Power Cable 6FX7002-5EA31-1AK0 6FX7 002-5EA31-1AK0 6FX7OO2-5EA31-1AKO

6FX7002-5EA31-1AK0 | Siemens MOTION-CONNECT 700 Power Cable — 9m / 1FN Linear Motor to 611 Drive / 4×2.5+4×0.5mm² / RAL 2003 Orange / 600/1000V

Power Cable for Siemens 1FN Linear Motors — A Dedicated Cable Family

The 6FX7002-5EA31-1AK0 belongs to Siemens' MOTION-CONNECT 700 cable series — a cable family specifically engineered for connecting 1FN series linear servo motors to SIMODRIVE 611 drive systems. The 6FX7002 designation distinguishes this cable from the rotary servo motor cable families (6FX5002, 6FX8002) — different motor technology, different cable requirements, same MOTION-CONNECT quality framework.

The 1FN series are Siemens' linear synchronous motors (SIMOTICS FN) — ironcore linear motors for high-force, precision linear axis drives in advanced machine tools. Unlike rotary servo motors that use a rotating shaft, 1FN linear motors produce thrust directly from electromagnetic force between a primary part (forcer) and a secondary part (platen/reaction rail), enabling frictionless direct-drive linear motion.

Key Specifications

Bare End Flying Leads at Drive End

The 6FX7002-5EA31-1AK0 terminates in bare end flying leads at the drive side — rather than a pre-fitted connector:

Installation flexibility: SIMODRIVE 611 drive modules use screw terminal or plug connection blocks for motor cable termination, with terminal configurations that vary between 611 module types and frame sizes. Bare ends allow the installer to dress the cable termination to the specific terminal arrangement of the installed 611 drive module.

Field preparation: The flying lead ends are stripped and tinned (or ferrule-terminated) during installation — standard industrial cable termination practice for drive cabinet wiring.

Applications

CNC high-speed machining centres: 1FN linear motor axes in high-speed vertical and horizontal machining centres — SIMODRIVE 611 drives powering 1FN primary parts on linear guideways for X, Y, or other axis direct-drive motion.

Precision grinding machines: Linear motor-driven grinding wheel head axes and workpiece traversing axes on precision cylindrical and surface grinders — where the frictionless direct drive of the 1FN motor eliminates stick-slip and improves surface finish quality.

High-precision CNC coordinate measuring: Linear motor-driven CMM probe axes where 1FN motors provide the smooth, vibration-free motion required for accurate dimensional measurement.

Laser cutting and processing: CNC laser cutting head traversing systems using 1FN linear drives and SIMODRIVE 611 for high-speed, precise positioning of the cutting head.

High-speed EDM: Wire EDM and die-sinking EDM machines with linear motor axis drives for high-bandwidth position control of the electrode or wire guide.

FAQ

Q1: What is the function of the 4×0.5mm² auxiliary conductors in 6FX7002-5EA31-1AK0?

The four 0.5mm² auxiliary conductors in the 1FN power cable serve the motor's integrated auxiliary devices — typically the motor temperature sensor (1 or 2 wires for NTC/PTC thermistor) and Hall-effect sensors or other commutation position feedback elements built into the 1FN primary part. These are low-current signal circuits that must be routed alongside the power cable to the same motor connector. Combining them with the power conductors in the 6FX7002 cable eliminates a separate auxiliary cable.

Q2: Why does the 1FN power cable use a different cable family (6FX7002) from rotary motor cables (6FX5002/6FX8002)?

1FN linear motors operate differently from rotary servo motors in ways that affect cable requirements: the primary part moves linearly rather than rotating, the cable must flex with the moving primary part, the motor housing geometry differs, and the thermal and mechanical environment adjacent to the linear motor rail differs from that near a rotary motor body. The 6FX7002 MOTION-CONNECT 700 series is engineered specifically for these 1FN operating conditions — connector interface (M40 size 1.5 for 1FN), outer sheath colour (RAL 2003 orange for visual identification), and cable track flexibility ratings are all tailored to the 1FN installation.

Q3: Is 6FX7002-5EA31-1AK0 compatible with SINAMICS S120 or only SIMODRIVE 611?

The 6FX7002-5EA31 cable is specifically designated "1FN to 611" — the drive-end bare leads are dressed for SIMODRIVE 611 terminal blocks. For 1FN motors connected to SINAMICS S120 drive systems, a different cable type from the 6FX8002 or equivalent SINAMICS-compatible series is required. Confirm from the specific drive system's documentation which cable specification applies.

Q4: How does the 9m cable length affect the SIMODRIVE 611 linear motor axis design?

Cable length affects the cable's capacitance (total capacitance across 9m), resistance (voltage drop under rated current), and the weight and stiffness of the moving cable section in the cable track. All are within normal operating ranges for a 9m 6FX7002-5EA31 cable. For very long axis travels where cable track routing adds significant length, Siemens provides longer cable variants — and for the longest axes, an extension cable (6FX7002-5EB series) is available to extend the base cable.