User Manual Variable Frequency Drive User Manual Chapter 2 Product-Information 2.5 Keyboard Tray Dimensions Diagram 2.5 Keyboard Tray Dimensions Diagram Inverter Structure C Series Tray Opening Size H Series Tray Opening Size Opening Size Image NEXT Explore these documents to learn more. Purchase high-performance vector frequency drives now. Table of Contents for the Variable Frequency Drive User Manual Frequently Asked Questions (FAQs) about Variable Frequency Drives 2.4 Product Selection Specification Table2.6 Daily Maintenance and Care of Variable Frequency Drives