Mumbai, Maharashtra, India
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Being an illustrious Manufacturer and Exporter of Safety Gate Monitoring Modules, we venture to achieve maximum customer satisfaction. These modules interrogate the safety switches which are operated by safety device opening/closing to watch the position of movable safety devices. Our wide range is manufactured using top-notch raw material. We meet the highest norms and grades of quality set by the industry.
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Applications
Safety gate monitoring :Safety gate monitors can be used for all applications where movable protective devices (safety gates) are required. This is the case where entering into or access to an area with dangerous movements for the purpose of machine operating, setting or fault elimination require such a safety device.
Safety switches :Proximity-operated safety switches are suited for position monitoring of sliding, hinged or detachable safety gates and guards, even in heavily polluted environments or for applications with stringent hygienic requirements. These products can also be used for sluggishly or inaccurately closing gates.
Being a well-known name in the industry, we present a huge assortment of Multifunctional Safety Modules to our customers. The quality on offer is unmatched. Special care is taken with them by running quality tests to ensure the quality on offer in conformity to set standards. For nominal rates, we provide them in safe packaging. We also provide an option to deliver at your doorstep.
Additional Information In the compact multifunctional SAFEMASTER C safety module several safety-related inputs are assigned to a single output. The selection of available safety functions includes :
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SAFEMASTER® C
Additional choice of :
SAFEMASTER®MOur safemaster M as a compact modular safety system extends our consistent safety solution concept.
It consists of 4 main modules :
The control module BH 5911 has inputs and outputs. It features the emergency-stop function, either 1- or 2-channel with manual or automatic start. 4 start keys as a maximum can be connected, which can be assigned to the control module or to the input modules in any combination. Depending on the model the safety-related output has either 3 NO contacts or 2 NO contacts plus 1 NC contact, each in redundant configuration.
The input module BG 5913 has 8 safety-related inputs. Depending on the variant these inputs can be assigned to several safety functions. e.g. 1x safety gate + 1x ESPE + 1x emergency-stop or also 1x safety gate + 1x two-hand etc. These safety functions are processed in the input module and control the assigned output module(s).
The output module BG 5912 consists of two positive-action relays, which may have a variety of contact complements depending on the variant. These include 3 or 4 redundant NO contacts or 2 NO contacts/1 NC contact or 3 NO contacts/1 NC contact. It goes without saying that also delayed safety-related outputs are available, with the time being adjustable on the module. Here, the combinations 3x NO or 2x NO/1x NC are possible.
Where no potential-free relay output is required, we offer the module BG 5912.88 with safety-related off-delayed semiconductor outputs (stop category 1). The model BG 5912.89 features 4 safety outputs and is only 22.5 mm wide. Two outputs have no delay (stop category 0) and the other two are off-delayed (stop category 1).
Tailoring of the system to the relevant application is possible by using a control module which can be extended by up to 3 input and output modules each.
Applications DOLD’s multifunctional safety systems provide optimized solutions for a variety of applications in machinery and plants, e.g.
Attempting to match pace with the ever changing demands of customers, we are engaged with presenting an immense assortment of Emergency Stop Modules to our customers. We, being a Manufacturer and Exporter, endeavor to keep up the quality we are recognized for. To that end, a team of quality auditors strictly matches the quality to industrial quality norms to ensure there is no slump in the quality. This package of quality is on offer at economical rates.
Additional Information : In large installations with multiple emergency-stop buttons, it is useful to quickly know which emergency-stop button has been operated to minimize downtimes. For this application DOLD offer specific emergency stop button monitors with indication and bus outputs.
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Setting ourselves up as a major player in the industry, we bring forth Wireless Safety Modules. They are manufactured making use of unmatched raw material ensuring their finest quality and versatility. They are wireless companion which are used for cutting off dangerous movements in less than a second. We leave no stone unturned in our attempts to match our quality to the various parameters and standards set by the industry. They are available at economical rates. Our team of seasoned professionals takes care of the designing and fabrication.
Additional Information : Sometimes, persons must access dangerous areas of machinery and installations to carry out machine settings or fault elimination, for example. Because they are out of the reach, stationary emergency-stop buttons cannot be reached early enough for a cutoff of the machinery within seconds. SAFEMASTER W, a wireless companion for your safety, is the solution for this problem. It allows you to cut off dangerous movements within a fraction of a second.
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Technology SAFEMASTER®W consists of a light-weight ultra-compact hand-held transmitter and a receiver with safety-related outputs. Signals are transmitted via both radio transmission and also infrared radiation. This ensures that the user of the hand-held transmitter can only start systems which are in his/her view.
Also suited for control functionsApart from the safety function the hand-held transmitter has optional free configurable keys and switches. They allow convenient.
Applications
Versatile : The ideal solution for mobile and stationary machines and plants with dangerous areas:
In synchronization with the customers’ diverse needs and requirements, we are involved in providing an ultimate assortment of Two Hand Control Modules. They are immensely popular in the market. They stay in high demand across the world due to their effective performance and durability. We go all-out to present the highest quality available in the market. The quality is made certain to meet with industrial grades of quality.
Additional Information : Two-hand controls on machinery and plants are used to protect operators against injuries by dangerous closing movements. The control unit is located outside the dangerous area to prevent the operator from getting into this area before a dangerous movement is actually stopped.
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Technology : Two-hand controls consist of an operating panel featuring two operating elements (control push buttons) which have to be arranged so that both hands must be used for operation. The DOLD evaluator module only releases once both control elements are operated simultaneously within 500 ms. The release command is present as long as both control elements remain operated. When one control element is unhanded a new control command can only occur if the other control element is also unhanded and both elements are operated again.
ApplicationsDOLD evalutor modules are used on all machines and plants where a dangerous closing movement may cause injuries of the operating personnel.
Providing to the customers’ needs with merit, we are involved in offering Light Barrier Controller. As a chief Manufacturer and Exporter, we offer a first-class quality range. It is made of high-quality raw material. It is electro-sensitive protective equipment (ESPE) which is used for cutting off dangerous movements and initiating a safe condition when persons or objects approach to a dangerous location.
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Makin use of our world class facilities and high-tech machinery, we aim to mesmerize our customers by the brilliance on offer. Insulation Monitor on offer is available in a variety of specifications. The raw material used in manufacturing is of first-rate quality. The manufacturing process is conducted out by a team of talented professionals who put their best efforts to make certain they produce nothing short of best possible quality.
Additional InformationUnscheduled downtimes of machines and plants mean a considerable cost factor. By early detection of insulation faults DOLD insulation monitors help to prevent failures of electrical equipment and thus ensure a better operating reliability and plant safety.
They are used both in earthed and also non-earthed systems, but differ in their function principle:
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Applications Differential-current and insulation monitors are used for early detection of insulation faults in applications where unscheduled downtimes of machinery would have serious consequences.
They are used in earthed systems for reasons of efficiency and protection against fire and accidents, but they are required by law in non-earthed systems for the same reasons according to DIN VDE 0100-410 and DIN EN 60204-1. Applications include:
Moreover, insulation monitors are used to monitor cut off consumers, which are only needed in certain situations, but must then function without problems, flue gas extraction systems in case of a fire, for example.
Trusting on our industrial knowledge, we have cemented our status as a leading figure in the industry. We offer Fault Annunciator to our respected customers at attractive price. It is equipped with striking features such as lasting life, robustness and high performance. It is applied for monitoring purposes of machinery and plants of any type. Our excellent distribution system enables you to get it delivered to your doorstep in no time.
Additional InformationBy lamps, buzzers or also in form of clear text DOLD fault annunciators inform on faults and conditions in electrical installations in industrial facilities and buildings. They also inform on work operations to be done. DOLD fault annunciators considerably reduce the time for fault finding in particular in complex machines and plants. Thus they help to minimize downtimes of production plants and save cost.
Apart from simple electrical group fault, new-value and first-up annunciators, electronic clear text fault annunciating systems are available for complex applications.
Especially when programmable logic controllers (PLC) or management systems are used it is indispensable to install fault alarm acquisition independent of the process level to keep control when the plant control fails and to avoid damages.
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Technology Group fault, new-value and first-up annunciators have normally acoustic and visual indicators and are designed for DIN rail mounting or also for front panel mounting.
Group fault annunciators are available for 4 up to 160 signals and energize a relay when a fault signal occurs. Such a relay can be de-energized by an acknowledging key. A visual (flash lamp) or an acoustic (horn) transducer is connected to this relay output. New-value and first-up annunciators are used where the chronology of fault signals is essential.
The new-value annunciator signalizes that alarm among a number of alarms the status of which has changed last after the last acknowledgement. New-value annunciations are indicated by a flash lamp and after acknowledgement as permanent light until the fault is cleared.
The first-up annunciator signalizes that alarm among a number of alarms the status of which has changed first after the last acknowledgement. The first occurred fault is indicated by a flash lamp and consequential faults by permanent light.
Text fault annunciator systemsText annunciator systems echo the correct sequence of the arrived fault signals. Stored alarms can be called up and viewed on the display. Text fault annunciator systems can be operated as new-value and also as first-up annunciators.
Text fault annunciators have outputs for group annunciation, horn and system readiness. Inputs and outputs are metallically isolated and thus ensure a maximum of interference immunity. Beyond standard applications, statistics, analog processing, time interrupt functions, decentralized acquisition and output as well as multilingualism of the fault texts are customer-specific options.
A printer can be used for logging, i.e. for printing date, time, and test of the fault and the whole statistics memory of the system. With appropriate programming software also other settings than message texts can be defined such as energized/de-energized-on-trip principle of inputs, delay of inputs as well as grouping and priority of outputs. A decentralized fault alarm acquisition in complex installations can be configured with up to 30 modules with 8, 16, 24 or 32 inputs each. Via a separate module, these modules are connected to a two-wire line which is connected to the central fault annunciator. A maximum of 957 fault alarms can be acquired with this. Additional remote control stations complete the system. De-energized- versus energized-on-trip principle
De-energized on trip principleFor safety reasons DOLD recommends the de-energized-on-trip principle for fault annunciators. Here, the contact falls back in its normal position when the operating condition is met. Operating condition is loss of voltage which may be either due to a fault to be annunciated or to a fault in measured current transmission (e.g. damage of the supply cable). Thus, the wiring itself is included in the monitoring.
Energized on trip principleThe contact switches to its operated condition when the operating voltage is present, i.e. a fault alarm is initiated by an electric signal. Disadvantage: If the supply conductor to the fault annunciator is interrupted, neither this interruption nor any other fault can be indicated by the device. This is why DOLD recommends the de-energized-on-trip principle.
ApplicationsDOLD fault annunciators are used to specify maintenance intervals for preventive maintenance and for general monitoring in following application areas (among others):
Counting on our experience in the industry, we have positioned us in the upper echelons of the industry by offering unequaled quality in the form of Extension Modules. Our distribution network allows us to facilitate quick and convenient delivery in a matter of time at your doorstep. They are used for multiplying the output contacts of the basis modules. They also make it possible to contact reinforcement by splitting into multiple control circuits.
Extension modulesExtension modules can be used to multiply the output contacts of the basis modules. Also contact reinforcement by splitting into multiple control circuits is possible.
Delay modulesThe emergency-stop of a dangerous movement can be accelerated by a controlled stop operation according to the stop category 1 by allowing motor brake functions or controlled drive speed reduction to run during the cutout delay.
Coupling modulesCoupling modules with positively driven contacts are used to switch safety-related functions as links between logic circuitry and load. The positively driven NC contacts can be used to monitor the closing contacts.
From single function safety modules up to modular multifunction safety systems with field bus connections, designed to protect both man and machine. Sometimes it is not too easy for machine and system manufacturers and users alike to design safety-related circuits using discrete contactor hardware to comply with the abundance of regulations currently in place. To assist them, DOLD offer type-tested safety modules allowing tailored solutions to be installed with respect to functionality and cost.
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Extension modules : Compact module with positively-driven safety relays which is triggered by the associated function module (basis module) and monitored via a feedback loop. An extension module can only reach the basis module's safety category acc. to EN 954-1 as a maximum.
Delay modules : Delay-release time-delay relay with or without auxiliary voltage and adjustable or fixed time setting. High long-term stability thanks to digital timer. Two time circuits working independent of each other to implement a cutoff redundancy. Positively driven release contacts.
Coupling modules : Coupling modules feature safety relays with positively driven contacts according to EN 50205. Positive-action is present if the contacts are mechanically linked to each other so that NC and NO contacts can never be closed at the same time. For this it must be ensured that a contact gap of at least 0.5 mm is present over the whole service life, even in fault condition.
Applications
Extension modules : Multiplication of release circuits of a basis module to cut off any number of control circuits in a safety-related manner.
Delay modules : Quick stopping of a dangerous movement of drives with masses.A typical example are tools rotating with high speed, which still coast after cutoff for a longer time.
Coupling module : Used, for example, for self-monitoring safety circuits, for the adjustment of control and power levels and for switching safety-related functions.
Accumulating commendations from all over, we are placed among the top figures in the industry Speed Monitor Relay on offer is available in a wide variety of designs and sizes. It is used for monitoring the rotation of drives for generating a control signal at zero speed or when it exceeds a set speed. Superior technology and high tech machinery are used for its manufacturing.
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TechnologyThese modules have measuring circuits in redundant configuration with 2-channel control by proximity sensors, either as pnp or npn input. The thresholds are either fixed or can be adjusted up to 26000 IPM. Zero-speed monitors can also work without sensors by measuring the remanence voltage of the coasting motor and evaluating it at zero speed.
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ACURO-XR - The Robust Encoder For All Environmental Conditions! Our company is engaged in Absolute Encoder Acuro drive and Acuro industry, incremental encoder ex-proof and stainless steel versions bus and heavy duty encoders. Singleturn 12 Bit Resolution
The special features of the new Absolute Encoder ACURO-XR series not only comprise its particularly rugged enclosure, but also generously dimensioned, rigid ball-bearings. Capable of withstanding even high axial and radial loads on its shaft axis, The Absolute Encoder easily achieves a mechanical life of 109 rotations at a permanent radial load of 200 N and simultaneously, an axial load of 200 N. The newly designed ACURO-XR makes a difference. It easily withstands highest accelerations, extreme climatic fluctuations and even underwater operation. In this way, our rugged Absolute Encoder is ideally suitable for applications in wind farms, marine or utility vehicle applications, as well as for use in presses or wood and stone processing machinery: applications where high resistance to harsh environments and maximum reliability are required at the same time. The AR62 is electrically compatible with standard encoders and operates with the magnetic technology. Available interfaces are SSI, BiSS, CANopen and Analogue (0 . 10 V or 4 . 20 mA). With an installed depth of only 32 mm, this Absolute Encoder is the most compact type in its class. Valuable space has been saved � to the benefit of the overall machinery design. Application Fields
As a well-known player in the industry, we enable ourselves to present a wide range of Measuring Relay to our customers. The quality on offer is unmatched as we take meticulous care of quality by testing it against the highest grades of quality set by the industry. We also provide an option to deliver at your doorstep at your ease owing to our first-rate distribution system for pocket friendly rates.
Additional InformationDOLD measuring devices reliably monitor electrical quantities such as current, voltage, power, resistance etc. and signal fault conditions and disturbances. Thus, these products also protect complex systems and ensure an optimal production sequence. LEDs on the front provide visual status indications. Output contacts or interfaces to bus systems allow information transmission.
AdvantagesCustomers benefit from DOLD's complete functional range. Our experienced engineers give you proficient advice when it comes to the selection of products perfectly tailored to customers' requirements for a variety of monitoring and measuring applications. It goes without saying that also customer-specific adjustments are possible (e.g. modification of voltage ratings, contact materials, etc.). So we offer solutions optimized for your monitoring and measuring requirements - all from one hand. Our competitive edge becomes yours. We offer both mono- and also multifunctional relays allowing our customers to configure at their own discretion solutions either with a minimum of investment or also with a maximum of flexibility and functionality.
ApplicationsDOLD monitoring and measuring relays are used in all industrial areas and in a variety of applications. Some application examples for the different device groups are mentioned below:
Thanks to our distinction at meeting customer needs, we have positioned ourselves as a prime figure in the industry. We offer Safety Mat Modules in a wide assortment. The inputs used in manufacturing are first-class. Our wonderful quality team runs various quality checks to ensure we exceed the quality grades. These quality checks ensure their dimensional accuracy and fine performance.
Additional Information : Evaluation of safety mats: These safeguard products generate a control command when exposed to an operating force and cause an immediate stop of a dangerous movement via an evaluator module.
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Applications : Safety mats are safeguard products designed to protect large-area dangerous areas and to control access to machinery.
As a well admired provider of Residual Current Monitor, we bring you a huge variety of unrivaled quality. Our team of experts uses only first-class raw materials to ensure that our product matches to the highest quality grades. It is the perfect solution for commercial application in both earthed and also non-earthed systems. The remarkable features like optimum performance and longer service life make it an interesting proposition.
Additional InformationUnscheduled downtimes of machines and plants mean a considerable cost factor. By early detection of insulation faults DOLD insulation monitors help to prevent failures of electrical equipment and thus ensure a better operating reliability and plant safety.
In earthed systems (TN systems) DOLD residual current monitors detect fault current with the principle of differential-current measurement and are mainly used to avoid cost-intensive downtimes and to prevent the risk of fire which is latent in the case of slowly evolving insulation faults.
In non-earthed systems (IT systems), the insulation resistance to earth of the system to be monitored is measured. Such systems are secured by insulation monitors the use of them in IT systems is required by law by the norm “Safety of Machinery” DIN EN 60204-1 or DIN VDE 0100-410. Thanks to deliberately kept simple functionality of DOLD’s insulation monitors customers benefit from a considerable cost advantage combined with the high quality standard accustomed from DOLD.
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Applications Differential-current and insulation monitors are used for early detection of insulation faults in applications where unscheduled downtimes of machinery would have serious consequences.
They are used in earthed systems for reasons of efficiency and protection against fire and accidents, but they are required by law in non-earthed systems for the same reasons according to DIN VDE 0100-410 and DIN EN 60204-1. Applications include:
Moreover, insulation monitors are used to monitor cut off consumers, which are only needed in certain situations, but must then function without problems, flue gas extraction systems in case of a fire, for example.
