the current limit/time setting is too small; the firmware version is incompatible.
- Hardware/Interference: Motor winding failure; abnormal drive current detection; strong electromagnetic interference leads to data confusion.
3.What are the standard bolt specifications and torque values for flange mounting of MPL-B330P-MJ72AA?
| Item | Specification |
|---|---|
| Standard Bolt | 4 pcs of M12×1.75 (class 8.8 or 10.9), length determined by mounting plate thickness (typically 25–30 mm) |
| Torque Value | Class 8.8: 45–50 N·m (33–37 lb‑ft); Class 10.9: 60–65 N·m (44–48 lb‑ft) (Rockwell recommended for IEC 100 mm frame MPL motors) |
| Mounting Requirement | Evenly tighten in diagonal sequence to avoid flange deformation; use flat washers; ensure mounting surface flatness ≤ 0.1 mm |
Looking for Original New Kinetix MP 480V AC Rotary Servo Motor MPL-B330P-MJ72AA?
Contact US to get a good prices now !
Reviews
There are no reviews yet.