Hitachi America, Ltd.: Advanced industrial AC variable frequency drives

This allows the L700 to develop 150% torque at 0.5 Hz. The L700 also has a number of features built in that make the commissioning process quick and trouble-free.  The company’s EzSQ (Easy Sequence) built-in programming function actually provides the functionality of a PLC built into the inverter. The program is developed on a PC and then downloaded to the inverter, using the simple-to-use EzSQ software provided at no charge.  The L700 also features the patented micro-surge voltage suppression (to protect the motor winding insulation), advanced trip avoidance functions, configurable sink/source logic on digital inputs, built-in dynamic braking circuit in models up to 30 hp (22 kW), a built-in EMC filter in models up to 200 hp (160 kW), and much more.