Siemens 1FT6 Series Servo Motors – 1FT6105-8AC71-4AG0

Technical Dossier

Product Details And Specifications

Siemens 1FT6 Series Technical Notes

Q: How are RFQ terms confirmed?
A: Quantity, required condition, documentation needs, destination and sourcing route are confirmed during RFQ review before quotation.

1FT6 Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked configurations within the 1FT6 series. Organized by frame size and encoder type:

Frame Size 063 — Compact Axis Applications

• 1FT6062-6AC71-4AG0: Frame 63, 400V, 6 Nm rated torque, incremental encoder, natural cooling, DRIVE-CLiQ compatible
• 1FT6062-6AF71-4AG0: Frame 63, 400V, 6 Nm, sin/cos 1Vpp encoder, natural cooling, SIMODRIVE 611 compatible

Frame Size 084 — Mid-Range Axis Drives

• 1FT6084-8AC71-4AG0: Frame 84, 400V, 16 Nm rated torque, incremental encoder, natural cooling
• 1FT6084-8AF71-4AG0: Frame 84, 400V, 16 Nm, sin/cos encoder, natural cooling
• 1FT6084-8SC71-4AG0: Frame 84, 400V, 16 Nm, incremental encoder, forced-air cooling (higher duty cycle)

Frame Size 105 — High-Torque Axis Drives

• 1FT6105-8AC71-4AG0: Frame 105, 400V, 36 Nm rated torque, 2048 ppr incremental encoder, natural cooling, DRIVE-CLiQ via SMC20 — this listing
• 1FT6105-8AF71-4AG0: Frame 105, 400V, 36 Nm, sin/cos 1Vpp encoder, natural cooling
• 1FT6105-8SC71-4AG0: Frame 105, 400V, 36 Nm, incremental encoder, forced-air cooling
• 1FT6105-8WC71-4AG0: Frame 105, 400V, 36 Nm, incremental encoder, water cooling

Frame Size 132 — Heavy-Duty Spindle & Press Applications

• 1FT6132-6AC71-4AG0: Frame 132, 400V, 60 Nm rated torque, incremental encoder, natural cooling
• 1FT6132-6AF71-4AG0: Frame 132, 400V, 60 Nm, sin/cos encoder, natural cooling
• 1FT6132-6SC71-4AG0: Frame 132, 400V, 60 Nm, incremental encoder, forced-air cooling
• 1FT6132-6WC71-4AG0: Frame 132, 400V, 60 Nm, water cooling, high-cycle press lines

Resolver-Based Variants (Legacy SIMODRIVE 611 Compatibility)

• 1FT6084-8AC71-3EG0: Frame 84, resolver feedback, SIMODRIVE 611 analog interface, 16 Nm
• 1FT6105-8AC71-3EG0: Frame 105, resolver feedback, SIMODRIVE 611 analog interface, 36 Nm
• 1FT6062-6AC71-3EG0: Frame 63, resolver feedback, SIMODRIVE 611 analog interface, 6 Nm

Sourcing Hard-to-Find & Obsolete 1FT6 Parts

Q: How is condition confirmed before quotation?
A: Available condition, photos, test records and documentation are checked according to the requested model and sourcing channel before a formal RFQ response.

Quality Control for the 1FT6 Range

Each 1FT6 unit processed by DriveKNMS undergoes a structured test protocol specific to the mechanical and electrical architecture of the series. Winding insulation resistance is measured at 500V DC (minimum 100 MΩ acceptance threshold). Phase-to-phase resistance balance is verified within ±2% tolerance. Encoder signal integrity — including index pulse, A/B quadrature symmetry, and sin/cos amplitude for 1Vpp variants — is validated on a dedicated servo test bench running SINAMICS S120 firmware. Bearing condition is assessed via vibration spectrum analysis (ISO 10816-3 Class II criteria). Motors with integrated holding brakes are tested for static torque retention and release response time. All test data is logged and supplied with the unit on dispatch.