Description
The MSK061C-0600-NN-M1-UG1-NNNN is a high-performance permanent-magnet AC synchronous servo motor within the IndraDyn S series manufactured by Bosch Rexroth (formerly Indramat). Engineered for closed-loop speed and position control, it interfaces natively with Rexroth IndraDrive controller families (HCS, HMU) to serve high-dynamic applications such as machine tools, printing presses, and packaging machinery.
Commercial Availability & Procurement
- Condition: New Original (Factory Sealed / New Surplus) or Refurbished (Fully Tested & Balanced)
- Warranty: 12-Month Industrial Warranty
- Lead Time: Ships within 1–2 business days from active inventory
- Pricing Note: Listed price is indicative and fluctuates based on regional market conditions. Contact our supply team for a formal, time-stamped quote.
Technical Specifications
| Parameter | Value |
| Motor Series / Size | MSK061 (Frame Size: 115 mm flange square) |
| Length Code | C (Continuous Stall Torque up to 8.0 Nm) |
| Maximum Rotational Speed (n_{max}) | 6,000 rpm |
| Cooling Mode | NN (Natural Convection / Surface Cooled) |
| Encoder Type | M1 (Optical Multi-turn Absolute Encoder, Hiperface, 128 periods) |
| Electrical Connection | UG1 (240° Rotatable Plug, Single-Cable M23 for Power/Encoder) |
| Shaft Design | Keyway shaft according to DIN 6885-1 (with shaft seal ring) |
| Holding Brake | Without holding brake (Standard configuration) |
| Degree of Protection | IP65 (Housing and electrical connections when mated) |
Field Experience & Engineering Insights
Thermal Management and Duty Cycles
In field operations, the “NN” cooling designation indicates natural convection. The motor dissipates heat through its aluminum housing surface and the machine mounting flange.
- Heat Sinking: Continuous torque delivery depends on the thermal mass of the mounting surface. If bolted to a low-mass structural bracket or an insulated frame, you must derate the continuous stall torque (M_0) by approximately 15 to 20% to prevent winding thermal overloads.
- Temperature Monitoring: An embedded KTY84 or PT1000 temperature sensor tracks winding temperatures. Ensure the thermal monitoring parameters are active in the IndraDrive software firmware to trigger a controlled shutdown before the winding temperature crosses the critical 155^\circC threshold.
Feedback Configuration & Synchronization
The “M1” optical multi-turn encoder provides high position resolution but introduces environmental dependencies:
- Vibration Shock: Optical glass disks are susceptible to intense shock profiles. For high-impact setups like punching presses or heavy indexing tables, verify that mechanical shock does not exceed the factory rating of 100 m/s^2 (10g).
- Data Retention: The absolute multi-turn mechanism records positions over 4,096 rotations without relying on battery backup. If replacing a standard incremental or single-turn motor with the M1 variant, you must clear the legacy homing parameters in the drive profile and execute a new axis absolute homing procedure.
Connection and Shaft Mechanical Tolerances
- Rotatable Connector: The UG1 right-angle plug provides a 240^\circ rotation radius, simplifying tight layout constraints. Warning: Do not adjust the connector orientation while the cables are attached or under tension; doing so compromises the internal O-ring seal, introducing paths for fluid ingress.
- Shaft Seal Maintenance: The keyway configuration includes a factory-installed shaft seal ring to attain an IP65 rating against splash water and cutting fluids at the drive end. Check the integrity of this seal ring during routine preventive maintenance windows; friction wear over long operating cycles will break down the lip, leading to gearbox or bearing oil contamination inside the motor housing.
System Integration & Compatibility Checklist
- Drive Amplifiers: Integrates with Bosch Rexroth IndraDrive HCS02, HCS03, or HMS01 power units.
- Configuration Software: Parameterized via Rexroth IndraWorks DS deployment suites. Digital motor nameplate properties auto-populate upon connection via the Hiperface protocol interface.
- Cabling Systems: Requires Rexroth IKG (power) and IKS (encoder) bulk cabling assemblies or matching multi-core hybrid lines to satisfy EMC Directive requirements.
Frequently Asked Questions
Can this motor be utilized in washdown environments?
Yes, the motor housing satisfies IP65 requirements when all connections are fully locked down. However, for direct washdown or continuous exposure to highly corrosive chemical agents, specify a variant with an updated chemical-resistant coating (e.g., option “29” or custom marine paint) and verify that the shaft seal is regularly lubricated.
What should I verify if the drive throws a “F2008 RL The Motor Type Has Changed” fault code?
This fault occurs if the drive firmware detects a mismatch between the stored parameter set and the electronic nameplate inside the M1 encoder. This happens during motor replacements. Run the “Load Motor Parameters” instruction via IndraWorks to clear the fault and write the current motor characteristics to the drive memory.
Is it possible to retrofit a holding brake onto this specific motor model?
No. The housing length and internal shaft machining are fixed during manufacturing based on the “NN” type code criteria. Retrofitting an internal holding brake into a motor that shipped without one is not possible in the field. If an application profile changes to require a vertical holding mechanism, you must replace the motor with the corresponding brake variant or add an external mechanical braking assembly to the linear axis.
