Marotechniek Controls distinct off reliability, class A products, reliable with a low down time, remote monitoring and consultant possible.
Controls of hoist applications for
winches included constant tensioning:
Marotechniek has a long time experience of hoist applications for winches, from simply Direct On Line till high performance constant tensioning with frequency drives. Controlled by wire, communication or by radio remote controls.
Main current MCC standard till 3200A,
400/690Vac, above 3200A in request:
Marotechniek assembled main current cabinets (engineered by Rittal Power Engineering) with possibility of power analyzers, motor running circuit breakers. Following NEN1010, NEN-EN 60-204-1, NEN-EN-IEC 60-439-1 and NEN 3140.
Marotechniek developed one of the modern dredge control system who is available in the market.
PLC standard are the Siemens
S7-300/1200/1500 series, communication with Profibus DP or Profinet protocols.
Plc and bus communications from other manufactures are also possible.
HMI by Siemens WIN CC with English, German, French, Russian, Bulgarian and Romanian languages. On request we deliver every language you want.
Dredge equipment like pressure and incline transmitters, speed measurements (Doppler and electromagnetics), radioactive density measurement and non-radioactive measurement for reliable production measurements.
Possibilities to monitoring the dredge control by GSM modem.
Marotechniek has their own electrical and drives specialists/engineers.
Winch control for hoisting and constant tensioning applications, Direct On Line and by frequency drive.
Projects on turnkey based.
We are there for you 24/7 with our maintenance department for repair or inspection om location.
Marotechniek uses modern frequency drives from Emotron. Marotechniek has a long term relationship and since the beginning of 2015 we are officially partner of Emotron frequency drives.
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FRENIC4600FM5e suppresses the harmonics by using a multi-pulse diode rectiﬁcation system (24 to 60 pulses), thereby substantially reducing the generation of harmonics in comparison with previous models. The harmonic generation level stipulated in IEEE-519 (1992) is satisﬁed. This inverter is ideal for power sources.
Because an output transformer is unnecessary, inherent losses are eliminated.
Multi-level PWM control minimizes switching loss.
Because the harmonic current on the power source side is reduced, the primary winding of the input transformer has a reduced harmonic losses.
Due to full-wave rectiﬁcation with multi-phase diodes, operation is allowed with the source power factor (power factor on power source side) set at a high level.
A phase advancing capacitor and a DC reactor for improving the source power factor are unnecessary.
A smaller power capacity sufﬁces for inverter operation.
Higher equipment reliability is achieved by reducing the number of inverter cells by
using a single-phase, 3-level inverter, etc..
Stable operation is maintained despite load ﬂuctuations, by the simple sensor-less vector control
function. The control device has a 32-bit MPU for quick response and high-accuracy.
Vector control with a speed sensor is available (as an option) for equipment having high speed and torque accuracy requirements. (option)
The inverter is air-cooled, requiring no cooling water. Start/stop operation, parameter setting, fault display and data monitoring are performed on the touch panel with simple loader functions. Simple, built-in auto-tuning functions facilitate testing and adjustment. Fault diagnoses are easily performed. A dry-type input transformer is adopted.
Maro Techniek delivers MV drives and Soft starters together with MV motors engineered at customer specifications.
High quality MV drives with MTBF time of 500.000 hours.
High quality MV motors, build in Europe.
Dedicated engineers for onsite inspection, maintenance and commissioning, Stipel certificated (MV -Installation responsible)
Inspection on site worldwide with the latest equipment for reliable reporting in order to plan maintenance and secure the process.