(STW) SENSOR-TECHNIK WIEDEMANN GMBH

The Pressure Switch F01 fulfils the high requirements of the EN13849-1 Machinery Directive. The F01 can be used for systems with Performance Level PL d and for safety-critical applications. The F01 has an E1 approval. The F01 is available for pressure ranges from 10 to 1200 bar and has two switching outputs which switch inverted to each other. The F01 is also available with one switching and one analog output. The current output is read back by the F01 to ensure the output signal is emitted correctly. To be able to use the F01 in many applications, users can select different pressure connections. The electrical contact takes place via a 5-pole M12 connector. Through the calibration of the transmitter via temperature, a total accuracy of 1 % FS can be achieved within a range of 0...80 °C. The maximum media temperature totals +125 °C. The stainless steel parts coming into contact with media guarantee maximum media compatibility in combination with the welded thin-film measurement cell.

The ESX-4CS-GW is the first control unit of the fourth generation. The new platform is in turn based on the current AURIX family by Infineon. This AURIX family contains multicore and single core processors. The ESX-4CS-GW (C = Compact, S = Small, GW = Gateway) is equipped with a multicore processor with four internal processors. Three of these cores are available for the creation of your application. The fourth core serves as the lock step core for safety-oriented applications. Furthermore, the processor is equipped with the following internal memories: 8 MB Flash, 2 MB RAM and 32 kB EEPROM. An external 16 MB flash memory is also available. As the device was designed as a central gateway module, six CAN interfaces are available in addition to the five Ethernet interfaces, four of which represent an Ethernet switch for mobile applications. Furthermore, the device can support CAN-FD. The number of I/Os (12 x In, 6 x Out) has been adapted to the concept of a gateway module.

The M01 series has been especially designed for applications in adverse ambient conditions in the same way value is placed on high resistance to aggressive media. Furthermore, the modular principle permits many combinations of pressure connection, pressure range, output signal and connector, so that the right sensor can be found for most applications. For pressure ranges from 10 to 2000 bar, which are frequently required for use on mobile machines, welded stainless steel measurement cells are used which are suitable for media temperatures from −40 to +150 °C. Depending on the type of measurement cell and the material coming into contact with the media, the M01 is resistant to aggressive/non-aggressive gases and liquids. On request, versions in 316L design for use in hydrogen pressure measurements are available. In addition to CE and UL certificates, every M01 product with a 1.4542 stainless steel measurement cell possesses an E1 approval verifying its suitability for use in vehicles.

The pressure switch P01 has been designed especially for use in mobile machines. The EMC characteristics as well as the impact and vibration resistances have been designed for this field of application. This facilitates their use in adverse ambient conditions such as can be found in mobile hydraulics. The integrated electronic switches (NPN or PNP) can be preconfigured ex-works. The P01 is available for pressure ranges from 0...10 bar to 0...1200 bar, whereby a switching accuracy of 1 % of the measurement range end value can be achieved. The maximum permitted media temperature totals 150 ºC; the ambient temperature totals 125 ºC. The parts coming into contact with media have been produced from stainless steel (1.4548) and guarantee, in combination with the welded thin-film measurement cell, maximum media compatibility. Optionally, a damping device can be integrated into the media access.

The ESX-3CS is a compact, robust and efficient control unit. In addition to the ESX-3CM, an ESX-3CS (C = Compact, S = Small) rounds off the third generation of ESX control units. The “C” stands for “Compact” and indicates that all pins are fixed assigned prior to the hardware definition. The functions of these pins can be defined in more detail using software. Both control units are also suitable for safety-oriented applications up to Performance Level PL d or Safety Integrity Level SIL 2, and are based on a common architectural concept: The robust aluminum die cast housing with automotive plug-in connectors contains a fast 32-bit microcontroller with four MB Flash and eight MB SRAM, up to two CAN interfaces, one serial interface, Ethernet, LIN and two LEDs.

The F02 has been designed for application in systems which require a pressure transmitter with a Performance Level PL d or a Safety Integrity Level of SIL 2. It has a thin-film measurement cell made from stainless steel which is welded together with the pressure sensor and thus guarantees high media compatibility. It is available within pressures from 10 to 1200 bar. The output signal is made available at two outputs in parallel, whereby the second output represents an inverted signal. Users can select between a ratiometric and an 4-20-mA output in three-wire technology. The permitted media temperature range extends from -40…+125 °C. The total accuracy in the compensated range of 0…+80 °C lies at <= 1 % FS. The possible flexibility during integration into an existing machine is ensured through the provision of a multitude of available pressure connections as well as the small construction. The electrical contact takes place via a 5-pole M12 connector. The F02 also has E1 approval.

The ESX-3CM is a compact, robust and efficient control unit. In addition to the ESX-3CS, an ESX-3CM (C = Compact, M=Medium) rounds off the third generation of ESX control units. The “C” stands for “Compact” and indicates that all pins are fixed assigned prior to the hardware definition. The functions of these pins can be defined in more detail using software. Both control units are also suitable for safety-oriented applications up to Performance Level PL d or Safety Integrity Level SIL 2, and are based on a common architectural concept: The robust aluminum die cast housing with automotive plug-in connectors contains a fast 32-bit microcontroller with four MB Flash and eight MB SRAM, up to four CAN interfaces, one serial interface and several LEDs.

The ESX-3XM is a robust and efficient control unit. In addition to the ESX-3XM ((X = Expandable, M = Medium)), an ESX-3XL (X = Expandable, L = Large) is also available, which approximately accords with a double ESX-3XM with regard to the construction size and the number of inputs/outputs. Both control units are suitable for safety-oriented applications up to Performance Level PL d or Safety Integrity Level SIL 2, and are based on a common architectural concept: The robust aluminum die cast housing with automotive plug-in connectors contains a fast 32-bit microcontroller with six MB Flash and four MB SRAM, four CAN interfaces, one serial interface, one buzzer and several LEDs.

In addition to the ESX-3XL (L for Large), an ESX-3XM (M for Medium) is also available, which accords approximately with half an ESX-3XL with regard to the construction size and the number of inputs/outputs.Both control units are suitable for safety-oriented applications up to Performance Level PL d or Safety Integrity Level SIL 2, and are based on a common architectural concept: The robust aluminum die cast housing with automotive plug-in connectors contains a fast 32-bit microcontroller with six MB Flash and four MB SRAM, four CAN interfaces, one serial interface, one buzzer and several LEDs.

With the ESX-MBC, we present a new CAN-J1939 module especially for the agricultural and construction machine sector, to control electric motors and actuators in a performance range of up to 200 W. It provides four fast PWM half bridges (each 10 A) with current measurement and two further digital power outputs (each 4 A). Of these, two half bridges respectively, which can be combined to form one motor full bridge, and one digital output are supplied via a safety relay (max. 15 A per safety relay). The module also possesses four multifunction inputs, one module identification output, one digital output and one fixed voltage output for sensor supply. All analog signals are processed with a 12-bit resolution.