When replacing FSS58I-F2AK2A3BN-0013, the EncoderWorks compatible replacement approach should first control Inox housing requirements, K2 cable-output bit mapping, binary parallel data stability, and Ø12 mm recessed hollow-shaft fit. This model is not the same risk profile as the AD connector versions. The cable type removes plug-pin matching from the front of the job, but it makes conductor identification, shield handling, LATCH timing, and PRESET protection more important.
The FSS58I-F2AK2A3BN-0013 is a singleturn absolute encoder with fast parallel push-pull output, 13-bit resolution, binary code, Inox stainless-steel housing, F2A Ø12 mm recessed hollow shaft, K2 cable connection, axial exit direction, and V/R, LATCH, PRESET inputs. The FSS58 series uses direct code-disc readout for rapid data transfer and supports code change frequency up to 400 kHz, with short-circuit-protected push-pull parallel outputs.


The first failure boundary is binary data stability. Binary output is efficient, but it is less forgiving than Gray code during transitions because several bits can change at the same time. If the controller samples the data word while the shaft position is changing, one mixed read can become a wrong angle. That is why LATCH timing is not optional on many binary parallel systems.
This replacement fails when all 13 data conductors are active, but the controller reads unstable position values because the binary word is sampled without the expected LATCH control or with shifted bit order. The encoder is producing data, but the cabinet is not reading the same stable word as the original machine.
The second boundary is K2 cable identification. The FSS58 cable version uses a Ø9 mm cable with paired conductors, while the data bits and control inputs must still be assigned by function. Data bit 1 through Data bit 13, V/R, LATCH, PRESET, Ub, and GND should not be copied only by color from an old installation. Previous repairs, junction boxes, or cabinet rewiring can easily change the apparent logic. The FSS58 documentation defines the data outputs and the V/R, LATCH, and PRESET inputs as separate functions.
V/R and PRESET need deliberate handling. V/R changes the counting direction, while PRESET sets the output word to zero when active. A floating or miswired PRESET line can create a false zero point. A wrong V/R state can make the axis count in the opposite direction even though every data bit is electrically healthy.
Mechanically, the Ø12 mm recessed hollow shaft should sit cleanly on the application shaft. The torque rest holds the housing and must not pull the encoder into alignment. Inox housing helps in wet, corrosive, or washdown environments, but it does not protect the bearing system from shaft eccentricity or torque-rest preload.
The replacement decision should first confirm Inox housing requirement, F2A Ø12 mm shaft fit, torque-rest freedom, K2 cable conductor mapping, 13-bit binary bit order, V/R direction logic, LATCH pulse timing, PRESET behavior, supply voltage, shielding, and controller input thresholds. EncoderWorks treats FSS58I-F2AK2A3BN-0013 as an industrial encoder custom compatible solution where binary read timing and cable mapping decide field reliability.
Typical production lead time: 15 working days.
Key Data
| Item | Data |
|---|---|
| Model | FSS58I-F2AK2A3BN-0013 |
| Encoder type | Singleturn absolute encoder |
| Interface | Fast parallel push-pull |
| Housing | Ø58 mm Inox stainless-steel housing |
| Shaft type | Recessed hollow shaft |
| Shaft size | F2A, Ø12 mm x 30 mm |
| Connection | K2 Ø9 mm cable |
| Exit direction | Axial |
| Output code | Binary |
| Resolution | 13-bit singleturn / 8192 steps |
| Operating voltage | 10–30 VDC |
| Code change frequency | Up to 400 kHz |
| Inputs | V/R, LATCH, PRESET |
| Main engineering anchor | Inox cable output and binary parallel data stability |
| Main failure boundary | Wrong cable mapping, unstable binary read, PRESET error, torque-rest preload |

