We developed a custom solution for the GA240.A105102 encoder, intended for applications where 13-bit Gray-code parallel absolute position output must remain stable in compact installations with direct PLC input and limited wiring space. This configuration is based on the GA240 singleturn parallel absolute encoder platform, using a clamping flange, Ø10 mm solid shaft, 10–30 VDC supply, and Gray-code push-pull output via M23 connector interface, making it suitable for structured cabinet wiring rather than free cable routing. It is not a serial encoder. It is a parallel data system where STORE timing, ENABLE control, and connector-level signal integrity determine whether the output remains usable. Typical production lead time: 15 working days.

Custom Solution Photos

GA240.A105102 Gray Parallel Encoder Compact Output-EncoderWorks
GA240.A105102 Gray Parallel Encoder Compact Output-EncoderWorks

Stable operation depends on shaft alignment, flange rigidity, connector stability, and controlled parallel signal handling.

System Limits

  • No STORE signal during readout → data may change during sampling
  • ENABLE not active → output enters high-impedance and appears lost
  • Connector pin mismatch or EMC noise → bit errors in parallel data

The GA240 platform provides 13-bit (8192 steps) optical singleturn output with push-pull drivers and code continuity monitoring. In connector-based installations, the main limitation shifts from cable routing to pin assignment accuracy and connector shielding quality. Even with a mechanically stable encoder, incorrect pin mapping or weak shielding can produce wrong absolute values at the PLC level.

This model uses Gray code, which is more tolerant of transition ambiguity than binary output when all bits are not sampled at exactly the same instant. That improves readout stability in practical parallel systems, but it does not remove the need for correct STORE timing, proper shielding, and stable ENABLE control.

Installation and Wiring Constraints

  • Use rigid clamping flange mounting and maintain shaft alignment
  • Use STORE input to latch position data before reading
  • Keep ENABLE active (Low) for valid output
  • Verify M23 21-pin connector pin assignment before commissioning
  • Define UP/DOWN logic according to real shaft rotation
  • Ensure full shielding and grounding at connector level

Failure boundary:

  • Missing STORE → unstable Gray-code readout
  • ENABLE inactive → no output
  • Wrong pin mapping → incorrect data interpretation
  • Poor connector shielding → intermittent or corrupted data

Replacement and Interface Mapping

  • Suitable for systems requiring 13-bit Gray-code parallel absolute feedback via connector interface
  • Applicable where compact wiring and structured panel integration are required
  • Not suitable where serial communication is expected or parallel timing cannot be controlled
  • Best used in systems with strict control over connector wiring and signal timing

Key Data

  • Model: GA240.A105102
  • Type: Singleturn absolute encoder, parallel
  • Sensing method: Optical
  • Resolution: 13 bit / 8192 steps
  • Code: Gray
  • Output circuit: Push-pull, short-circuit proof
  • Supply voltage: 10–30 VDC
  • Initializing time: typ. 20 ms
  • Accuracy: ±0.025°
  • Shaft: Ø10 mm solid shaft
  • Flange: Clamping flange
  • Connection: M23 connector (21-pin)
  • Max speed: ≤10000 rpm mechanical / ≤6000 rpm electrical
  • Shaft load: ≤20 N axial / ≤40 N radial
  • Protection: IP54 / IP65
  • Operating temperature: -25 to +85 °C
  • Housing: Ø58 mm aluminium

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