Exhibitor products

In our maintenance center, we specialize in the brand-independent inspection, revision and repair of virtually all types of electric motors, generators, gearboxes, fans, compressors and compressors. In the event of unplanned equipment breakdowns, it is important for the operator that repair work is carried out within a useful period of time so that it does not result in excessive downtime costs. Maintenance and repair work on electrical drives is our core competence and has a long tradition with us. With a high level of technical and personnel availability, we guarantee our customers a speedy and competent solution. Our service portfolio is very extensive: It includes the replacement of wear parts, reconditioning of key components, up to load testing! If the repair of the engine is no longer economical, our new engine warehouse offers a cost-effective and timely alternative.

Precise localisation of faults during operation The fault-detection process for insulation faults can become a costly and time-consuming process in extensive industry systems. The insulation fault location system of the VARIMETER EDS family from DOLD, consisting of a test current generator RR 5886 and the insulation fault search device RR 5887, monitors and locates insulation faults in a quick and safe manner in complex, isolated AC/DC mains (IT systems). The Modbus RTU interface allows a fast connection of the devices into existing bus systems. The corresponding current transformers ND 5017 work independent of each other. They are simply connected to the input channels of the fault locating module RR 5887, which also calibrates them. Insulation fault search devices can notably be used advantageously in complex and widespread power supply systems. Even computer centres, which are operated in unearthed mains (IT system) due to availability and insensitivity to disruption, benefit from the use of an insulation fault location system. Faulty electrical circuits can be found and removed quickly before a system break down with loss of data. The information about the location of the fault are visualised directly on the RR 5887 insulation fault search device. In addition the actual fault current values can be read, localised and visualised via Modbus. The insulation fault location system allows for automatic and quick pinpointing of faulty electrical circuits, thereby increasing reliability and system availability. You will very quickly recoup the purchasing costs for the insulation fault location system thanks to reduced maintenance costs and eliminated service interruptions. Some application examples include power plants, shipbuilding, traffic engineering, industrial systems, PV systems etc.

IMD with UL 2231 approval - especially for DC charging stations Electrical safety must be guaranteed during the charging process. For this purpose, an unearthed DC power supply system (IT system) with insulation monitoring is set up and monitored with an insulation monitoring device (IMD). Dold has developed a smart insulation monitoring solution for DC charging stations that also fulfils the requirements of UL 2231. The insulation monitor RN 5893 from the VARIMETER IMD family monitors the charging process from the charging station to the vehicle in combination with the coupling device RP 5898. - Response delay < 10 s - Nominal voltage up to DC 1000 V - Manipulation protection due to sealable transparent cover

Insulation monitoring for modern IT systems The demand for the availability of machines and apparatus in the region of factory machinery and process technology is constantly increasing. The requirement for this is a functioning and reliable power supply. Unexpected insulation faults in the system can lead to unwanted power supply failures, and even cause personal injury or property damage. This is why insulation monitoring equipment is typically used in IT systems. The insulation monitor RN 5897/010 from the VARIMETER IMD series by DOLD was developed especially for use with modern power supplies. These are often comprised of converters, thyristor regulators, and direct current components. Through EMV interference suppression measures, high leakage capacitance onto the ground is present. The RN 5897/010 is suited for system leakage capacitances of up to 1000 μF, and for voltages up to AC/DC 230 V. Using the additional ballast unit RR 5898, it is possible to install the unit in systems with voltages of up to AC 1000 V and DC 1500 V. Besides an adjustable alarm threshold, the insulation monitor also has an adjustable pre-alarm threshold. A multicoloured LCD screen constantly updates stating the current insulation value. The insulation monitors guarantee additional surveillance over current-free networks. A selective earth fault detection of L+ and L- enables quick fault localisation.

Insulation monitoring for DC charging stations The number of electric vehicles is constantly increasing and will grow even faster in the future. This will also drive forward the expansion of the charging station infrastructure, as DC charging stations are the first choice when electric vehicles need to be charged in the shortest possible time. Electrical safety must be guaranteed during the charging process. For this purpose, an unearthed DC power supply system (IT-grid) with insulation monitoring is set up and monitored by means of an insulation monitoring device (IMD). The user must never be exposed to high voltages (up to 1000 V) at any time. The insulation monitor RN 5897/020 of the VARIMETER IMD family is used especially for DC charging stations according to the IEC/EN 61851-23:2014/AC:2016-06 standard and monitors the charging process from the charging station into the vehicle. The device is characterised by the short response delay of ≤ 1s, a rated voltage up to DC 1000 V with coupling device and the detection of asymmetrical as well as symmetrical insulation faults. The integrated voltage measurement ensures reliable detection of the insulation resistance in the IT grid. The insulation monitor also features a selftest. This takes place automatically after power-on and after every full operating hour.

Safety for mobile generators The insulation monitor RN 5897/300 from the VARIMETER IMD series by DOLD was developed especially for use with mobile generators. In mobile applications, such as in emergency vehicles or on construction sites, electrical energy must be used to reliably prevent injuries and property damage. Furthermore, mobile generators need to guarantee immediate operational readiness, without requiring time-consuming procedures to set up safeguards (such as installing and calibrating grounding systems etc.). That’s why the safeguard “electrical separation with insulation monitoring and shutdown” is available. It triggers an automated shutdown within < 1 s if the insulation resistance sinks below 100 Ω / V. The RN 5897/300 meets these demands, and fulfills the requirements of DIN VDE 0100-551 for mobile generators. The insulation monitor is suitable for system leakage capacitance of up to 30 μF, and is designed for universal use in ungrounded AC, DC and AC/DC networks. Besides an adjustable alarm threshold, the insulation monitor also has an adjustable pre-alarm threshold. A multicolored LED status light keeps users informed continuously on the current operating status. The device enables reliable monitoring, even in a network without current.

New paths are created by walking them. The groundbreaking performance of this newly developed linear motor stage is characterized by its integrated compactness, achieved through the seamless incorporation of the servo controller, wiring, and cable management. This leap in design efficiency sets a new standard for miniaturization, enabling designers to construct machines and automated systems that are more compact and space-efficient. In contrast to traditional timing belts and spindle drives, this directly driven linear motor stage offers greater precision, speed, and quiet operation The axis includes Ethernet bus coupling with various protocols and connects directly to the PLC. Together with the PLCopen libraries, the axis can now be easily moved in Cyclic synchronised mode or Profile position mode. With the connection to the 12V DC supply the axis is immediately ready for operation. The absolute measuring system allows an immediate start without prior referencing. Specific advantages, USP's: - Completely integrated linear motor axis INTAX® Tx - Servo controller integrated - Linear Motor cabling integrated - Cable chain integrated Only two connections: - Ethernet Bus with various protocol stacks - 12 - 36V DC power supply

The new IEH3‐4096 series from FAULHABER is the most compact 3‐channel encoder of its class. The new model delivers two square‐wave signals as well as an additional index channel. It offers a higher resolution, an extended operating temperature range and improved speed control, especially in the low speed range. The encoder increases the length of the motor by just 1.4 mm and can be combined with numerous precious‐metal commutated DC‐micromotors of the FAULHABER SR series measuring 15 to 22 mm in diameter. Since they are used in extremely small machines and assemblies, size is a decisive factor.

This integrated measuring system combines ball rail and roller rail systems with an absolute length measuring system in our new IMS-A product. The system accuracy of this inductive measuring system is comparable to high-precision glass scales and is therefore ideally suited for replacement of external measuring systems on machine tools.

Integrated Motor ST NEMA24 -310-48-T1 is a stepper motor with integrated control system. The stepper motor combines a compact design with high torque and precise control of the motor shaft. The series-standard control system combined with item MotionSoftStepper software makes installation and commissioning easier. Thanks to the high level of integration in one casing, linear technology solutions can be wired up and used with ease. A USB and RS485 connection are available for programming purposes.

More space for your system concepts

The integrated servomotors MAC404, MAC804, MAC1004 and MAC1404 represent a powerful generation of AC servo motors with built-in Ethernet interface, integrated ePLC, and battery-free absolute multi-turn encoder. All models operate directly from 115/230 VAC and combine motor, power electronics, controller, encoder and communication in one compact unit. This significantly reduces wiring effort, cabinet size and installation time. The power range spans from 400 W (MAC404) up to 1500 W (MAC1404), with peak power levels reaching up to 4,500 W. All motors offer a speed range of 0–3000 RPM (max. 3600 RPM) and deliver nominal torques from approx. 1.3 to 4.8 Nm with peak torques exceeding 14 Nm, depending on the model. Various flange sizes and motor lengths are available, with optional integrated brake. Protection classes range from IP55 to IP66/IP67, combined with robust M12/M16 industrial connectors. Key features across the entire series include: integrated Industrial Ethernet interfaces (e.g., EtherCAT, Profinet, EtherNet/IP, Modbus TCP), built-in ePLC for decentralized automation directly inside the motor, STO safety function (Safe Torque Off), battery-free absolute multi-turn encoder, flexible option modules such as IO-Link, RS485, CANopen, wireless extensions and additional I/O modules. Thanks to their fully integrated architecture, the MAC motors are ideal for compact machines, modular systems, robotics, packaging equipment, handling systems and any application requiring high performance in a minimal footprint. Their combination of power density, simple installation, wide protocol support and decentralized intelligence makes them one of the most versatile AC servo solutions for modern Industry 4.0 environments.

The JVL stepper motor linear actuator is available in non-captive, external linear and captive options. Captive and external linear are also available with integrated build in controller or driver.They are available in a wide variety of resolutions from x mm/rev to y mm/rev. In addition to our standard configurations can we custom design this stepper motor linear actuator to meet your specific application requirements. The range come in three sizes from 42mm to 86mm square flange NEMA17,NEMA23 and NEMA34. Key electronics features: Industrial Ethernet. 6 Protocols Very high motor power and torque Closed-loop operation with current control Very high efficiency= low temperature rise Absolute multiturn encoder Safe Torque Off (STO) input TUV approved. High resolution 409600 cnt/rev. Speed 0-3000 in 0.01 RPM steps Wide supply range 7-72 VDC Industrial Ethernet:Profinet, EtherCAT, Powerlink, EtherNet/IP, Modbus TCP or SERCOS III are available and for EtherCAT and SERCOS III synchronization and drive profiles are available. MACtalk can use Ethernet for comissioning the motor so no need for RS232/RS485 converter or additional cables. The motor has the ability to be upgraded with other protocols or newer versions of the same protocol at any time. Because of the upgradeability, the JVL Industrial Ethernet module is also ‘future proof' as newer versions of the protocols will always fit into the design. The motor is equipped with two Ethernet connectors and a built-in switch, enabling line topology without any extra expensive hardware. Several LEDs, enabling technicians and operators to get a quick status overview  Closed-loop provides higher torque, faster acceleration, current control, stall free operation and quieter operation compared to more traditional step motor systems. Motor range: MIL171 and MIL176 MIL231 and MIL232 MIL341

The Flex I/O series is a flexible, reliable, and efficient signal transmission system. The system can access multiple standard communication networks and is equipped with numerous signal modules to facilitate the provision of customized solutions while saving space in the control cabinet, enabling you to develop more competitive customized solutions. Compatible with the following bus systems: - EtherCAT - ProfiNET - EtherNet/IP - Modbus-TCP

The structure is based on a decentralized and self-sufficient system with so-called "SmartGridBoxes" from Camille Bauer. The individual states of the distribution boxes (low voltage) are recorded dynamically and in real time. The measured values are transmitted to a decentralized leader via LTE router, IoT gateway or broadband. From there, the status is compared with the target values. Depending on the difference, the inverters receive a control command via a controller for green power generation systems so that PV systems only feed into the grid in stages when this is actually beneficial to the grid.