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6DS1621-8AA

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Siemens 6DS1621-8AA is an eight-channel TELEPERM M input module for contact or contactless BERO 2RF limit-switch circuits. It combines protected sensor drivers, line-state diagnostics and front simulation.
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Technical specifications for 6DS1621-8AA

  • Manufacturer:
    Siemens
  • Part Number:
    6DS1621-8AA
  • Product Family:
    Siemens Teleperm
  • Product Type:
    BERO Proximity Input Module
  • Stock:
    1
  • Input channels:
    8 non-isolated BERO 2RF inputs
  • Compatible stations:
    AS 220 and AS 230
  • Supply voltage:
    20 to 33 V DC
  • Channel indication:
    16 LEDs
  • Sensor monitoring:
    00/11 line-state evaluation
  • Sensor simulation:
    Supported
  • L+ current:
    Approximately 130 mA
  • 5 V current:
    Approximately 30 mA
  • Additional current:
    Approximately 60 mA according to operating state
  • Maximum cable length:
    500 m
  • Driver protection:
    Short-circuit-to-ground protection
  • Input device type:
    Contact or contactless BERO limit switches
  • Input data groups:
    OK, actual and simulation data
  • Open-contact level:
    -33 to -20 V or 0 V, selectable
  • Closed-contact level:
    +20 to +33 V
  • Sensor driver current:
    8.5 mA, short-circuit proof
  • Dynamic voltage limit:
    +1.5 kV, 1.2/50 us impulse
  • Board format:
    233.4 x 160 mm
  • Tariff Code:
    8537101190
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Applications Diagnostics Compatibility & Interoperability Integration

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.
Description
6DS1621-8AA interfaces eight BERO proximity or limit-switch channels to compatible AS 220 and AS 230 stations. Each sensor path receives a short-circuit-proof 24 V driver so the module can supervise a defined field circuit rather than merely reading a dry contact.

The electronics evaluate the 00 and 11 line states to separate normal switching information from wiring or sensor faults. Three data groups—OK, actual and simulation—give the control system distinct diagnostic, process and test information for every channel.

This specialized circuit must be replaced with the same BERO interface concept. The sensor wiring, open-contact reference selection, 500 m cable limit, connector pinout and simulation state all need confirmation before the channel is released to the process.
Alternative Names
6DS1621-8AA 6DS1621 8AA 6DS16218AA Siemens 6DS1621-8AA Siemens 6DS1621 8AA 6DS1621-8AA BERO Proximity Input Module Siemens 6DS1621-8AA TELEPERM M 6DS1621-8AA Catalog Number
Technical notes
Connect 6DS1621-8AA only to the documented BERO 2RF circuit; conventional proximity wiring may not reproduce the module's 00/11 diagnostic states or protected sensor-supply behavior.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Why does 6DS1621-8AA expose three data groups per sensor?
OK reports channel health, actual carries the live process state and simulation identifies the test value.
What do 00 and 11 mean in the 6DS1621-8AA diagnostic concept?
They are evaluated dual-contact line conditions used to recognize states that can indicate wiring or sensor faults.
How is a BERO device powered from 6DS1621-8AA?
Each channel uses a short-circuit-proof driver rated about 8.5 mA from the 20–33 V sensor supply.
What sets the field-cable boundary for 6DS1621-8AA?
Maximum sensor cable length is 500 m under the stated installation conditions.
Which check is essential after installing 6DS1621-8AA?
Prove normal, fault and simulation states for every channel before the controller logic is allowed to act on the inputs.
Which BERO circuit details rule out a general-purpose card when ordering 6DS1621-8AA?
Send the exact module label, AS station type, BERO sensor designation, wiring diagram and required quantity.