Description
The Siemens 1FT6034-4AK71-4AG1 is a permanent-magnet synchronous servo motor from the SIMOTICS S product line, engineered for high-dynamic motion control applications in industrial automation, machine tools, and multi-axis positioning systems.
In field installations, this motor operates with digital drive controllers such as the SINAMICS S120 or SIMODRIVE 611 series, providing precise speed, torque, and positional control for closed-loop servo drive architectures compliant with IEC standards.
Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Siemens |
| Product Series | SIMOTICS S (1FT6) |
| Model / MLFB | 1FT6034-4AK71-4AG1 |
| Motor Type | Permanent-magnet synchronous servo motor |
| Rated Torque | 1.40 Nm (Stall torque approx. 2.0 Nm) |
| Rated Speed | 6,000 rpm (Max. speed up to 9,700 rpm) |
| Rated Current | 2.1 A (Stall current approx. 2.6 A) |
| Rated Voltage | 294 V DC (via inverter) |
| Feedback System | Built-in encoder (verify specific resolver or absolute encoder variant via nameplate) |
| Holding Brake | Integrated holding brake (verify suffix configuration) |
| Enclosure Protection | IP64 (IP67 with optional shaft sealing ring) |
| Cooling Type | Natural convection (IC 410) |
Procurement and Availability
- Condition: New Surplus / Factory Sealed / Refurbished Tested options available upon request.
- Lead Time: 1 to 3 business days for stock items; verify factory availability for specific build configurations.
- Warranty: 12-month standard warranty from date of shipment.
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- Price: Indicative market pricing applies. Price subject to market conditions; contact us for a firm quote.
Integration and Compatibility Notes
The 1FT6034 requires matched power and feedback cable assemblies connected to a compatible servo drive system.
- Drive Compatibility: Designed for operation with SINAMICS S120 power units and Control Units, as well as legacy SIMODRIVE 611 digital drive systems. Verify parameterization and firmware support before commissioning.
- Thermal Protection: Features an integrated PTC thermistor or KTY84 temperature sensor within the motor winding to prevent thermal overload. Ensure proper alarm wiring to the drive trip circuit.
- Mechanical Mounting: Flange-mounted design. Ensure correct shaft alignment and coupling tolerances to prevent premature bearing wear under high acceleration cycles.
Frequently Asked Questions
Q: Can this servo motor be driven by third-party inverters? A: The 1FT6034 is optimized specifically for Siemens drive systems (SINAMICS / SIMODRIVE) using proprietary encoder feedback protocols. Operation with third-party drives requires compatible feedback conversion modules and careful tuning.
Q: What does the “-4AG1” suffix designate in the model code? A: The suffix characters designate specific manufacturing options, including encoder type, shaft design (keyed vs. plain shaft), and holding brake configuration. Verify the exact nameplate details against the Siemens ordering data sheet.
Q: Is external forced-air cooling required during continuous operation? A: No. This motor is rated for natural convection cooling (IC 410) within standard ambient temperature limits of 0 to +40 °C, provided adequate thermal dissipation surface area is available on the mounting machine frame.
