Features:
- Eight monitored sensor channels support contact or contactless BERO limit switches.
- Protected 8.5 mA sensor drivers feed field devices over runs up to 500 m.
- Separate OK, actual and simulation data distinguish diagnosis, process state and test operation.
The module is an intelligent BERO interface for AS 220/230, not a general-purpose eight-point contact card.
It powers the field circuit, evaluates paired line conditions and exposes a diagnostic result alongside the live input state.
Use the original wiring diagram to retain sensor polarity, open-level selection and front simulation behavior during commissioning.
Apter Power can support exact-model configuration review and quotation for Siemens 6DS1621-8AA.
Verified resources for Siemens 6DS1621-8AA:
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Machine position sensors can be monitored with additional visibility into open or faulty field wiring.
- Conveyor presence detection can feed both process-state and channel-health information to the TELEPERM controller.
- Maintenance staff can simulate a channel at the module while keeping diagnostic and actual-state data distinguishable.
- Defined two-bit line conditions allow sensor and wiring faults to be distinguished from normal switching states.
- Evaluation of the 00 and 11 line states exposes invalid combinations that indicate an open or faulty sensor circuit.
- Sensor simulation and front indicators support commissioning of proximity circuits without changing the control program.
- The input circuits are designed for two-wire BERO 2RF proximity sensors using the specified monitored line principle.
- The module belongs in AS 220 or AS 230 stations whose rack and connector arrangement supports this BERO interface.
- Non-isolated channel references and the sensor supply scheme must remain consistent across the eight connected circuits.
- Eight BERO sensor channels bring machine-position and presence information into compatible TELEPERM automation stations.
- A 20 to 33 V DC supply must be available at the process interface for the connected two-wire proximity circuits.
- Field cabling may extend to 500 m when conductor selection, shielding and the specified sensor circuit are maintained.