NEW Siemens 6FX2002-2CA80-1AK0 6FX20022CA801AK0 6FX2OO2-2CA8O-1AKO

6FX2002-2CA80-1AK0 | Siemens Encoder Signal Cable — Pre-Assembled / 12m / Trailing Type / SIMODRIVE Servo Feedback

Encoder Signal Cable for SIMODRIVE Servo Systems

The 6FX2002-2CA80-1AK0 is a pre-assembled encoder signal cable from Siemens' 6FX2002 MOTION-CONNECT range — designed to carry encoder position and speed feedback signals between a SIMODRIVE servo motor's encoder and the drive amplifier's encoder input.

The CA-series within the 6FX2002-2 signal cable family denotes incremental or absolute encoder cable types for specific SIMODRIVE servo motor configurations. The "80" variant identifies the connector arrangement at the motor end — suited to specific motor interface connectors within the SIMODRIVE 1FT6/1FK servo motor range.

Key Product Information

Encoder Feedback — What This Cable Carries

The 6FX2002-2CA80 encoder cable transmits the motor encoder's position and speed signals to the servo drive for closed-loop control:

Incremental signal channels: A and B quadrature signals — the primary position information from which the drive calculates speed and incremental position.

Reference pulse (Z): A once-per-revolution reference pulse used for homing and position reference operations.

Encoder supply: DC supply voltage and return for the encoder electronics within the motor.

These signals are carried on individually twisted and shielded conductor pairs within the overall shielded cable — the cable construction is engineered to reject interference from the motor power conductors and adjacent drive electronics.

Applications

SINUMERIK CNC servo axes: Feed axis and spindle encoder feedback connections in SINUMERIK 810D, 840D, and related CNC machine tools equipped with SIMODRIVE 611 drives and 1FT6/1FK servo motors.

Industrial motion control: SIMODRIVE 611-based positioning systems for industrial automation — gantry systems, transfer machines, and precision positioning equipment.

Machine tool retrofits: Replacement encoder cables in machine tools being refurbished or repaired, where the 12m length covers the majority of servo axis cable run distances.

FAQ

Q1: What encoder fault symptoms indicate 6FX2002-2CA80-1AK0 may need replacement?

Intermittent position jump alarms, speed measurement errors, or encoder system alarms (SIMODRIVE fault F13 or similar encoder error codes) that appear during axis movement but not at rest suggest cable conductor fatigue. Static resistance testing of the cable may not reveal intermittent faults that only manifest under flex. Replace the cable if symptoms correlate with cable track movement.

Q2: Can 6FX2002-2CA80-1AK0 be extended to reach beyond 12m?

Adding intermediate connectors to extend encoder signal cables introduces additional contact resistance, potential noise entry points, and impedance discontinuities in the signal path — all potentially degrading signal quality. If a longer encoder cable is required, order the next longer variant (available in longer lengths within the 6FX2002-2CA80 series) as a complete cable.

Q3: What is the maximum encoder cable length for SIMODRIVE 611 systems?

SIMODRIVE 611 documentation specifies maximum encoder cable lengths based on encoder type and signal frequency. Standard incremental encoders at typical machine tool resolutions permit cable lengths in the range of 25–75m. The 12m 6FX2002-2CA80-1AK0 is well within typical maximum length limits for standard SIMODRIVE applications.

Q4: Is 6FX2002-2CA80-1AK0 compatible with both incremental and absolute encoders?

The CA-series encoder cables within the 6FX2002 range are specified for particular encoder types — incremental or absolute (EnDat, SSI) — based on the connector pin assignment and conductor configuration. Confirm from Siemens' MOTION-CONNECT cable documentation that 6FX2002-2CA80 is specified for the specific encoder type fitted to the motor in question. Different encoder types use different cable variants within the 6FX2002-2CA series.