AC690+ Variable Frequency Drives
The AC690+ Variable Frequency Drives series is a single range of AC drives designed to meet the requirements of all variable speed applications from simple single motor speed control through to the most sophisticated integrated multi-drive systems. The heart of the AC690+ is a highly advanced 32-bit microprocessor-based motor control model. This provides an exceptional dynamic performance platform to which can be added a host of communications and control options, enabling you to tailor the drives to meet your exact requirements. The AC690+ is available in 380-500V 3-phase 0.75 to 1000kW and 220V-240V 0.75 to 55kW.
The AC690+ can be user configured for 3 different modes of operation:
• Open-loop (volts/frequency) control This mode is ideal for basic motor speed control, or multiple motors driven in parallel. The quick set-up menu and plain language display ensures the quickest and easiest, trouble free start up.
• Sensorless vector control High starting torque and tight speed regulation is provided by a sophisticated MRAS (Model Reference Adaptive System) motor control strategy. MRAS provides accurate speed simulation (without the need for any speed measuring transducer) by continually modelling the motor.
• Closed-loop vector control Full closed-loop flux vector performance can be achieved with the AC690+ by simply adding an encoder feedback ‘technology box’. This provides 100% continuous full load standstill torque plus a highly dynamic speed loop (up to 45 Hz bandwidth) ; more than sufficient for the most demanding of applications.
Advantages:
• Pre-programmed application macros
• Open standard fieldbus communications
• Programming identical to DC590+ DC drives
• Mechanical protection options to suit all environments : IP 20 – IP40/NEMA 1 – IP54 – Through panel mounting
• Class B EMC filters
• Energy Saving (fast return on investment in pump and fan applications)
• Supplied in an enclosure for power ratings above 355kW
• Improved HVAC control
When starting a VFD motor project, In-Position Technologies engineers start by reviewing the key requirements to determine the optimum VFD for the job. They perform all necessary engineering calculations to make sure the VFD performs as required, within customer specification, and without unnecessary cost.
This includes:
• Motor torque, speed, and inertia matching
• Ensuring compatibility with the motor drive and available power
• Specifying the appropriate feedback device, encoder (incremental vs. absolute), resolver, etc…
• Verifying mounting compatibility, form factor checks, etc…
• Ensuring all necessary accessories are also specified
When ordering Parker AC690+ Variable Frequency Drives as a part of a full system, IP Tech engineers review the solution to ensure:
• All parts and accessories necessary for a complete working solution are included
• All components have been checked and verified to work together as a system
• The selected components will perform as required by the project specifications
