Dc switches - Import export

The electronic temperature switch of BEDIA is fitted with thin-film resistor Pt 1000 in a bridge circuit. This sensor element provides close switch point tolerances and a quick response. Switch point and reset hysteresis may be selected within the admissible operating range when ordering so as to allow the monitoring of both very wide and very close temperature ranges. The switching output is protected from short-circuit and overload. The short-circuit current is limited by the output transistor switching off inthe event of a fault. It will automatically reset as soon as the fault has been remedied. The switch is available with ground-connected, plus-connected or potential-free DC switching output. The switch is open in the event of power failure or disconnection of the power supply, independed of the switching function. It is available both as normally open (NO) or normally closed (NC) switch.

High feeding accuracy, quick cycles and simple operation Servo feeding in compact design with maintenancefree AC servo motor Fits just about any press +/ 0,025 mm feeding accuracy through incremental servo encoder Lightweight rollers with special hard chrome layer Mechanical pilot release Sturdy steel plate bolton design Height adjustment via threaded spindle Catenary rolls and edge guides at machine entrance Stock guides at exit Highperformance control with good functionality; with remote control for setup on 3,5 m cablel 24 V DC proximity switch adjustable piloting lever to be mounted to press pneumatic pilot release

The permanent holding magnet achieve a holding force of up to 3,500 N in the de-energized state and are designed for long holding of magnetic workpieces. When the DC-excited coil is switched on, the permanent magnetic field on the holding surface is neutralized and the workpiece to be held can be removed. The electromagnet holds loads even in the event of a power failure and only needs to be energized briefly to release the workpiece. It is characterized by its energy efficiency and high holding forces. The permanent holding solenoid is available in different sizes with forces between 8 and 3,500 N.

The permanent holding magnets achieve a holding force of up to 35,000 N in the de-energized state and are designed for long holding of magnetic workpieces. When the DC-excited coil is switched on, the permanent magnetic field on the holding surface is neutralized and the workpiece to be held can be removed. The electromagnet holds loads even in the event of a power failure and only needs to be energized briefly to release the workpiece. It is characterized by its energy efficiency and high holding forces. The permanent holding solenoids are available in different sizes with forces between 8 and 3,500 N.

The permanent holding magnets achieve a holding force of up to 35,000 N in the de-energized state and are designed for long holding of magnetic workpieces. When the DC-excited coil is switched on, the permanent magnetic field on the holding surface is neutralized and the workpiece to be held can be removed. The electromagnet holds loads even in the event of a power failure and only needs to be energized briefly to release the workpiece. It is characterized by its energy efficiency and high holding forces. The permanent holding solenoids are available in different sizes with forces between 8 and 3,500 N.

Type: 3, IEC/EN 61496; SIL: 2, IEC 61508; Performance Level (PL): d, EN ISO 13849-1; Scanning angle: 270 °; Number of field pairs, reversible: 1; Number of protective functions: 1 Piece(s); Operating range: 0 ... 3 m; Range, warning field: 0 ... 20 m; Supply voltage: 24 V, DC, -15 ... 15 %; Safety-related switching outputs (OSSDs): 2 Piece(s), Transistor, PNP; Dimension: 140 mm x 149 mm x 140 mm

— AC and DC sensors available — High switching frequencies up to 4000 kHz — Fully encapsulated versions to protection class IP67 — Sturdy metal or plastic enclosures — Temperature range: -25°C up to +70°C — Sensing distances: 2 mm to 8 mm — Cable / connector versions — 10 – 36 V DC or 76-250 V AC — PNP / NPN versions — NO / NC versions — Function indicators — Short circuit-proof versions — Versions with IO-Link

— Versions for flush and non-flush mounting — AC and DC sensors available — High switching frequencies up to 300 kHz — Fully encapsulated versions to protection class IP67 — Sturdy metal and plastic enclosure — Temperature range: -25°C up to +70°C or -40°C up to +100°C — Sensing distances: 10 mm up to 15 mm — Cable / connector versions — 10 – 36 V DC or 20-250 V AC — PNP / NPN or AC versions — NO / NC versions — Function indicators — Short circuit-proof versions — Versions with IO-Link

The rectifier with built-in current sensor for fast turn-off is designed for the operation of electromagnetic devices. It ensures fast turn-on and turn-off. The rectifier with bridge circuit comprises a thyristor and timer. During overexcitation, the rectifier delivers bridge rectified output voltage before changing over to half-wave rectification. On the DC side, the output voltage is enabled by the built-in current sensor which measures the AC current of the connected motor. If the motor is stopped, the rectifier turns off on the DC side as soon as the current falls below the turn-off threshold. The turn-off voltage generated by the inductive load is limited. The rectifier is suitable for connection in parallel with AC motors. The current sensor must be wired into the motor current path in such a way that the current flow created when the motor operates in generator mode will not pass through the sensor. This is crucial to avoid delayed or impaired DC side switching.