Based on the fact that the companies of the VIC group have the status of engineering companies, we do not lock ourselves in our activities only within the framework of a trade organization, but also provide services at the stage of the life cycle of drives associated with its maintenance and repair.
With regard to the repair of Mentor MP drives, our company has many years of experience, which is the sum of the efforts of employees of its various departments (departments).
Engineers of the technical department:
- they will perform an inspection of your technological equipment in order to identify malfunctions, the causes of their occurrence, and develop recommendations for preventing damage during further operation of the drive,
- they will provide qualified repair of the failed drive in terms of both hardware and software,
- they will provide technical advice to the client according to the correct operating modes, preventive measures that extend the terms of uninterrupted operation of their equipment,
- they will help you choose and purchase the client of the means of connection equipmentI am connected to a computer (interface converters and software for them), which will facilitate and speed up the Customer's service personnel the process of putting equipment into operation, configuring it, diagnosing, troubleshooting.
To ensure a prompt response to accidents, VIC companies maintain a warehouse of components purchased at discounted (preferential) prices from manufacturers of products of which we are dealers.
Specialists of the foreign economic activity department for competitive supplier cards of European brands will select and deliver the required spare parts in the shortest possible time to replace those that have failed.
An analysis of the causes of failure of Mentor MP drives indicates a number of points that the Consumer should pay special attention to in order to prevent failures.
This is, firstly, the installation of high-speed, so-called "semiconductor" fuses in the input circuits of the 3-phase power supply, and in the reversible (with R at the end of the drive marking) and output circuits of the armature. The excitation circuits are already protected by the Manufacturer at the assembly stage of the drive. The task of high-speed fuses is to protect against overcurrents, short circuits and overloads of expensive power thyristor (e.g., MCC type) and thyristor-diode (VUO type) modules of Mentor MP drives. They are marked with the letter code aR and a special symbol showing a fuse and diode connected in series.
High-speed fuses for Mentor MP drives
Due to the use of chemically pure silver (fusible element), calibrated quartz sand as a filler and special ceramics (housing) in their production, high-speed fuses are much more expensive than conventional ones, and therefore Consumers often neglect the Manufacturer's instructions on their mandatory use. But at the same time, the Consumer should know that the absence of appropriate high-speed fuses in the above-mentioned drive circuits will entail the Manufacturer's refusal of its warranty obligations to the Consumer in the event of any force majeure circumstances leading to the failure of the power thyristors and the power thyristor control board (Power Board).
Recommendations on the selection of high-speed fuses for specific models of the Mentor MP drive are given in the User's Manual and can be downloaded here.
The failed MCC44-16IO1B thyristor module of the Mentor MP45A4R drive armature circuit (left) and the VVZ40-16IO1 thyristor-diode module of the Mentor MP75A4R drive excitation circuit (right)
The failed Mentor MP45A4R drive power boards (left) and Mentor MP700A4 (right)
In addition, our engineers who repair Mentor MP drives have to deal with the fact that often the Consumer does not pay due attention to cleaning the drives from various kinds of contamination that occurs during their operation.
Our experts recommend thorough cleaning of the drives once a year, and in particularly polluted workshop conditions – at least once a quarter.
Technical specifications:
The failed thyristor module MSS44-16IO1B of the Mentor MP45A4R drive armature circuit
