Hitachi SJ-P1 Inverters

Hitachi frequency inverter SJ-P1 series is easy to use

ProDriveNext Software Easy to use programming software allows user-friendly and intuitive operation:
- Online monitoring of all parameters and I/O terminal status
- Parameter conversion between different series
- Faster parameter download/ upload with USB communication
- Windows XP, 7, 8,10 compatible

Easy operation:
- LED control
- RS422 port
- Micro USB port

VOP colour LCD operator:
- 12 languages available
- Colour TFT display
- Real time clock built-in
- Parameter and EzSQ programming data copy function

Password function:
Helps to ensure that parameters remain secured and safeguarded.


Network compatibility & external ports:
The SJ-P1 Series is particularly suitable for easy integration into various networks using optional fieldbus modules.
- RS485-Modbus (Built-in)
- RS422 port (Built-in)
- Ethernet
- EtherCAT
- ProfiNET
- Profibus-DP

Option slots:
Hitachi original cassette option for flexible use.
- Up to 3 options can be used simultaneously
- Easy access from the inverter front
- Various fieldbus and I/O options available

Option modules:
- Ethernet
- EtherCAT
- Profibus-DP
- ProfiNET
- Feedback
- Safety
- Analog input and output
- Relay output

EzCOM Inverter-to-Inverter communication:
SJ-P1 also gives the option to communicate by using Inverter-to-Inverter connections without a PLC or PC.

Hitachi drive SJ-P1 series is Flexible & User-friendly

It is easy to place the cooling fans to the outside of the cabinet since the L-shaped brackets are separate parts.

Fulfilling lifetime prediction functions:
- Electrolytic capacitor of power circuit
- Cooling fan

Improved efficiency with 24VDC supply

In addition to normal power supply (R0, T0), external 24VDC control power can also be applied as standard. Parameter setting is also available if the main power is turned off meaning operational efficiency is increased and standby power is reduced. It will also contribute to energy savings. Connecting to the PLC and settings via PC configuration software are also available.

Quick diagnose of failure occurrence 

P1 can also store internal data to the internal memory on a continuous basis. It can also upload data to the PC when an error occurs – making rapid diagnosis possible.

It is easy to customize Hitachi frequency inverter SJ-P1 series with configuration software

PC software:
- The configuration software ‘ProDriveNext’ easily enables the user to set up, monitor and diagnose the device.
Customization of functions can be easily achieved
- The existing functions can be modified by using a ‘BASIC’-like programming language.

Safety & Safe Operation

Certified “functional safety” international standard:
- Certified functional safety
- Third party certified electrical safety
- Also in compliance EN61508, IEC/EN/UL61800-5-2 SIL3
- STO as functional safety standard
- IEC/EN60204-1 Stop Cat.0
- EN/ISO13849-1 Cat.3, PLe
- IEC61508, IEC/EN/UL61800-5-2, IEC/EN62061 SIL3 STO
- SS1, SLS and others are available with slot-in option card

Hitachi drive SJ-P1 series has Trip avoidance functions

Minimum time deceleration function, over-current suppression and DC bus AVR functions are included as standard.
 These functions increase the robustness of the product and help to avoid unnecessary tripping. Improved torque limiting/ current limiting functionality enables load restrictions to be applied in order to protect machinery and equipment.

Hitachi drive SJ-P1 series Smooth Operation and Precision

“Smooth operation” can be easily achieved High starting torque from the low speed area supports the smooth drive of heavy load. Decreasing overshoot and undershoot contributes to smooth and stabilized operation with less shock.

Steady operation for crane, lift, transport etc.

Trip can be prevented by smooth driving to support steady operation of crane and conveyer for better productivity.

“High speed rotation” for precision

590Hz operation is available for precise metal processing. PM motor is also available up to 400Hz.

Hitachi frequency inverter SJ-P1 series induction motor & permanent magnet motor can be controlled with one inverter series

The SJ-P1 inverter can be used to drive both induction motors (IM) and permanent magnetic motors (PM). PM motors are energy efficient and make effective use of available space. Thanks to the over-current trip level setting, demagnetization of PM motors can be suppressed.

Multi-rating to support space and cost savings

Triple-rating for IM motor for various applications is available. Also dual-rate for PM motor control can be selected. Multi-rating helps to save space and costs.

Intuitive and easy-to-use TFT LCD operator

Built-in BRD circuit
- Built-in braking resistor control circuit is available as standard in all models up to 37KW (resistor optional).

EzCOM (peer-to-peer communication)
- SJ-P1 supports peer-to-peer communication between multiple inverters using the built-in RS485 port. In this configuration one administrator inverter is required in the network whilst the other inverters act as master or slave.

Hitachi inverter SJ-P1 series is eco-friendly

RoHS compliant
- The SJ Series, Type P1 meets EU RoHS requirements.

Endurance in severe conditions
- Vanish coating of the internal PC board ensures an improved endurance to certain severe conditions (logic PCB and I/F PCB are excluded).

Long life components
- The cooling fans and built-in capacitors have an estimated design lifetime of 10 years*. By using the ON/OFF control function the lifetime can be extended.
*10 years is a design lifetime based on calculation, not guaranteed