1) Dual Rating
- SJ700D can be used for both heavy and normal duty. One-frame-size smaller SJ700D may be applicable for variable torque applications
2) Induction Motor & Permanent Magnetic Motor Control with One Inverter
- The SJ700D series inverter can drive both induction motors (IM) and permanent magnetic motors (PM).
3) High Starting Torque, Powerful Drive and Easy Setting
- 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
*(1) 150% torque in case 1 frame big inverter capacity of motor
4) Trip Avoidance Function
- Over current & voltage suppress function
- Higher internal calculation speed* improve current control performance avoid inverter trip during acceleration and deceleration period.
5) Programming [EzSQ: Easy Sequence] Function
- Inverter control by built-in programming function
- Simple sequence operation is realized by downloading to an inverter the program created by programming soft EzSQ.
- Possibility of automatic speed control according to a load situation like a swift lift function for crane or a conveyor, and to operate.
6) Internal Option
- 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 to external braking controller
7) Ease of Maintenance
- 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 fan ON/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
8) Long Life Time Components & Lifetime Warning Function
- 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
*Ambient temperature : Average 40 deg C (no corrosive gasses oil mist or dust) Design lifetime is calculation and out of guaranty.
Life time warning function.
- Avoid trouble before the malfunction by lifetime warning signal
- Replace the components before the malfunction
9) Easy Operation
- 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
10) Network Compatibility
- The port corresponding to RS-485 Modbus-RTU is equipped as standard.
- The communication speed is available up to 115.2kbps.
- SJ700/SJ700D Series can communicate with DeviceNet PROFIBUS-DP with communication options.
11) Global Standards
- Conformity to global standards. CE, UL, c-UL, C-Tick approvals.
Logic input & output Terminal apply sink & source logic.
- Wide Input power voltage range.
- Input voltage 240V for 200V class and 480V for 400V class as standard.
12) Environmental Friendliness
- 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 by restricting to use hazardous substances. (except solder in power module)
- Varnish coating of internal PC board & plating of main circuit copper bus bar as standard.
13) 5-Line LCD Operator (Optional : WOP)
- 5-Line LCD operator
- Real time clock built in
- 4 sets of used parameter configurations can be saved and transferred.
- Two color backlight that distinguish trip status.
- User selectable content for display.