Home » Blog » Variable frequency drive » Variable frequency drive daily maintenance
Variable frequency drive daily maintenance
For variable frequency drive in continuous operation, we take an external visual inspection for the VFD running state. Regular inspect variable frequency drive to see if there is running anomalies or not, we have following methods:
1) Ambient temperature is normal or not, VFD requires running within -10 ℃ ~ +40 ℃ range, around 25 ℃ is better;
2) The current, voltage, frequency and other data show on the VFD display panel is normal or not;
3) The characters on display panel is clear or not, is it loss characters;
4) Detect the variable frequency drive with a thermometer to see overheating or not;
5) The VFD fan is running properly or not, and cooling channel is free or not;
6) Is there alarm display or not during VFD operation;
7) Check AC input voltage exceeds the maximum allowed value or not., if the main circuit plus input voltage exceeds the limitation, it will damage the variable frequency drive circuit board even if the drive does not run.
1) Ambient temperature is normal or not, VFD requires running within -10 ℃ ~ +40 ℃ range, around 25 ℃ is better;
2) The current, voltage, frequency and other data show on the VFD display panel is normal or not;
3) The characters on display panel is clear or not, is it loss characters;
4) Detect the variable frequency drive with a thermometer to see overheating or not;
5) The VFD fan is running properly or not, and cooling channel is free or not;
6) Is there alarm display or not during VFD operation;
7) Check AC input voltage exceeds the maximum allowed value or not., if the main circuit plus input voltage exceeds the limitation, it will damage the variable frequency drive circuit board even if the drive does not run.
You may also like:
Actually, AC motor can be also applied with the used of AC Drive, Frequency Inverter. However, based on my actual encountered of almost different type of motors, from fractional size to medium voltage size, ...
Comparision about AC 4 quadrant drives and hydraulic couplers application for downhill conveyors.
1. Energy saving
4Q drives boast perfect energy saving goal, can reach high power factor up to1, with energy ...
Variable speed drive in China has nearly 20 years on the market, because of its good performance and considerable power saving effect, so in all walks of life in a very wide range of applications, so far has ...
To compete with the same applications with induction or PM machines with lower pole numbers, axial gap topologies generally require higher carrier frequencies in the variable speed drive that feed. This is to ...
What motor rating is used is determined by the amount of torque required to move the load. Horsepower does not move the load, torque moves the load. A 1-hp, 6-pole motor will develop 50% more torque than a ...
VSD blog: A deep observation of automation control industry, especially in AC motor variable speed drive for industrial motor controls. Hot Tags
Featured
7 months back I was involved in a harmonics evaluation study at Budweiser. This was one of many I've participated in over the past 20 years, basically because in facilities like ...
Most of variable speed drives are applying on high temperature fans, kiln head coal mill fans, kiln head surplus fans, raw mill circulating fans and so on. Two production lines ...
Variable speed drive application in purification system optimizes the system performance, improves purification effect, reduces power consumption greatly. According to related ...
The motor power factor does not make a big difference other than giving an idea of loading. In regards to the variable speed drive fixing power factor everyone is mostly correct. ...
A soft starter is a basic device which will ramp up the speed of your motor to full speed over a preset time, easing mechanical stress and also easing the high inrush currents ...
What's New
Variable Speed Drive Harmonics
Variable speed drive energy saving in cement industry
PLC and DAQ
Is it good to do preventive maintenance for variable speed drives
Does motor starts number affect motor life?
Variable speed drive for ID Fans in mining industry
Regenerative power frequency back to line power
Variable speed drive for axial-flow fans
Variable speed drive energy saving in cement industry
PLC and DAQ
Is it good to do preventive maintenance for variable speed drives
Does motor starts number affect motor life?
Variable speed drive for ID Fans in mining industry
Regenerative power frequency back to line power
Variable speed drive for axial-flow fans
