SIGNAL CABLE 6FX8002-2CF02-1EA0 6FX8 002-2CF02-1EA0 6FX8OO2-2CFO2-1EAO

6FX8002-2CF02-1EA0 | Siemens Resolver Signal Cable — 40m / M23 Full Thread / RAL 6018 Green PUR / SMC10 Sensor Module / MOTION-CONNECT 800PLUS

Resolver Feedback Cable for SINAMICS SMC10 at 40m

The 6FX8002-2CF02-1EA0 is a 40-metre pre-assembled signal cable connecting the SINAMICS S120 SMC10 Sensor Module to the resolver feedback device in servo motor applications using resolver position sensing. The SMC10 is a SINAMICS S120 module that provides the excitation voltage for the resolver and processes the resolver's sine/cosine output signals back to the drive's position feedback system — this cable is the physical signal link between the SMC10 and the motor resolver.

At 40m, the 6FX8002-2CF02-1EA0 serves servo axis installations where the SINAMICS drive cabinet is located at substantial distance from the motor — the longest standard cable run in the 6FX8002-2CF02 series.

Key Specifications

MOTION-CONNECT 800PLUS — Enhanced Dynamic Line

The "PLUS" designation in 6FX8002 identifies enhanced performance within the Dynamic Line family:

Higher oil resistance: 800PLUS cables have enhanced resistance to cutting oils and hydraulic fluids compared to standard 800-series — tested to the higher chemical exposure requirements of machine tool environments.

Extended cable track traversing distance: 800PLUS cables are tested for cable track traversing distances up to 50 metres — a longer supported travel range than the standard 800 series. For the large machine axes where a 40m cable is required, the extended traversing distance capability may be directly relevant.

Applications

SINAMICS S120 resolver axis drives: All SINAMICS S120 installations using the SMC10 Sensor Module for resolver position feedback — machining centres, turning centres, and general servo drives where a resolver is the motor feedback device.

Long-travel CNC axis drives: Gantry machining centres, large-format milling machines, and floor-type boring mills where the 40m cable accommodates the physical separation between drive cabinet and motor.

CNC machine tool retrofits: Replacement or new resolver feedback cables for refurbished or upgraded machine tools using SINAMICS S120 drives — the 40m length covers the majority of large machine installation requirements.

Industrial handling and automation: SINAMICS S120-based automation systems with resolver feedback motors where 40m cable track-routed signal cables are required.

FAQ

Q1: Why does the resolver cable use twisted pairs while some other signal cables do not?

Resolver signals are low-level analogue voltages — the sine and cosine signals may be in the range of millivolts to a few volts depending on the shaft angle. Twisted pair construction for each channel (3×2×0.14mm²) provides differential signal transmission — noise induced on one wire of the pair affects both wires equally, and the differential receiver at the SMC10 subtracts this common-mode noise, leaving only the true signal. This common-mode rejection is essential for reliable resolver feedback over 40m in the electrically noisy CNC drive environment.

Q2: Can 6FX8002-2CF02-1EA0 be extended if 40m is insufficient?

An extension cable (6FX8002-2CF04 series) is available for extending the base 6FX8002-2CF02 cable — specifically designed for this purpose with compatible connectors and matching electrical characteristics. Field-joining resolver signal cables by splicing conductors is not acceptable — it introduces impedance discontinuities and noise entry points that degrade the analogue resolver signals. If a longer total run is required, use the SMC10 specification maximum cable length as the design limit.

Q3: Why is the voltage rating 30V for a resolver cable?

30V is the working voltage of the signal conductors in the resolver cable — the excitation and signal voltages in the resolver circuit are low-voltage analogue signals well below this level. The 30V rating confirms the cable's insulation is qualified for the SINAMICS SMC10 resolver circuit voltage levels including any transients. This is not a mains voltage cable — the 30V rating reflects the measurement circuit's signal levels.

Q4: What does the DESINA designation mean for 6FX8002-2CF02-1EA0?

DESINA (Decentralised Installation for Automation) is a Siemens-led standardisation framework defining connector types, colour codes, cable construction, and interface pin assignments for servo drive cables. The DESINA designation confirms that the 6FX8002-2CF02-1EA0 complies with these standards — including the RAL 6018 green colour for resolver cables and the M23 full-thread connector interface. DESINA compliance ensures consistent, interchangeable cable identification and connector interfaces across SINAMICS drive generations.