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Latest press releases from DOLD

 

Latest press releases from DOLD

 

Wireless Safety System with Bidirectional Radio Transmission

Safety and control functions via radio   The innovative wireless safety module UH 6900 of the DOLD SAFEMASTER W series provides more flexibility in hazardous areas as well as greater efficiency and economy. The wireless safety system comes into its own above all in mobile and extensive installations in which wiring is not possible or would be extremely complex.   The TÜV-certified system for safety requirements up to PL e / Cat. 4 or SIL 3 consists of two or more compact...

Saves space and costs

Intelligent motorstarter with motor protection function   The intelligent motorstarter UG 9256 from DOLD's MINISTART series controls 3-phase reversing drives up to 4 kW cost-effectively. It combines up to six functions in a space saving compact en-closure with only 22.5 mm width. The motor controller also offers a soft start / soft stop function, as well as the reversal function, a current monitoring and a mo-tor protection function. In addition, the intelligent motorstarter has a...

Safety switch and key transfer system

Robust stainless steel mechanism in an attractive fibre reinforced polymer (FRP) design   SAFEMASTER STS combines the advantages of safety switches, guard locks, key transfer, and command functions in a single system. The highly robust stainless steel construction, trusted for many years, is now available with an even more sophisticated design. It offers a rugged stainless steel mechanism in an attractive fibre reinforced polymer (FRP) housing.   The safety system was specially...

Secure drive systems sensorless

Machines, equipment, process engineering – frequency plays a role   Ensure high security for an economical price, the speed and frequency monitor UH 6937 from the SAFEMASTER S series opens up new possibilities in machine safety for construction, planning, and retrofitting, for instance in wood machining or for tooling machines.   Monitoring the output frequency of drive inverters is just one of its many uses. In case of over- or under-frequency, or if the frequency falls...

Reliably identify current faults!

Increased availability of machines and devices   The residual current monitor RN 5883 of the VARIMETER RCM family from DOLD, sensitive to all universal currents, records current faults either with DC or AC components in earthed supply systems (type B). Through early recognition of insulation faults, the RN 5883 provides a preventative service and maintains machines and devices. System downtime and production disruptions can consequently be avoided. The residual current measurement takes...

Electrical Safety for Power Supplies!

Reliable Insulation Surveillance in IT Networks   The demand for the availability of machines and plants 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 plants can lead to unwanted supply disruptions culminating in damages to persons and property. Therefore, insulation surveillance equipment in IT systems is required.   The insulation...

Now with safer speed monitoring

Configurable safety system SAFEMASTER PRO   DOLD expands the functional range of its modular and configurable safety systems SAFEMASTER PRO around safer drive function. It allows up to 12 axes to be monitored.   The TÜV-certified system for safety requirements up to PL e/Cat. 4 and SIL CL3 also offers modules for safer speed and standstill monitoring of 1 or 2 axes per module. The speed measurement can occur either by using an encoder or a proximity sensor.   The...

Comfortable Speed Monitoring

Increased safety with machines and devices   With the safe speed monitor UH 6932 from the SAFEMASTER S-Series offers DOLD a comfortable solution for safety-focused speed monitoring, and how it comes into usage in wind turbines, centrifuges or in stage technology. The device excels itself particularly through simple operation and comfortable equipment. Standstill, high and low speed, are safely monitored in automatic operation as well as adjustment.   The speed monitor finds use...

Electrical safety for power supplies!

Reliable insulation monitoring in mixed IT networks   Undetected insulation faults in non-earthed networks may lead to accidents with considerable personal injuries and property damages. Monitoring of IT networks by insulation monitors is therefore normatively mandated. The insulation monitor LK 5896 from the VARIMETER IMD series by DOLD was developed especially for use in modern power supply systems.   These often include inverters, rectifiers, thyristor controllers and directly...

Commands at option

Flexible Option module for safety switch - and trapped key interlock system   The robust option module extends our safety switch- and trapped key interlock system SAFEMASTER STS. It allows a simple integration of command-, signal-, and emergency stop functions in already existing systems as well as in new safety concepts. Therefore the SAFEMASTER STS system will be a real “Control Center” that is able to control command functions, releases, main- and maintenance...

Avoiding thermal overload

Protect motors by VARIMETER EX   MK 9163N ATEX and MK 9003 ATEX avoid reliably thermal overload on motors. The devices of the VARIMETER EX series of DOLD monitor and protect standard motors and explosion proof motors equipped with PTC resistors fulfilling the directive 94/9/EC.   The devices that are tested for functional safety (EN 50495, EN 61508 und EN ISO 13849) are used in applications with harsh environment or conditions e.g. fast switching cycles, heavy duty starting or...

Bistable relay for energy-efficient design

With 8 forcibly guided contacts!   Special applications require relays that maintain their switch position during a supply voltage outage, thereby preventing loss of information about the current switch state. This relay is unique thanks to its high resistance to vibration and shock. The new bistable relay OB 5623 by DOLD fulfils these requirements. Furthermore, forcibly guided contacts allow for secure inquiry of the switch position.   Reduced energy consumption in the...

Intelligent, flexible and high-performing!

Soft starter with thermal motor protection for three-phase current compressors   The soft starter PF 9029 from DOLD’s MINISTART family is a robust, electronic control unit for soft starting three-phase current compressors with integrated monitoring functions. With an installation width of 67.5 mm, the PF 9029 offers soft starting, thermal engine protection, and voltage and phase sequence monitoring in just once device in order to safely operate a system of this kind.   This...

The smallest emergency stop module in the SAFEMASTER family

Safety in a compact design   The bar has been set for miniaturising safety switches with the emergency stop module RK 5942 from DOLD’s SAFEMASTER family. With a mere overall width of 17.5 mm and a device depth below 70 mm, the compact emergency stop module is also suitable for use in installation and industry terminal blocks. The RK 5942 particularly shows its strengths when there is little space in the control cabinet.   The emergency stop module serves to protect...

Space-saving phase monitor!

Voltage monitoring in three-phase mains   The space-saving phase monitor RK 9872 from the VARIMETER family by DOLD performs reliable monitoring of three-phase mains. With an overall width of 17.5mm, under and overvoltage along with the phase sequence in three-phase mains are all simultaneously monitored to safeguard the operation of motors and systems. The RK 9872 particularly shows its strengths when there is little space in the control cabinet.   The phase monitor serves to...

Precise localisation of faults during operation!

Quick insulation fault location in unearthed mains   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 location device RR 5887, monitors and locates insulation faults in a quick and safe manner in complex, insulated AC/DC mains (IT systems).   Insulation...

MINISTART: High functionality on smallest space!

Soft starter for the 1.5 to 7.5 kW power range   In four power levels, DOLD presents its new soft starter UH 9018 from the MINISTART series. The expanded functionality of the two-phase controlled device with integrated current regulation offers additional advantages for demanding applications.   With the UH 9018, DOLD has developed a cost-effective variant: a replacement for star-delta starters. Its sleek construction and snap-on ability on 35mm standard rails make installation...

VARIMETER RCM: Reliable detection of fault currents

Integrated residual current measurement increases availability   By detecting insulation errors at an early stage and through preventive maintenance and upkeep outside of hours of operation, unexpected machine and system standstills, and with it production loss, can be avoided. Residual current monitors, also known as RCM, measure and monitor residual currents in earthed power supply systems.   The compact residual current monitor IR 5882 from DOLD’s VARIMETER RCM family...

Wireless enabling switch

Ergonomic, flexible, safe   The wireless enabling switch SAFEMASTER W of DOLD permits a safe operation and disconnection  in the case of dangerous situations. It can be used for various applications and allows maximum mobility. It fulfills the safety requirements up to PL e/Cat 4 to EN ISO 13849-1 and SIL 3 to EN 61508. It is TUEV approved.   In automated production plants, safety equipment makes sure, that the user does not enter a dangerous area during automatic operation....

Electrical safety for power supplies!

Reliable insulation monitoring in mixed IT networks   Undetected insulation faults in non-earthed networks may lead to accidents with considerable personal injuries and property damages. Monitoring of IT networks by insulation monitors is therefore legally mandated. The insulation monitor LK 5894 from the VARIMETER IMD series by DOLD was developed especially for use in modern power supply systems.   Modern power supply systems often include inverters, rectifiers, thyristor...

Flat safety relay

With 8 forcibly guided contacts   Since many years, the DOLD safety relays OA 5621 and OA 5622 have been used successfully in safety relevant applications. Now the relay family with 4 and 6 pole models is extended. The new 8-pole safety relay OA 5623 fulfills the demand to have more contacts and at the same time keeping the flat and compact construction.   This 8-pole variant is only 15.8 mm high in a wash proof enclosure. At the same time, the base area is still small and the...


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