Hitachi's L700 Series Industrial AC Variable Frequency Drives incorporate a sensorless vector control algorithm

Hitachi America, Industrial Components and Equipment Division, has announced the introduction of the L700 Series of Industrial AC Variable Frequency Drives. The series incorporates the sensorless vector (SLV) control algorithm that was first developed for the SJ700 series. This allows the L700 to develop 150% torque at 0.5 Hz. Hitachi’s EzSQ (Easy Sequence) built-in programming function is designed to provide the functionality of a PLC built into the inverter.
The L700 Industrial AC Variable Frequency Drive offers micro-surge voltage suppression, trip avoidance functions, configurable sink/source logic on digital inputs, built-in dynamic braking circuit in models up to 30 hp (22 kW) and a built-in EMC filter in models up to 200 hp (160 kW).
The L700 features built-in RS485 Modbus/RTU communication and options for other communications networks, such as Ethernet Modbus/TCP, DeviceNet, Profibus and LonWorks. The L700 can be configured via the front-mounted keypad or using Hitachi’s ProDrive PC-based software. The L700 carries CE, UL, cUL and c-Tick marks, and is RoHS compliant.
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