Transport with Magnets

Transcription

1 Wagner Magnete GmbH & Co. KG Obere Straße 15 D Heimertingen Phone: +49 (0) Fax: +49 (0) Technology Full of Attraction Transport with Magnets Clamping Plates Clamping Chucks Lifting Magnets Holding Magnets Demagnetizing Units Control Electronics Metal Detectors Magnet Separators Non-Ferrous Separators

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3 Transport with Lifting Magnets Electro Permanent Lifting Magnets Electro Lifting Magnets Permanent Lifting Magnets for the transport of: pipes, shafts plates, slabs thin plates profiles, beams, molded parts other parts For the transport and handling technology, we have the electropermanent and electromagnetic systems in our program for various applications. We deliver from the smallest robot gripper magnet to heavy duty magnets for docks and steel works. They can be equipped with fixed or removable suspension brackets and chains. In addition, we offer complete units such as cross heads with lifting magnets, magnetic systems, backup batteries and control systems.

4 Electro Lifting Magnets The magnetic field is created by the DC-coil in the magnet system, as every current carrying wire is surrounded by a magnetic field. The coil encloses an iron core which is connected with both yoke and arm. By this, north and south pole are generated. Depending on the type, very high holding forces with high magnetic fields can be obtained. Electro magnets hold parts only as long as DC current is supplied to the magnet. After switching off or in case of power failure, the parts fall off. If the lifting magnet is not only used in secured areas, a backup battery and an automatic warning device to signal any power failure are required acc. to EN Types 518, 535 Electro Permanent Lifting Magnets The iron core in electropermanent magnets is replaced by permanent magnetic material. This material can be magnetized by means of a short current pulse from the ambient excitation winding. Here, a permanent magnetic (continuous) holding force is generated which holds the component also without further current supply. Thus, these systems are absolutely safe load handling devices in handling technology with very little power consumption. Even in case of power failure or cable break, the full holding force in maintained. The magnet is switched off by triggering an opposite demagnetizing pulse. To operate the electropermanent lifting magnet, a pole-reversal control unit is required. Types 5180N, 5190N Permanent Lifting Magnets Due to the installed permanent magnet system, the permanent lifting magnets can be used without electric control and complex wiring. In addition the permanent magnet design provides sufficient magnetic force at any time. The magnet system can be easily switched on/off using the control lever. If the magnet is switched on this status is secured by a locking system. Types 0519

5 Lifting capacity of load Lifting Magnets The air gap between magnet pole and workpiece surface, as well as shape, surface quality and type of material of the goods to be transported have substantial effects on the load bearing capacity of the magnet. Special tests have been carried out for the Wagner load lifting magnets during which the pull-off strength (measured according to EN 13155) depending on air gap, material thickness and material type is determined. Air gap effects The distance between pole face of the lifting magnet and the surface of the good to be transported is called air gap. The size of the air gap is decisive for the lifting capacity of the load lifting magnet. The larger the air gap the smaller the lifting capacity of the magnet. Air gaps can be created inter alia by uneven surfaces, coatings, packing material, dirt as well as snow and ice. Holding force [%] ,5 1 1,5 2 2,5 Air gap Effects of the workpiece dimensions The cross section of the transport material through which the electric flux lines flow determine the strength by which the material is stuck to the magnet. The magnetic flux of the lifting magnet requires an appropriate cross section, which is mainly defined by its height (thickness). If length and width of the transport material larger than the dimensions of the lifting magnet, thin materials may sag, and an air gap is created between lifting magnet and load. This reduces the load bearing capacity of the lifting magnet. Excessively long parts must therefore be picked by multiple magnets. To obtain full magnetic force, the magnet has to have full direct contact over the complete pole surface. Only partial contact of the pole surface is not permitted. Effects of the surface quality The load bearing capacity is also reduced if the transport material is either coated, shows signs of rust, scales or dirt, or has any other coating. All this will have the effect of an air gap. The same applies to the surface quality of the magnet. Rough or uneven surfaces will create air gaps that will reduce the load bearing capacity of the magnets. Effects of the material composition The smaller the carbon content in the steel, the higher its magnetizability. Alloyed steel or steel with high carbon content offer poor magnetizability, which means, that the holding force of the magnet is reduced. Magnetizability Material 100% technically pure iron approx. 95% (St 37-2) unalloyed structural steel approx. 80% (St 50-2) unalloyed structural steel approx. 60% (X155CrVMo12-1) cold work tool steel approx. 30% EN-JL (GG) lamellar graphite cast iron Additionally, the magnetization of work pieces is influenced by heat treatment as this changes the physical structure of the material. Hardened work pieces are less effective magnetic flux conductors.

6 Use Special features Electro Lifting Magnet Operation only in secured area or with backup battery (hold period > 10 Min.) Electro Permanent Lifting Magnets Requires only current pulse for clamping and unclamping Types 518, 535 Types 5180N, 5180 Type 5190N Handling systems and robots in secured Crane systems Crane systems and manipulators area Crane systems with backup battery Handling systems and robots Universal handling Variable magnet dimensions High load capacities despite air gap Variable depth effect (sheet-metal transport) Very short cycle times possible Demagnetizing of parts possible Magnet heats up Safe transport without backup battery High load capacities Max. material temperature 60 C Compact dimensions Slender design (for rod-shaped parts) Transport of cylindrical parts on the circumference possible by using pole shoes Max. material temperature 80 C 500 e 08_2017

7 Electro Lifting Magnet Options: Different suspension brackets Transport holes at rear side Special lengths Continuous center pole Pole plate to protect the pole surface in case of rough applications Complete magnet cross bars Rectifier and demagnetizing switch for simple demands Pole-reversal control units used as DC supply and pole reversal units Control units to operate pole-reversal control units and rectifiers Electro Lifting Magnets of type 518 are used in docks, steel works and shipyards. They are used for handling and transport of various steel products. The magnetic field is created by the DC-coil in the magnet system. The coil encloses an iron core which is connected with both yoke and arm. By this, north and south pole are generated. The body of the magnet consists of special steel with high magnetic conductivity. The coil area can be protected using a pole plate (for rough applications). The winding is made of highly insulated copper or aluminum wire, which is tightly encapsulated into the magnet housing, and protected against any vibration or moisture. The electrical connection on the back side of the magnet is covered by a massive steel cover to protect against any damage. The optimized structure of the magnet housing allows high holding forces even with large air gaps. The continuous center pole allows the picking-up of mass parts up to the outermost sections over the complete length of the magnet. Due to the different widths of the magnets with different depth effect, special applications are possible such as single transport or package transport of metal sheets. If the Electro Lifting Magnet is not only used in secured areas, a backup battery and an automatic warning device to signal any power failure are required. This ensures that the transported parts are held safely and emergency measures can be taken. After switching off or in case of power failure, the parts become loose instantly or slightly delayed, depending on the material and weight.

8 Electro Lifting Magnet Type 518 Dimensions and technical data: Type Width b Length a Height c Output [Watt] Pull-offstrength [dan] lifting capacity [dan] at air gap / , / , / , / , / , / , / , / , / , / , / , / , / , / , / , / ,0 measured acc. to EN13155, at air gap = 0.5 mm calculated with double safety for pull-off strength at operating temperature, with regard to air gap specification approx. width magnet / 300 acc. to EN13155 for lifting capacity design Nominal voltage: 110 / 220 Volt DC Protection class: IP 64 rel. operating time: 60 to 100 % Other dimensions available upon request. Power supply: If the lifting magnet is not only used in secured areas, a backup battery and an automatic warning device to signal any power failure are required. This backup battery provides power to the magnet which allows holding the load for at least 10 minutes. We offer magnet control units which include the backup batteries required acc. to EN13155 (not necessary in secured areas).

9 Electro Permanent Lifting Magnet Options: Different suspension brackets (also special designs) Complete magnet cross bars Pole plate to protect the pole surface in case of rough use Special design for high workpiece temperatures Special design for low ambient temperatures Plug-type connectors for supply and control system connection Inching function to ensure one-plate pick-up Electro Permanent Lifting Magnets of type 5180N are used where ferromagnetic parts are to be lifted and transported safely. With their integrated double magnet system high lifting capacities are achieved with very little weight of the magnet. Due to the good depth effect large air gaps can easily be bridged. Therefore, type 5180N is particularly suited for the transport of flat workpieces such as plates, slabs and large machine components. For large or very long workpieces it is possible to use several magnets on one cross bar. Clamping and unclamping of ferromagnetic parts on and from Electro Permanent Lifting Magnets is made by a short current pulse which activates or deactivates the permanent magnet system. This pulse control ensures low energy consumption at very low self-heating. The workpieces are held by the integrated permanent magnet system without further current supply. A high-maintenance battery system as used for electric magnets is therefore not necessary. In case of power failure, the magnet maintains its holding force and the workpieces do not fall off! Our pole reversal control units activate the Electro Permanent Lifting Magnets quickly and reliably. The magnetizing process is monitored at every activation of the magnet. This guarantees optimal operational safety, even in the event of a power failure. Depending on the type, up to 16 holding force levels are available in order to be able, for example, to pick up even very thin parts. The use of multiple demagnetizing programs enables quick and exact demagnetizing. The pole reversal unit can be activated via the PLC or a separate control unit, or by using the keyboard on the lifting magnet.

10 Electro Permanent Lifting Magnet Type 5180N Characteristics: Highest level of safety Magnetic force maintained even in case of power failure Lifting capacity specifications with triple safety acc. to EN13155 to pull-off strength Energy-conscious Power used only for short pulses Dimensions and technical data: Type Width b Length a Height c Weight ca. [kg] Pull-offstrength [dan] lifting capacity [dan] measured acc. to EN13155, at air gap = 0 mm, steel plate thickness: 100 mm calculated with triple safety for pull-off strength with regard to air gap specification approx. width magnet / 300 acc. to EN13155 for lifting capacity design at air gap 5180N-25/ ,8 5180N-25/ ,8 5180N-25/ ,8 5180N-50/ ,5 5180N-50/ ,5 5180N-75/ ,5 5180N-75/ ,5 5180N-75/ ,5 For lifting magnets, type 5180N-25/ and 5180N-50/ the pole plate can be ordered optionally. For lifting magnets, type 5180N-75/ the pole plate is part of the standard scope of delivery, that means the height c = incl. pole plate specified in the table. Nominal voltage as pulse EP360 Volt DC Protection class: IP 64 Other dimensions available upon request. 5180N e 04_2017

11 Electro Permanent Lifting Magnet Options: Different suspension brackets (also special designs) Complete magnet cross bars Pole shoes (prism-shaped or special designs) Handle with buttons Plug-type connectors for supply and control system connection Inching function to ensure one-plate pick-up Different pulse voltages Cycle time > 20s, special types available for shorter cycle times Electro Permanent Lifting Magnets of type 5190N are used where ferromagnetic parts are to be lifted and transported safely. The integrated bipolar double magnet system allows not only high lifting forces at low magnet weight for the transport of flat and cubic parts but also the handling of round parts such as shafts and pipes by using prism-shaped pole shoes. Its slim design also allows the handling of single rod-shaped parts up to the edge of the stack whereby any space between the parts in the stack can be neglected. For large or very long workpieces it is possible to use several magnets on one cross bar. Clamping and unclamping of ferromagnetic parts on and from Electro Permanent Lifting Magnets is made by a short current pulse which activates or deactivates the permanent magnet system. This pulse control ensures low energy consumption at very low self-heating. The workpieces are held by the integrated permanent magnet system without further current supply. A high-maintenance battery system as used for electric magnets is therefore not necessary. In case of power failure, the magnet maintains its holding force and the workpieces do not fall off! Our pole reversal control units activate the Electro Permanent Lifting Magnets quickly and reliably. The magnetizing process is monitored at every activation of the magnet. This guarantees optimal operational safety, even in the event of a power failure. Depending on the type, up to 16 holding force levels are available in order to be able, for example, to pick up even very thin parts. The use of multiple demagnetizing programs enables quick and exact demagnetizing. The pole reversal unit can be activated via the PLC or a separate control unit, or by using the keyboard on the lifting magnet.

12 Electro Permanent Lifting Magnet Type 5190N Characteristics: Highest level of safety Magnetic force maintained even in case of power failure Lifting capacity specifications with triple safety acc. to EN13155 to pull-off strength Energy-conscious Power used only for short pulses Dimensions and technical data: Type Width b Length a Height c Weight ca. [kg] measured acc. to EN13155, at air gap = 0 mm calculated with triple safety for pull-off strength with regard to air gap specification approx. width magnet / 300 acc. to EN13155 for lifting capacity design Nominal voltage as pulse EP210 or EP360 Volt DC Protection class: IP 64 Other dimensions available upon request. Pull-offstrength [dan] lifting capacity [dan] at air gap 5190N-6/ , ,2 5190N-6/ , ,2 5190N-6/ , ,2 5190N-6/ , ,2 5190N-6/ , ,2 5190N-6/ , ,2 5190N-6/ , ,2 5190N-6/ , ,2 5190N-6/ , ,2 5190N-6/ , ,2 5190N-10/ , ,3 5190N-10/ , ,3 5190N-10/ , ,3 5190N-10/ , ,3 5190N-10/ , ,3 5190N-10/ , ,3 5190N-10/ , ,3 5190N-20/ ,5 5190N-20/ ,5 5190N-20/ ,5 5190N-20/ ,5

13 Electro-Holding magnet Electro-holding magnets of type 515 are used for commercial holding of ferromagnetic parts in production and device manufacturing. The magnetic field is created by the DC-coil system in the magnet. The coil embedded in an iron core, north and south pole generates. The magnetic effect only works with continous electric power. The magnetic body is made from special steel with high magnetic conductivity. The coil is made from highly insulated copper wire and is cast in a magnetic housing, fully vibration- and moisture-protected. The electrical connection is offered in various designs according to the customer specifications. The actuation with 24 V DC can occur through our rectifier or on actuation via PLC in full-automatic mode with our pole reversal control unit. Options: Fastening thread at the rear Electrical connection in various designs according to the customer specifications. Rectifier and demagnetisation switch (for simple demands) Pole reversal control units that work as a DC supply and as a polarityreversing unit Control units to operate the pole reversal control units and rectifiers

14 Dimensions and technical data: Type Length a Power [Watt] Adhesive force [N] Electrical connection options: Terminal or cable connection (specify when ordering) Weight [kg] M8 (d = quantity) b c d [Q ty] 515-4/ , / , , / , / , / , / ,0 40, / , / , / , / , Electro-holding magnet Type Design: Nominal voltage: 24 V DC Protection class: - IP 65 with cable connection - IP 00 with terminal Ambient temperature: max. 45 C rel. operating time: 100 % Adhesive force: The adhesive forces specified in the table refer to workpieces with ground surface, a strength of = 10 mm, steel , with 100 % charging of the pole surface, air gap = 0 mm and coil-temperature = 20 C. The adhesive force reduces for workpieces with less thickness or rougher surfaces as well as for increased coil temperature. Different lengths and nominal voltage available on request. M8 (d = quantity) Electro-holding magnet Type Type Length a Power [Watt] Adhesive force [N] Weight [kg] b c d [Q ty] / , / , / , / ,0 50, / , / , / , Design: Nominal voltage: 24 V DC Protection class: IP 64 / 65 as per connection Ambient temperature: max. 45 C rel. operating time: 100 % Adhesive force: The adhesive forces specified in the table refer to workpieces with ground surface, a strength of = 8 mm, steel , with 100 % charging of the pole surface and an air gap = 0 mm. For workpieces with less thickness or rougher surfaces, the adhesive force reduces. Different lengths and nominal voltage available on request.

15 Electro-lifting magnet Electro-lifting magnets of type 535 und 536 can be used for transport and wrapping of steel products as well as for commercial holding of ferromagnetic parts in production and in device manufacturing, where particularly high pull-off-strengths are necessary. The magnetic body is made from special steel with high magnetic conductivity. The coil is made from highly insulated copper wire and is cast in a magnetic housing, fully vibration- and moisture-protected. For fixing the magnets tapped holes are provided at the back. The electrical connection is offered in various designs according to the customer specifications. The DC supply can occur through our rectifier or on actuation via PLC in full-automatic mode with our pole reversal control unit. Options: Fastening thread at the rear Rectifier and demagnetisation switch (for simple demands) Pole reversal control units that work as an adjustable DC supply and as a polarity-reversing unit Control units to operate the pole reversal control units and rectifiers This magnet is also used as a holding magnet, e. g. for fire safety doors. These are kept open in normal operation and can be switched off immediately in case of fire - the fire safety door closes. Here, the design is according to the pull-ofstrengths mentioned in the table. If the electro-lifting magnet is not used only in the protected area, a backup-battery and an automatic warning device is necessary to signal power failure as per EN This ensures that the transported parts are held safely and emergency measures can be taken. After switching off or in case of power failure, the parts become loose instantly or slightly delayed, depending on the material and weight.

16 Dimensions and technical data: Type Ø D H Power [Watt] Weight [kg] Pull-off strength [dan] Lifting capacity [dan] , , , , , , , Electro-lifting magnet Type 535 Type Ø D H Power [Watt] Weight [kg] Pull-off strength [dan] Lifting capacity [dan] ,5 0, ,5 0, , , , , , , , , Electro-lifting magnet Type 536 measured acc. to EN13155, at air gap = 0 mm calculated with 2x safety from the pull-off-strength at operating temperature Nominal voltage: 24 / 110 / 220 V DC Protection class: IP 00 to IP 65 as per connection type rel. operating time: 60 to 100 % Other dimensions available upon request.

17 Control unit The control unit, type 744, is used to control all Wagner electric magnets and electropermanent magnets in connection with the pole-reversal control units. They are available both with and without 6, 8 or 16-step holding force switch. Depending on the version, the control units are used with clamping magnets, holding magnets and lifting magnets. Standard version: Illuminated pushbutton in stainless steel mounting Aluminum housing with slip-resistant rear side Housing dimensions (LxWxH): 180x103x37 mm Protection class IP 65 5 m connecting cable Options: Additional illuminated pushbutton and selector switch for special functions Connecting cable length: 10 / 15 / 20 m Mounting base Wall fastening Swivelable mounting Operating elements: Clamp When actuating the button, the workpiece is clamped and can be machined. As long as the magnet is switched on, the button glows green. The holding force of the magnet corresponds to the holding force level selected with the selector switch. Pole reversal When actuating the button, pole reversal is started to demagnetize the workpiece. As long as the polarity reversal process is ongoing, the button glows green. As soon as the display has gone off, the workpiece can be removed from the magnet. Selector switch clamping force Pre-selection of the holding force via coding switch. The switch can be supplied in 6, 8 or 16 levels (largest number for holding force level = 100% holding force).

18 Design examples: To control clamping and holding magnets 1 illuminated pushbutton for Clamping the magnet 1 illuminated pushbutton for Magnet reversal 1 coding switch with 16 steps for regulating the holding force Indicator lamp for indicating error and warning messages Housing dimensions (LxWxH in mm): 180x103x37 For electronic pole-reversal control unit Aluminum housing with protection class IP 65 To control loading lifting magnets 1 illuminated pushbutton for Clamping the magnet 1 illuminated pushbutton for Clamping with reduced holding force (< 100 %) 1 illuminated pushbutton for Magnet reversal (double actuation EN13155) 1 coding switch with 6 steps for regulating the holding force Indicator lamp for indicating error and warning messages Housing dimensions (LxWxH in mm): 180x103x37 For electronic pole-reversal control unit Aluminum housing with protection class IP65 Our control unit 744 can be expanded in a modular manner Fastening Wall fastening Swivelable mounting 744 e 01_2018 Mounting base

19 Electronic Pole Reversal Control Unit procedures, the repeatability of which is also drastically improved thanks to the precision regulation. Of course, the scope also includes balancing out of any voltage fluctuations from the power supply source. In devices for standard applications, the basic configuration is implemented during the final inspection by the manufacturer. The basic confi guration determines the basic properties of the reverse pole control unit used to control magnets. A difference is established between magnet types (electro, electropermanent and neodymum magnets) and their individual nominal voltages. Another basic setting is the number of adhesive force levels selectable via the adhesive force inputs. Using the easily adapted calibration process, the device is adapted to the respective magnets. Current control is established in accordance with the configured adhesive force level and the nominal voltage. There are 15 different program cycles available to demagnetise electro and electropermanent magnets respectively. The type 754 pole-reversal control units are compact and very versatile control units usable for magnets of all kinds. By reversing the polarity, magnetism in magnets and in the workpiece is eliminated and demagnetised parts can then easily be removed from the magnets. Within their respectively defi ned power range, they can be configured and used by setting suitable parameters for practically all types of magnets. Applying a modern digital signal processor successfully facilitated the transfer from conventional voltage control to very precise current control. The current control stands out for the switching dynamics stretching new physical limits and the resulting super-fast clamping and polarity reversal For special applications, the reverse pole control unit can be additionally configured or aligned via an optionally available monitoring program.

20 Technical data: Mains voltage: 3 x 400 V AC (+/-10%) Mains frequency: 50 / 60 Hz Protection system: IP 20 Operating mode: Continuous operation perm.temperature range: 0 C to 40 C EMC: EN / EN For the connection of the magnet use a shielded cable Available clamping force curves: 6, 8 or 16 steps. Installation height: 1000 mnn When operating at great heights, the output power is limited. Input signals: Clamping (SPA IN) Pole reversal (UMP IN) switch off without demagnetizing process (OFF IN) acknowledge fault message (QUIT IN) 4 inputs for selecting the clamping force levels 4 inputs as special options RS 232 interface for PC communication Program selection Use the coding switch on the front panel to select up to 16 pole reversal programs. Output signals: Magnet clamped (SPA OUT) Pole reversal magnet (UMP OUT) Fault (Error or O.K.) All output signals are available as potential-free contacts and 24V signals. Short-circuit behaviour: The reverse pole control unit is shortcircuit-proof. In the event of a short circuit, it is internally disconnected within 10µsec. Connection values for various output voltages: Type nom. output voltage [V DC] nom. output current [A DC] Dimensions WxHxD Weight Use for [kg] 754-EL360/ x330x275 11,6 Electro magnets (continuous operation) 754-EL220/ x330x275 11,6 Electro magnets (continuous operation) 754-EL110/ x330x275 11,6 Electro magnets (continuous operation) 754-EP360/ x330x275 9,5 Elektro-permanent magnets (pulsed operation) 754-EP220/ x330x275 9,5 Elektro-permanent magnets (pulsed operation) 754-EL360/ x330x275 12,4 Electro magnets (continuous operation) 754-EL220/ x330x275 12,4 Electro magnets (continuous operation) 754-EL110/ x330x275 12,4 Electro magnets (continuous operation) 754-EP360/ x330x275 9,5 Elektro-permanent magnets (pulsed operation) 754-EP210/ x330x275 9,5 Elektro-permanent magnets (pulsed operation) 754-EP360/ x418x340 15,1 Elektro-permanent magnets (pulsed operation) 754-EP210/ x418x340 15,1 Elektro-permanent magnets (pulsed operation) For compliance with the EMC directives the use of a line reactor is necessary! For line lengths over 20 m between pole reversal control unit and magnet it is necessary to use an output choke. Accessories: Control unit For manual control of the pole-reversal control unit, different control units of type 744 are available. They are equipped with a coding switch to adjust the holding force and illuminated keys to clamp and unclamp the magnet. Keys and coding switch are also available as installation components. Monitor program With the additional USG Monitor software, the configuration options for the pole-reversal control unit are extended considerable. The following options are available, for example: selecting the 6-step, 8-step, and 16-step holding force curve and changing the freely-programmable holding force curve changing the pole reversal programs activating special options 754 e 08_2017

21 Electronic Pole Reversal Control Unit procedures, the repeatability of which is also drastically improved thanks to the precision regulation. Of course, the scope also includes balancing out of any voltage fluctuations from the power supply source. In devices for standard applications, the basic configuration is implemented during the final inspection by the manufacturer. The basic confi guration determines the basic properties of the reverse pole control unit used to control magnets. A difference is established between magnet types (electro, electropermanent and neodymum magnets) and their individual nominal voltages. Another basic setting is the number of adhesive force levels selectable via the adhesive force inputs. Using the easily adapted calibration process, the device is adapted to the respective magnets. Current control is established in accordance with the configured adhesive force level and the nominal voltage. There are 15 different program cycles available to demagnetise electro and electropermanent magnets respectively. The type 755 pole-reversal control units are compact and very versatile control units usable for magnets of all kinds. By reversing the polarity, magnetism in magnets and in the workpiece is eliminated and demagnetised parts can then easily be removed from the magnets. Within their respectively defi ned power range, they can be configured and used by setting suitable parameters for practically all types of magnets. Applying a modern digital signal processor successfully facilitated the transfer from conventional voltage control to very precise current control. The current control stands out for the switching dynamics stretching new physical limits and the resulting super-fast clamping and polarity reversal For special applications, the reverse pole control unit can be additionally configured or aligned via an optionally available monitoring program.

22 Technical data: Mains voltage: 230 V AC (+/-10%) Mains frequency: 50 / 60 Hz Protection system: IP 20 Operating mode: Continuous operation perm.temperature range: 0 C to 40 C EMC: EN / EN For the connection of the magnet use a shielded cable Available clamping force curves: 6, 8 or 16 steps. Installation height: 1000 mnn When operating at great heights, the output power is limited. Input signals: Clamping (SPA IN) Pole reversal (UMP IN) switch off without demagnetizing process (OFF/QUIT) acknowledge fault message (OFF/QUIT) 4 inputs for selecting the clamping force levels RS 232 interface for PC communication Program selection Use the coding switch on the front panel to select up to 16 pole reversal programs. Output signals: Magnet clamped (SPA OUT) Pole reversal magnet (UMP OUT) Fault (Error or O.K.) All output signals are available as potential-free contacts and 24V signals. Short-circuit behaviour: The reverse pole control unit is shortcircuit-proof. In the event of a short circuit, it is internally disconnected within 10µsec. Connection values for various output voltages: Type nom. output voltage [V DC] nom. output current [A DC] Dimensions WxHxD Weight Use for [kg] 755-EL24/ ,5x202,5x136 2,8 Electro magnets (continuous operation) 755-EL110/ ,5x202,5x136 2,8 Electro magnets (continuous operation) 755-EL220/ ,5x202,5x136 2,8 Electro magnets (continuous operation) 755-EP210/ EP ,5x202,5x136 2,8 Elektro-permanent magnets (pulsed operation) For compliance with the EMC directives the use of a line reactor is necessary! For line lengths over 20 m between pole reversal control unit and magnet it is necessary to use an output choke. Accessories: Control unit For manual control of the pole-reversal control unit, different control units of type 744 are available. They are equipped with a coding switch to adjust the holding force and illuminated keys to clamp and unclamp the magnet. Keys and coding switch are also available as installation components. Monitor program With the additional USG Monitor software, the configuration options for the pole-reversal control unit are extended considerable. The following options are available, for example: selecting the 6-step, 8-step, and 16-step holding force curve and changing the freely-programmable holding force curve changing the pole reversal programs activating special options 755 e 08_2017

23 Electronic Pole Reversal Control Unit The pole-reversal control unit, type 756, is a controllable power and voltage source to magnetize: Electromagnets (EL) Electro-permanent magnets (EP) Electro-permanent magnets with neodymium system (Nd) The unit is controlled using 24 V DC control inputs. The system statuses are displayed via three-line display, LED displays and photo-mos relay. The unit is supplied via 3-phase mains connection 50 / 60 Hz. The unit is suitable for nominal magnetic currents of at least 6 A. The pole-reversal control unit is characterized by the following features: Optional current or voltage controlled operation Pre-selection of up to 4 freely programmable parameter sets for the magnet by optional control inputs very short switching times When switching off the magnet quickly, the energy released is fed back to the mains Very fine resolution of the holding force levels Exclusive use of PhotoMOS relays for the feedback signals (no bouncing, relays can connect smallest currents without showing high resistance) Configuration via USB and monitor program (optional) Ground leakage protection

24 The pole-reversal control unit 756 provides a nominal input of 22,17 kva (3 x 400 V, 32 A). Depending on the application (type of magnet, nominal voltage and power consumption of the magnet connected), the unit can also be supplied with reduced voltage and / or reduced fusing. To switch off electro-permanent magnets, or to reduce the residual magnetism for electromagnets, reversing of poles is necessary. Here a magnetic field with changing polarities and decreasing intensity is generated. This process reduces the residual magnetism to a minimum. The pole-reversal control unit 756 controls the necessary currents / voltages using the magnet. The basic setting of the pole-reversal control unit is made at our works prior to dispatch. If required, the pole-reversal process can be changed by selecting another pole-reversal program. In addition, it is possible to change the pole-reversal programs using the optional monitor program. Technical data: Mains supply voltage: 3x400 V AC (+/- 10 %), PE Mains frequency: 50 / 60 Hz Protection class: IP 20 Operating mode: Continuous operation perm. temperature range: 0 C bis 40 C acc. to EMC and Low Voltage Directive Holding force levels: up to 256 levels (16 freely programmable, interpolated) Installation height 1000 m MSL In case the machine is operated at higher altitudes, the possible output will be reduced. Input signals: Clamp Pole-reversal Switch off without pole-reversal Acknowledge fault message 4 inputs for selecting the holding force levels 4 extra inputs can be assigned optionally USB interface for configuration 24 V DC, 2,5 ma Program selection: Use switch S1 on the front plate to select up to 16 pole-reversal programs.. Output signals: Magnet clamped Reverse magnet polarity Fault PhotoMOS relay with common earth, MINUS or PLUS switching max. 24 V, max. 0,5 A 6 optional outputs Short-circuit behavior: The pole-reversal control unit is protected against destruction of the power semiconductors by internal fuses. Connection values for various output voltages: Type Use for Magnet voltage [V DC] max. nominal current magnet [A DC] Dimensions WxHxD 756-EL110/16 Electromagnets (continuous current) x375x245 7,2 756-EL220/16 Electromagnets (continuous current) x375x245 7,2 756-EL110/30 Electromagnets (continuous current) x375x245 7,2 756-EL220/30 Electromagnets (continuous current)) x375x245 7,2 756-EP210/30 Electro-permanent magnets (pulsed operation) x375x245 7,2 756-EP360/30 Electro-permanent magnets (pulsed operation) x375x245 7,2 756-EP210/60 Electro-permanent magnets (pulsed operation) x375x245 7,2 756-EP360/60 Electro-permanent magnets (pulsed operation) x375x245 7, /... freely configurable version for up to 4 different magnet systems; other magnet voltages available as special configuration Weight [kg] Accessories: Control unit For manual control of the pole-reversal control unit, different control units of type 744 are available. They are equipped with a coding switch to adjust the holding force and illuminated keys to clamp and unclamp the magnet. Keys and coding switch are also available as installation components. Monitor program With the additional USG Monitor software, the configuration options for the pole-reversal control unit are extended considerable. The following options are available, for example: selecting the 6-step, 8-step, and 16-step holding force curve and changing the freely-programmable holding force curve changing the pole reversal programs activating special options 756 e 08_2017

25 Electronic Pole Reversal Control Unit The pole-reversal control unit, type 757, is a controllable power and voltage source to magnetize: Electromagnets Electro-permanent magnets The unit is controlled using 24 V DC control inputs. The system statuses are displayed by means of 4 LED s. The pole-reversal control unit is characterized by the following features: developed for applications for generating safety extra-low voltage (SELV) or functional extra-low voltage (PELV) high starting current up to 16 A for electromagnets; up to 25 A for electropermanent magnets with an extremely compact construction very short switching times optionally current-regulated or voltage regulated operation Pre-selection of up to 4 freely programmable parameter sets for the magnet by optional control inputs Very fine resolution of the holding force levels the digital outputs can connect currents up to 1.5 A totally thanks to the small construction, the device is suitable for fitting on a standard mounting rail in a switch cabinet of vertical construction Configuration via USB and monitor program (optional)

26 To switch off electro-permanent magnets, or to reduce the residual magnetism for electromagnets, reversing of poles is necessary. Here a magnetic field with changing polarities and decreasing intensity is generated. This process reduces the residual magnetism to a minimum. The pole-reversal control unit 757 controls the necessary currents / voltages using the magnet. A basic setting of the electrical rated values is carried out when the pole-reversal control unit 757 is shipped. If required, the pole-reversal process can be changed by selecting another pole-reversal program. In addition, it is possible to change the pole-reversal programs using the optional monitor program. Technical data: Connection is made to a suitable (SELV/PELV) AC / DC power supply (for example, power supply Puls CPS or CP10.481) Acc. to EMC and Low Voltage Directive Input voltage: 26 V DC to 56 V DC Output voltage: up to 50 V DC (depending on the input voltage) Output current: electromagnets max. 16 A electro-permanent magnets max. 25 A (16 A per conductor) Efficiency: approx. 98 % S.C. behavior: has an overcurrent cutoff and short-circuit protection Signal inputs: 12 inputs 24 V DC 2 ma per input Signal outputs: 5 outputs high side switch 24 V, max. 1.5 A (in total for all 5 outputs) Internal supply: 24 V, max. 1,5 A Pole-reversal programs: 16, freely programmable Holding force levels: up to 256 levels (16 freely programmable, interpolated) Interface: USB Protection class: IP 20 (switch cabinet integration) Dimensions (WxHxD): 22,5 mm x 126 mm x 102,5 mm Weight: 160 g Ambient temperature: permissible in operation 0 C to 40 C permissible during storage and transport -20 C to 70 C Atm. humidity: max. 90 %, condensation not permitted Power loss: max. 10 W Max. installation height: 1000 m MSL (In case the machine is operated at higher altitudes, the possible output will be reduced) Accessories: Control unit For manual control of the pole-reversal control unit, different control units of type 744 are available. They are equipped with a coding switch to adjust the holding force and illuminated keys to clamp and unclamp the magnet. Keys and coding switch are also available as installation components. Monitor program With the additional USG Monitor software, the configuration options for the pole-reversal control unit are extended considerable. The following options are available, for example: selecting the 6-step, 8-step, and 16-step holding force curve and changing the freely-programmable holding force curve changing the pole reversal programs activating special options 757 e 08_2017

27 Permanent Lifting Magnet Options: Different suspension bracket (also special designs) Pole shoes (prism-shaped or special designs) Transport holes at rear side Technical data: Lifting capacity [dan]: 300, 500, 1000, 2000 (depending on size of magnet) Permanent Lifting Magnets of type 0519 are particularly suitable for the transport of flat steel, round steel and other profile steel products. These magnets are effective aids for material disposition, mechanical manufacturing, and for assembly works. Due to the installed permanent magnetic system, these magnets can be used without electric control and therefore without complex wiring. In addition, this permanent magnetic design provided magnetic force at any time. The ball-bearing magnet system can be easily switched on/off using the control lever. If the magnet is switched on this status is secured by a locking system. The low dead weight and the very compact design provide further benefits when designing crane systems. The magnetic force depends on the: surface quality (air gap) material composition part thickness According to EN13155, the lifting capacity specifications include safety factor 3 related to the measured pull-off strength.

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