AC Drive
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- In detail
- Country of manufactureIndia
AC Drive
This amazing AC drive is the ultimate performance solution with increased speed and torque response to provide servo-like performance from an induction motor. In addition, the G7 drive includes the world's first Inverter architecture that eliminates or minimizes the installation problems associated with IGBT switching on 480 volt systems and protects the entire motor-drive system.
G7 drive 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 3-Level architecture can eliminate peripheral components typically required to solve installation problems sometimes encountered on 480 volt systems. The G7 allows motor operation at very long cable lengths, meeting NEMA MG1 Part 31, with peak voltage being 30% less than conventional. With motor bearing current being typically 50% less than standard inverters, the G7 provides four times the motor bearing life. Audible motor noise on the 480 volt G7 drive is 5-10 dB (20%) less than the prior generation drive, even when operating at half the carrier frequency. Common mode current is half that of conventional drives. The G7 power section includes built-in bus choke (most ratings), 12-pulse input capability (most ratings), common DC bus capability, and regeneration options.
Performance Features
- Ratings: 0.5 to 150 HP, 240 VAC
0.5 to 500 HP, 480 VAC - Overload capacity: Heavy duty, 150% for 1 minute, 200% peak
- Starting torque: 150% at frequency;
1.0Hz (V/f), 0.5Hz (open loop vector), 0.0Hz (closed loop vector) - Output frequency: 0.01 to 400 Hz
- Speed control range:
40:1 (V/f), 200:1 (open loop vector), 1000:1 (closed loop vector) - Speed regulation:
1.0% (V/f), 0.2% (open loop vector),
0.01% (closed loop vector) - Speed response: 60 Hz
- Torque limit (four quadrant)
- Electronic motor overload (UL 508C)
- Over-torque / under-torque detection
- Phase-to-phase and ground fault short circuit protection
- Motor thermistor input.
- UL, cUL, and CE listed
- MTBF: Exceeds 28 years.
- UL, cUL, and CE listed
- MTBF: Exceeds 28 years