K7
8 Safe Digital Outputs, Low-Side Switching for d-SC
Main Features
- 8 digital outputs, 24 V, 48 V, 72 V, 96 V, 110 V
- 300 mA per channel, 1200 mA total
- Low-side switch outputs (load to supply voltage)
- Optical isolation from other cards
- Fail-safe board architecture
- Certified to EN 5012x (SIL 2/4), EN 50159, IEC 61508 (SIL 2/3)
- Developed acc. to EN 50129, EN 50128, IEC 61508
- Extensive supervision functions
- EN 50155 fully compliant
- -40 °C to +85 °C
- Conformal coating
Digital Outputs for d-SC
The K7 is a safe digital output card for use in the duagon SAFE CONTROL (d-SC) System. The d-SC platform performs safe train control functions in rolling stock applications like Automated Train Protection (ATP) or CBTC (Communications Based Train Control). It usually consists of a controller system e.g. MH50C and safe remote I/O boxes e.g. KT8. The K7 can be plugged into any of these systems with one card providing 8 safe digital outputs with read-back and testing capabilities.
Safe Communication (EtherCAT and FSoE)
d-SC I/O boards are EtherCAT slave devices connected to the host via a backplane "EBUS" link. On top of EtherCAT a safety layer called FSoE (Fail Safe Over EtherCAT) provides safe real-time Ethernet communication between the host system and the I/O board.
Made for Rail I/O Functions
The K7 can switch voltages from 24 V to 110 V nominal as specified by EN 50155. Typical loads are relay coils digital inputs of other systems or LED indicators. The outputs are low-side switching i.e. the load has to be connected to the high side. The I/O card provides functional safety: it enters the safe state if it detects an error. Front I/O is connected via a 24-pin PCB plug for fast installation thanks to reduced wiring.
Safety-Certified
The K7 is certified to CENELEC standards EN 50128 and EN 50129. The board is developed in a SIL 4 process according to EN 50128 and EN 50129. The systematic capability of the K7 is SIL 3 according to IEC 61508. However to control a SIL 4 function according to EN 50128 and EN 50129 or SIL 3 function according to IEC 61508 the system design must provide a second cut-off path to put the load into a safe state. All d-SC I/O components come with dedicated certification packages from TÜV SÜD reducing the integrator's certification effort and risk and resulting in lower integration costs.
EN 50155 Rolling Stock Compliance
Being usable in all types of different trains optimizes the card's interoperability. It supports operating temperatures of -40 °C to +85 °C according to EN 50155. Standard boards include conformal coating. With full EN 50155 compliance and a long-term availability on the market of 10 years minimum from the start of series production the K7 is a rail-ready component. If required the K7 can also comply to Railways (Wayside) standard EN 50121-4 and Industrial standard EN 61000-4-5 by connecting an external EMC suppressor circuitry.
Safe Software Concept
All d-SC components are supported by certified QNX BSP and driver software. Application software accesses the K7 via the PACY software framework (Process Data Framework for Cyclic Applications). Its API allows the application to control and monitor all features of the K7.
Related Products
- Eight channels
- Output voltage
- 24 V, 48 V, 72 V, 96 V, 110 V nom. (EN 50155)
- Voltage supplied from external source
- Output current
- 300 mA max. per channel
- 1200 mA max. total
- Output type
- Low-side switch outputs (load to supply voltage)
- Digital I/O
- 1x 24-pin PCB plug
- 8x digital output
- Ethernet
- 2x Real-Time Ethernet, ETG.1000 EBUS EtherCAT, backplane
- d-SC FSoE
- Slot ID and chassis ID for unique FSoE address, backplane
- Status LEDs
- Binary channel status, one LED per channel
- I/O error
- FSoE activity
- Real-time Ethernet error
- Real-time Ethernet state indication
- Check for overvoltage, undervoltage, excess temperature
- Watchdog
- Monitor self-test
- Clock monitoring
- Supply voltage
- +12 V (10.8 to 13.2 V)
- Power consumption
- 1.6 W typ.
- 2.5 W max.
- Dimensions
- 100 mm x 100 mm, 4 HP
- Weight
- 196 g (model 06K007-10)
- Cooling concept
- Air-cooled, airflow 0.5 m/s
- Compliance level: The product is tested and qualified on product model level. Compliance varies between different product models.
- Operating temperature: -40 °C to +70 °C (EN 50125-3:2003, class T2, cubicle, with class T2 maximum extended by 5 °C)
- Storage temperature: -40 °C (EN 60068-2-1:2007, Ab) to +85 °C (EN 60068-2-2:2007, Bb)
- Altitude: +3000m max. (EN 50125-3:2003, class AX)
- Humidity: 100 % RH max. (EN 50125-3:2003, shelter N.C.C., class T1/T2/TX) Non-condensing
- Pollution degree: EN 50124-1:2017, class PD3
- Overvoltage category: EN 50124-1:2017, class OV1
- Shock: 11 ms @ 20 m/s² (EN 50125-3:2003, in a switch cabinet 1 m to 3 m from the track)
- Vibration: 2.3 m/s² (EN 50125-3:2003, in a switch cabinet 1 m to 3 m from the track)
- Electrical safety
- EN 50124-1:2017
- EN 62368-1:2014 + AC:2015
- EMC emission
- EN 50121-4:2016
- EN 61000-6-4:2007 + A1:2011
- EN IEC 61000-6-4:2019
- EMC immunity: EN 50121-4:2016
- Fire protection: for compliance to EN 62368-1:2014 + AC:2015 a fire enclosure is required
- Compliance level
- The product is tested and qualified on product model level. Compliance varies between different product models.
- The product is prepared for use in EN 50155 systems. Some parameters are system-dependent and are specified on system level.
- Operating temperature: -40 °C to +70 °C, +85 °C for 10 min (EN 50155:2021, class OT4, ST1)
- Rapid temperature variations: EN 50155:2021, class H1, no requirements
- Storage temperature: -40 °C (EN 50155:2021) to +85 °C (EN 60068-2-2, Bb)
- Altitude: +3000 m max. (EN 50125-1:2014, class AX)
- Pollution degree: EN 50124-1:2017, class PD2
- Overvoltage category: EN 50124-1:2017, class OV1
- Humidity: +55 °C and +25 °C, 100 % RH max. (EN 50155:2021)
- Shock: 30 ms @ 50 m/s² (EN 61373:2010/AC:2017-09, vehicle body, cat. 1, class B)
- Vibration: 10 min @ 2.02 m/s² (functional) and 5 h @ 11.44 m/s² (long-life) (EN 61373:2010/AC:2017-09, vehicle body, cat. 1, class B, double acceleration)
- Electrical safety
- EN 50155:2021
- EN 50153:2014 + A1:2017 + A2:2020
- EN 50124-1:2017
- EN ISO 13732-1:2008
- Fire protection: EN 45545-2:2020, EL9, HL3
- EMC emission: EN 50121-3-2:2016 + A1:2019
- EMC immunity: EN 50121-3-2:2016 + A1:2019
- Protective coatings: EN 50155:2021, class PC2 (Any PCB protected on both sides)
- Useful life: 20 years (EN 50155:2021, class L4)
- 750 952 h @ 40°C according to IEC/TR 62380 (RDF 2000) (model 06K007-10)
- Certifiable to SIL 2 with single channel according to EN 50129
- Certifiable to SIL 4 with dual channel according to EN 50129
- Hazard rate (HR=PFH) for safety functions <= 3E-9 / h (single card configuration)
- SIL 2 according to IEC 61508 with single channel (HFT=0)
- SIL 3 according to IEC 61508 with dual channel (HFT=1)
- SFF > 99% according to IEC 61508
- Board maintains safe state after a failure
- PACY (Process Data Framework for Cyclic Applications)
- QNX
Standard Models
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