FEN-01
Reference · 68679273
Configuration note: Confirm the exact installed configuration before replacement or migration.
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+86 18020776786TTL encoder interface · 68679273
ABB FEN-01 68679273 is a TTL encoder interface for compatible ABB drive systems. It accepts RS-422/485 differential TTL encoder signals on channels A, B and Z and has a maximum input signal frequency of 500 kHz. The official manual specifies selectable 5.5 V DC or 24 V DC encoder supply arrangements, depending on the connection used, together with a combined encoder-supply power limit of 3.6 W. The module is used where encoder feedback must be read by the drive, but correct selection depends on the exact installed encoder technology, supply requirement, cable arrangement, pulse count and compatible drive configuration.
The FEN-01 documentation specifies an encoder speed range from -32768 to 32767 rpm, 0.04 rpm speed resolution and 24-bit position-related values. It also provides TTL encoder emulation with channels A, B and Z, a reference mark, RS-422/485 differential output and a maximum emulation signal frequency of 500 kHz. Permitted cable length depends on the encoder voltage and supply-cable arrangement; the manual gives different values for 5 V, 10 to 30 V and parallel supply-cable installations. Verify the encoder label, output type, pulse count, wiring, isolation and installed drive setup before replacement or commissioning.
| Manufacturer | ABB |
|---|---|
| Model / supplied reference | FEN-01 / 68679273 |
| Product type | TTL encoder interface |
| TTL encoder input | RS-422/485 differential |
| Input channels | CH A, CH B and CH Z |
| Maximum signal frequency | 500 kHz |
| Encoder supply options | 5.5 V DC or 24 V DC, depending on the connection |
| Combined encoder supply power | 3.6 W maximum for 5.5 V and 24 V supplies |
| Encoder cable length | 30 m with 5 V encoder; 60 m with parallel 0.5 mm² supply cables; 100 m with 10 to 30 V TTL incremental encoder |
| Speed range | -32768 to 32767 rpm |
| Speed resolution | 0.04 rpm, 24 bits |
| Position resolution | 16 M/rev, 24 bits |
| Position accuracy | 4 × pulse count/rev |
| Input isolation | Isolated together with digital inputs |
| TTL encoder emulation | 1 to 65535 pulses/rev with reference mark |
| Emulation channels | CH A, CH B and CH Z |
| Emulation signal | RS-422/485 differential, 500 kHz maximum |
| Maximum emulation cable length | 100 m |
| Emulation speed range | -32768 to 32767 rpm |
| Emulation position resolution | 4 × pulse count/rev |
| Emulation isolation | Isolated together with encoder input |
Confirm the complete installed configuration and applicable ABB documentation before replacement or migration.
Check the product nameplate for the FEN-01 model, supplied reference 68679273, hardware revision and fitted interface details. Compare these with the installed equipment before ordering.
ABB documentation identifies FEN-01 as a TTL encoder interface. Confirm the exact installed configuration before applying it in a drive or control system.
The applicable ABB documentation identifies: TTL encoder interface; RS-422/485 differential TTL encoder input; 500 kHz; 5.5 V DC or , depending on the connection; -32768 to 32767 rpm. Final suitability depends on the exact installed version and configuration.
Do not assume interchangeability from a similar model. Check the complete nameplate, drive or control-unit version, interfaces, wiring and application before replacement.
Use FEN-01 only in an ABB drive or control configuration supported by the applicable ABB documentation and the installed equipment configuration.
Follow the ABB manual for the exact version. Isolate power and ensure that mounting, connectors, wiring, shielding and parameter settings are checked by qualified personnel.
The fixed procurement-status panel is retained from the approved template. Provide quantity and a clear nameplate photo so the offered configuration and dispatch details can be confirmed.
The fixed procurement-status panel is retained from the approved template. The quotation will confirm the offered unit condition and applicable warranty terms.
The unit will be checked and protected against static electricity, moisture and impact. Packaging, courier and dispatch details will be confirmed for the order destination.
Send the model, complete part number, quantity, destination and nameplate photo. We will verify identification details before confirming availability and lead time.
Technical information is based on ABB FEN-01 TTL Encoder Interface User’s Manual. Final suitability must be verified against the exact installed unit and official documentation.
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