1. Define the duty
Provide motor nameplates, supply voltage and frequency, normal and peak current, speed range, acceleration time, braking cycle and environmental conditions. For a retrofit, include the existing drive model and electrical drawings.
ABOUT INOMAX
Project Collaboration
Application evaluation, technical scope and delivery coordination for industrial projects.
PROJECT COLLABORATION
Industrial VFD projects: from application review to acceptance.
A successful drive project starts with a documented operating duty. We evaluate the motor, process, power supply and existing controls before recommending a drive or cabinet configuration.
2. Review the architecture
Compare a conventional rectifier, an active front end (AFE), braking resistors or a common DC bus against the actual load cycle. Define cooling, line and output reactors, filters, feedback and communications.
3. Agree delivery and testing
Confirm the scope of supply, drawings, interfaces, factory acceptance checks, documentation, spare parts and site commissioning responsibilities before production.
Replacing an existing industrial drive
We assess replacement feasibility using the original equipment data and the complete machine requirements. Matching motor power alone is insufficient: overload current, control mode, encoder signals, PLC communication, brake sequencing, mechanical dimensions and cooling connections also need review. A replacement may require parameter changes, cabinet modifications or control-system engineering.
Evidence from published applications
- Regenerative AC drives for an Indonesian steel mill → — multi-motor operation and DC-to-AC modernization.
- Liquid-cooled marine drive retrofit → — cabinet layout, cooling and retrofit interfaces.
- 690 V regenerative mine-hoist drive → — acceleration, braking and low-speed duty.
Send project information to info@inomaxtechnology.com. Include any mandatory certificates or functional-safety requirements at the enquiry stage.