Overview
The WJ200 series AC variable speed drives are designed by Hitachi with both performance and user-friendliness in mind. These drives support voltages between 100-400VAC and have the option of single or three-phase output.
The WJ200 inverter drive features state-of-the-art circuitry and components to provide high performance. The housing footprint is exceptionally small, given the size of the corresponding motor. The Hitachi WJ200 product line includes more than a dozen inverter models to cover motor sizes from 1/8 horsepower to 20 horsepower, in either 240VAC or 480VAC power input versions.
One of the key features of the WJ200 series variable speed drives is the ability to operate with a starting torque above 200%. This feature is made possible thanks to the integrated auto-tuning function that enables easy sensorless vector control within the drive.
The WJ200 series also sees a major improvement in speed regulation at low speed where fluctuation is halved compared to its predecessor. The drives also feature new trip avoidance functions which prevent unnecessary tripping and offer protection to connected equipment.
With refined specifications and a broad range of operation, the WJ200 series is ideal for applications like air conditioning, compressed air, conveyors, extrusion process, irrigation, and dry cleaning machines.
System installers will find that the WJ200 series is remarkably easy to install. The operational sequence can be created with the Hitachi’s EzSQ software and downloaded to the WJ200 series variable speed drives via a PC.
Maintenance on the WJ200 series is aided by the display panel and the choice of parameters that can be shown. The variable speed drives are also designed with screwless terminal and can be installed side-by-side to maximize space usage.
The WJ200 series of variable speed drives are also designed with environmental concerns in mind. The drives meet RoHS requirements, which prevents the use of hazardous substances in electronics components.
Key features of the WJ200 Series
The design in Hitachi inverters overcomes many of the traditional trade-offs between speed, torque and efficiency.
- 200V and 400V class, 0.1 to 15kW inverters having dual rating
- US or EU versions available
- EzSQ (simple programming function) integrated
- Built-in RS485 MODBUS RTU as standard, other FieldBus optional
- New current suppressing function
- Sixteen programmable speed levels
- PID control adjusts motor speed automatically to maintain a process variable value
- Password protection to avoid unexpected parameter change
- High starting torque of 200% at 0.5Hz
- Continuous operation at 100% torque within a 1:10 speed range (6/60Hz / 5/50Hz) without motor derating.
- Fan has ON/OFF selection to provide longer life for cooling fan.
- High starting torque and dramatically improved speed stability with advanced sensorless vector control
- New and more effective trip avoidance functions, safe-stop function
- Simplified auto-tuning procedure (SLV)
- Can be used for heavy and normal duty.
- Easy setup and operation via standard integral keypad, optional enhanced keypad or via PC software
- Password function to prevent parameters or to hide some of all parameters
- Data comparison function: Display parameters changed from default setting
- Capable of driving permanent magnet (PMAC) as well as standard induction motors
- Dynamic braking transistor in all models
- Built in Easy Sequence (EzSQ) PLC-like functionality
- Simple position control capability
- Basic display: Display most frequently used parameters.
- Quick display: Display 32 user-selected parameters.
- Dual rated for CT/VT applications
- User-changed parameter display: Store automatically and display the parameters changed by the user (Up to 32 sets); can also be used as change history.
- Active parameter display: Display those parameters which are enabled.
WJ200 Series Features
WJ200-002LF - WJ200 Series Simple Positioning Control
The WJ200 series features a simple positioning control that can be activated where the feedback signal is used for positioning control operation. When the WJ200 series is in positioning control mode, the position counter starts increasing until the target position is achieved.
WJ200-002LF - WJ200 Series Induction motor & Permanent magnetic motor support.
Both induction motor and permanent magnetic motor are supported by the WJ200 series. No additional controllers are needed to drive permanent magnetic motor, thus making the WJ200 series a cost-saving solution.
WJ200-002LF - WJ200 Series Network Compatibility
The improved model of WJ200 series offers remote operation over the industrial standard Modbus-RTU protocol. Optional network Fieldbus module can be connected to the WJ200 series to enable communications protocol like Profibus, Profinet and Ethercat.
Drive Performance Features:
WJ200-002LF - Modes Of Operation:
- Open Loop Vector Control
- V / Hz (Constant or Variable)
- Torque Control
- Base Frequency Adjustable to Motor Specs
WJ200-002LF - Performance Features:
The WJ200 inverter drive features state-of-the-art circuitry and components to provide high performance. The housing footprint is exceptionally small, given the size of the corresponding motor. The Hitachi WJ200 product line includes more than a dozen inverter models to cover motor sizes from 1/8 horsepower to 20 horsepower, in either 240VAC or 480VAC power input versions.
The design in Hitachi inverters overcomes many of the traditional trade-offs between speed, torque and efficiency.
- 200V and 400V class, 0.1 to 15kW inverters having dual rating
- US or EU versions available
- EzSQ (simple programming function) integrated
- Built-in RS485 MODBUS RTU as standard, other FieldBus optional
- New current suppressing function
- Sixteen programmable speed levels
- PID control adjusts motor speed automatically to maintain a process variable value
- Password protection to avoid unexpected parameter change
- High starting torque of 200% at 0.5Hz
- Continuous operation at 100% torque within a 1:10 speed range (6/60Hz / 5/50Hz) without motor derating.
- Fan has ON/OFF selection to provide longer life for cooling fan.
WJ200-002LF - Control Terminals:
- Digital Inputs:
- 7 Programmable
- 2 Safe Stop
- 1 Motor Thermistor
- 1 Pulse Train (Max 2 kHz)
- 1 Pulse Train (Max 32 kHz)
- Digital Outputs:
- 1 Form C relay with 2 contacts
- 2 Open Collector
- Analog Inputs:
- 1 Voltage (0 - 10VDC) OR Current (4 - 20mA)
- Analog Outputs:
- 1 Voltage (0 - 10 VDC)
- 1 Pulse Train (0 - 10 VDC / Max 3.6 kHz)
- Serial Communications:
- 2-Wire RS-485 Modbus RTU protocol for programming, monitoring and controlling
- Other:
- Speed Potentiometer Power Supply
- Signal Common
- Internal 24 VDC Power Supply rated for 100 mA
WJ200-002LF - Control Specifications:
- 2.0 to 15 KHz carrier frequency
- 0.1 - 400 Hz Operation
- 0 - 3600 second acceleration / deceleration
- Linear and sigmoid accelleration / decleration
- 100% at 6 Hz starting torque
- 120% to 150% overload capacity
- 200% starting torque in open loop vector control
- DC braking
- 68 assignable input functions
- 48 assignable output functions
- Monitoring analog output
- Pulse train output
- Alarm output contact
WJ200-002LF - Protective Features:
- Over-current
- Over-voltage
- Under-voltage
- Overload
- Brake resistor overload
- CPU error
- Memory error
- External trip
- USP error
- Ground fault detection at power on
- Temperature error
- Internal communications error
- Drive error
- Thermistor error
- Brake error
- Safe stop
- Overload at low speed
- Modbus communications error
- Option error
- Encoder disconnection
- Speed excessive
- EzSQ command error
- EzSQ nesting error
- EzSQ execution error
- EzSQ user trip
WJ200-002LF - Popular Applications Include:
- Food Processing Machinery
- Packaging Machinery
- Material Handling Systems
- Conveyor Systems
- Pump Systems
- Fan Systems
- Milling Machines
- Hydraulic Systems
- HVAC Systems
- ... And many others!
WJ200-002LF - Drive Options:
- Integrated USB port for PC communication
- Digital remote operator keypad
- Integrated brake chopper
- EMC filter (footprint type C1) optional
- AC reactor
- DC reactor
WJ200-002LF - Global Standards:
- CE
- UL (North America)
- cUL (Canada)
- C-Tick (Australia / New Zealand)
WJ200-002LF - Environment:
- Altitude: 1,000 meters (3,300 feet)
- Ambient Temperature: -10 Degrees Celsius to 50 Degrees Celsius
- Storage Temperature: -20 Degrees Celsius to 65 Degrees Celsius
- Relative Humidity: 20% to 90% RH
WJ200 Series Other Features
WJ200-002LF - Various Versatile Functions
- Dual rating
- Watt-hour monitor
- Output monitoring
- Built-in BRD circuit
- EzCom
- Flexible Display Function
WJ200-002LF - General Specifications
- Protective housing : IP20
- Control method : Sinusoidal Pulse Width Modulation (PWM) control
- Carrier frequency : 2kHz to 15kHz (derating required depending on the model)
- Output frequency range : 0.1 to 400Hz
- Frequency accuracy
- Digital command: ±0.01% of the maximum frequency
- Analog command: ±0.2% of the maximum frequency (25°C ±10°C)
- Frequency setting resolution : Digital: 0.01Hz; Analog: max. frequency / 1000
- / Freq. characteristic
- V/f control (constant torque, reduced torque, free-V/ F): base freq. 30Hz – 400Hz adjustable,
- Sensorless vector control, Closed loop control with motor encoder feedback (only V/f control).
- Overload capacity : Dual rating: CT (Heavy duty): 60 sec. @150% | VT (Normal duty): 60 sec. @120%
- Acceleration / deceleration time : 01 to 3600 seconds, linear and S-curve accel / decel, second accel / decel setting available
- Starting torque : 200% @0.5Hz (sensorless vector control)
- DC braking : Variable operating frequency, time, and braking force
- Alarm output contac :t ON for inverter alarm (1c contacts, both normally open or closed available.)
WJ200-002LF - Input Signal
- Setting
- Operator panel :(1)(2) keys / Value settings
- External signal : 0 to 10 VDC (input impedance 10kΩ), 4 to 20mA (input impedance 100Ω), Potentiometer (1k to 2kΩ, 2W)
- Via network RS485 ModBus RTU, other network option
- FWD / REV run
- Operator panel : Run / Stop (Forward / Reverse run change by command)
- External signal : Forward run / stop, Reverse run / stop
- Via network : RS485 ModBus RTU, other network option
- Terminals : 7 terminals, sink / source changeable by a short bar
WJ200-002LF - Output Signal
- Monitor output (analog) : Output freq., output current, output torque, output voltage, input power, thermal load ratio, LAD freq., heat sink temperature, general output (EzSQ)
- Pulse train output (0 – 10VDC, 32kHz max.) :
- [PWM output] : Output freq., output current, output torque, output voltage, input power, thermal load ratio, LAD freq., heat sink temperature, general output (EzSQ)
- [Pulse train output] : Output frequency, output current, pulse train input monitor
WJ200-002LF - Operating environment
- Temperature : Operating (ambient): -10 to 50°C / Storage: -20 to 65°C
- Humidity : 20 to 90% humidity (non-condensing)
- Vibration : 5.9m/s2 (0.6G), 10 to 55 Hz
- Location : Altitude 1,000m or less, indoors (no corrosive gasses or dust)
WJ200-002LF - Options
- Remote operator unit
- cables for the units
- braking unit
- braking resistor
- AC reactor
- DC reactor
- EMC filter
