Tips for Buying a Used Frequency Converter for Electric Motors
When buying a frequency converter for an electric motor, it is important to ensure its functionality and ability to perform the functions inherent to an electrical element. The main task is to check compliance with the device's technical specifications. To determine if there are any malfunctions, a check should be carried out, which is divided into two main parts:
- Passive check - inspection of the main elements of the device.
- Active check - testing the operation of the unit during functioning.
Passive Check
For external inspection, it is necessary to perform the following actions:
- Examine the casing for deformations.
- Check the presence and condition of bolts and other fasteners using a screwdriver or other tools for signs of loosening.
- Evaluate the operation of the fans and their functionality.
Active Check
When buying a used frequency converter, for example, from the brand "Bosch", it is important to conduct an active check, which includes the following steps:
- Test run to identify faults in the contact group and monitor with a sensor.
- Check the operation of the keypad and the display of the input information.
- Assess the correctness of operation when connecting the electric motor, particularly for vibration, smooth start, and stop.
- Check the ability to select operational modes.
- Conduct a test start of the motor from the operator's panel under zero load.
Advantages and Disadvantages of Used Frequency Converters
Even if it is hard to decide whether to buy a new or used device, it is worth noting the following positive aspects of used frequency converters:
- Compliance of the device control with the necessary technical conditions.
- Minimal cost, which depends on the usage period of the device.
However, there are also some disadvantages, particularly wear of the elements, which can affect the overall lifespan of the frequency converter and the efficiency of the motor and drives. Therefore, the decision to purchase a specific converter depends on the buyer and the operating conditions of the system it regulates.
Why Choose Our Online Store?
Among the numerous online stores of electrical equipment, we recommend purchasing your desired product from us. By visiting our site, you can purchase a frequency converter for an electric drive unit at an affordable price in your city.