Yaskawa AC Drive G7 Adjustable Speed Drives

AC Drive G7 performance makes it the ideal drive for high performance speed, torque, or position control applications. Several control modes are provided. In open loop vector mode, the latest flux observer algorithms extend speed range and provide maximum starting torque.
In closed loop vector mode, 0.01% speed regulation and 1000:1 control range can be achieved. Zero-servo capability provides position control at zero speed.

The G7 drive has the world’s first 480V 3-level inverter architecture for total system protection. This patented design can eliminate peripheral components typically required to solve installation problems. The G7 allows motor operation at very long cable lengths, meeting NEMA MG1 Part 31, with peak voltage being 30% less than conventional drives. With motor bearing current being typically 50% less than standard drives, the G7 provides four times the motor bearing life. Audible motor noise on the 480V G7 drive is 5-10dB (20%) less than the prior generation drive, even when operating at half the carrier frequency. Common mode current is half that of competitor drives.

Protective Features

• Torque limit (four quadrant)
• Electronic motor overload (UL 508C)
• Over-torque / under-torque detection
• Phase-to-phase and ground fault short circuit protection
• Over-current, over-voltage, and overtemperature protection
• Input / output phase loss protection
• Optically-isolated controls
• DC bus charge indicator
• Motor thermistor input

Yaskawa AC Drive G7 Adjustable Speed Drives

Models & Ratings