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SJ700D-3 series succeed the SJ700-2 series with the additional and enhanced features.
High starting torque of 200% or greater at 0.3 Hz
Hitachi original 0Hz Domain sensorless vector control
Keep 150% * torque at 0Hz speed signal Crane applications require high torque at starting
Over current & voltage suppress function
Higher internal calculation speed* improve current control performance Over-current suppress and Over-voltage suppress function avoid inverter trip during acceleration and deceleration period.
Inverter control by Built-in Programming function
Simple sequence operation is realized by downloading to an inverter the program created by programming soft EzSQ.
It is also possible to automatic speed control according to a load situation like a swift lift function for crane or a conveyor, and to operate.
Since an external circuit can be simplified, a control board is made small and a cost cut can be aimed at.
SJ700D can perform 5 tasks independent. Therefore, by separating the duplicated code as loops different tasks, overall execution is faster.
Built-in EMC Filter
Cost and space reduction compared with external EMC Filter.
Reduces electromagnetic noise.
Brake circuit up to 22kW
Cost and Space reduction compared with external Braking Controller
Easy-removable construction for maintenance.
Field replacement of cooling fan(s) and DC bus capacitor can be accomplished in a fraction of the time.
Cooling fanON/OFF control provides longer life.
Using Logic terminal move to SJ700/SJ700D Series without wiring change.
Read SJ300 Parameter by WOP remote operator and write them in to SJ700/SJ700D Series
|Series||Input terminals||Output terminals|
(Open collector outputs)
Long life time components
Design lifetime 10 Years or more Dc bus capacitor & Cooling Fan.
Cooling Fan ON/OFF control lead more longer life time
Life time warning function.
Avoid trouble before the malfunction by lifetime Warning signal.
The monitor of the temperature rise of a Dc bus capacitor, cooling fan degradation degree, a cooling fin, and a motor can be carried out.
Replace the components before the malfunction.
User selection of Parameter functions
Data comparison function
A display of only the parameter changed from the default is possible.
User selected function
Indication User setting 12 Parameters as U001-U012.
Basic mode (default)
Indication Basic Parameter for common used Parameters.
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Input voltage 240V for 200V class and 480V for 400V class as standard.
Micro Surge Voltage suppress function
Hitachi original PWM control suppressing Motor terminal voltage less than 2 times of INV\ DC voltage E.Lower than Hitachi motor Max. insulation voltage (1,250V) (during regenerating operation increase the DC bus voltage may over motor max. insulation voltage)
EU RoHS compliant
EU RoHS compliant by restricting to use hazardous substances.
(except solder in power module)
Improvement of environment
Varnish coating of internal PC board & plating of main circuit copper bus bar as standard.