Inverter, 380-480 volt, 3 phase, 7.5 HP, 12 Amps
MODEL NO. SJ700-055HFU2/E, SJ700-055HFUF2
Hitachi SJ700 Series VFDs reasserts its technological leadership with an improved sensor-less vector (SLV) control algorithm that enables the SJ700 to develop more than 200% starting torque at 0.3 Hz. The SJ700 can develop 150% torque at 0 Hz, which is ideal for vertical lift applications, using Hitachi’s unique “0 Hz Domain” open-loop control mode.
The SJ700 also incorporates true servo-like position control, offering a low-cost motion control solution. Mated with a general-purpose induction motor with an encoder, the SJ700 is given a position command, speed command, and acceleration/deceleration times. The shaft moves from position A to position B following the defined profile and then maintain the shaft in servo lock status.
Hitachi has also greatly simplified the auto-tuning process, making commissioning trouble-free. Enhancement in the SJ700 is Hitachi’s EzSQ (Easy Sequence) built in programming function. It is similar to having a PLC built into the inverter! In many cases, the need for a separate PLC can be eliminated. The program is developed on a PC and then downloaded to the inverter using the simple to use software provided at no charge.
- Easy operation and setup by removable keypad
- Open-loop or closed-loop (with optional SJ-FB)
- High starting torque – 200% at 0.3 Hz
- Advanced trip avoidance functions
- EzSQ – built-in PLC-like programming function
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Hitachi NEMA3R/NEMA12 Pre-Engineered Panels include features and benefits:
Pre-engineered models and defined popular options for quick delivery. 7.5 to 150 hp defined models; available up to 600 hp on a quotation basis. Three levels (BASE, STANDARD & BYPASS) with defined options for ease of ordering, simple installation & commissioning. BASE model includes NEMA 3R enclosure, AC input line reactor, Hitachi VFD, thermostatically controlled fans, air filters and terminal blocks for user connections. STANDARD model adds input power disconnect, input fusing, VFD keypad mounted on second inner door. BYPASS model adds 2-contactor bypass arrangement with drive/bypass selector switch.
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