Variable Speed Drive for HVAC and Building Automation Applications

The Z1000 Variable Speed Drive from Yaskawa is designed for building automation applications such as fans, pumps and cooling towers through 500 HP. Its features begin with an easy-to-read LCD operator with Hand-Off-Auto functions. An internal real-time clock with time /date stamping and timer controls allows for speed variations without the need for external controls. A built-in 5 percent line impedance reduces input harmonic distortion, while a 5 kHz carrier frequency with dynamic noise control provides quiet motor operation. An on-board EMI/RFI filter compliant with IEC 61800-3 minimizes interference of surrounding equipment. All Z1000 drives also feature embedded BACnet communications (BTL certified), along with Modbus/Memobus. Applications macros are available to facilitate quick and easy setup.