Configured for variable-speed control of three-phase motors, the Omron 3G3JZ-A4007 (3G3JZ inverter) provides V/f-based motor control from a 400 V-class three-phase supply. The unit is rated for motors up to 0.75 kW and provides a rated output current of 2.5 A.

Model Identification

The model designation separates the 3G3JZ series, enclosure type, voltage class, and applicable motor capacity. Omron documentation identifies the A4007 as a panel-mounting model with an IP20 minimum enclosure structure and three-phase AC400 V class input.

Hardware Specifications

The 3G3JZ-A4007 has a rated output current of 2.5 A. The documented 3G3JZ-A4007 installation dimensions fall within the 72 x 135.7 x 174 mm frame group.

Industrial Drive and Communication Characteristics

The 3G3JZ series uses V/f control as its primary motor-control method. The A4007 variant is intended for three-phase 400 V-class power systems and is matched to motors up to 0.75 kW.

Standard RS485 communication permits connection to a PLC or host controller. The documentation identifies RS485 as a standard interface for control and monitoring applications.

The inverter also provides six multifunction input terminals. Parameter-based operation can be used for frequency and command control without requiring every operating function to be hardwired.

The adjustable carrier frequency range is 2 to 15 kHz. A torque-boost function can provide more than 150% torque at 3 Hz under the specified operating conditions.

Ordering Information

• 1 x Omron 3G3JZ-A4007 AC Inverter
• 1 x Safety Precautions documentation, where supplied with the unit
• Mounting screws and installation hardware are not identified as standard supplied accessories and should be provided by the installer.
• External braking or other optional equipment is not included unless separately specified.

Installation and Wiring

• Mount the inverter vertically with the nameplate orientation readable from the front.
• Maintain at least 120 mm clearance above and below the inverter for normal heat dissipation.
• Maintain at least 50 mm lateral spacing for normal mounting conditions.
• For close mounting, the allowable operating temperature is reduced to -10 to +40 deg C.
• Install the unit in a clean location without excessive oil mist, dust, metal particles, or water.
• If the surrounding environment contains floating contaminants, use a suitable enclosed control panel.
• Do not mount the inverter on combustible materials.
• Connect the three-phase input to R/L1, S/L2, and T/L3.
• Connect motor output terminals to U/T1, V/T2, and W/T3.
• Use an appropriate protective circuit breaker for the inverter supply.
• For control wiring, use shielded cable where required and terminate the shield according to the installation manual.
• Keep control wiring separated from high-current motor and power wiring to reduce electrical interference.

The documented installation requirements specify vertical mounting and minimum heat-dissipation clearances for the A4004 to A4007 400 V models.

Frequently Asked Questions

• What motor rating is specified for the 3G3JZ-A4007?

  The maximum applicable motor capacity is 0.75 kW. The rated inverter output current is 2.5 A.

• What input supply does the A4007 require?

  It is the three-phase 400 V class version. Published electrical data specifies approximately 380 to 480 V AC at 50/60 Hz.

• What control method does this inverter use?

  The 3G3JZ series is based on V/f control. Torque boost is available for low-frequency motor operation.

• Does the inverter have RS485 communication?

  Yes. RS485 is provided as a standard communication interface and can be used for PLC or host-controller communication.

• What is the rated output current?

  The specified rated output current for the 3G3JZ-A4007 is 2.5 A. This value should be considered when matching the inverter to the motor load.

• What is the operating temperature range?

  Normal panel mounting permits -10 to +50 deg C. Close mounting reduces the specified range to -10 to +40 deg C.

• What mounting clearance is required?

  The documented installation arrangement requires at least 120 mm above and below the unit and at least 50 mm lateral clearance under normal mounting conditions.

• Is the A4007 fan-cooled?

  The 0.75 kW A4007 is identified as a self-cooling model without a cooling fan. Ventilation clearance must therefore be maintained around the enclosure.