Jectse AT904-7.5KW Variable Frequency Drive User Manual

1. Kupu Whakataki

This manual provides essential information for the safe and efficient operation of the Jectse AT904-7.5KW Variable Frequency Drive (VFD). This device is designed to control the speed of three-phase AC motors by varying the frequency and voltage of the power supplied to the motor. Please read this manual thoroughly before installation, operation, or maintenance to ensure proper use and prevent potential hazards.

2. Nga korero haumaru

WARNING: Improper installation or operation can lead to serious injury or death. Only qualified personnel should install, operate, and maintain this equipment.

Always disconnect power before performing any wiring, maintenance, or inspection.
Me whakarite te turanga tika o te VFD me te motuka.
Do not touch electrical components immediately after power-off; wait at least 10 minutes for capacitors to discharge.
Tiakihia te VFD mai i te makuku, te puehu, me te hau kino.
Manatokohia ko te voltage matches the VFD's specifications.
Do not connect the VFD output directly to a single-phase motor or a power grid.

3. Hua Neke Atuview

The Jectse AT904-7.5KW VFD is a robust and reliable frequency converter designed for various industrial applications requiring precise motor speed control. It features a durable ABS plastic shell and a user-friendly control panel.

Jectse AT904-7.5KW VFD connected to industrial motors and pumps — Image: The Jectse AT904-7.5KW Variable Frequency Drive shown in an industrial setting, connected to two large blue motors and pumps, demonstrating its application in controlling machinery.

Jectse AT904-7.5KW VFD with examples of industrial equipment it can control — Image: The Jectse AT904-7.5KW VFD unit displayed alongside smaller images of a motor, a chiller unit, and a large fan, illustrating the diverse range of industrial equipment it is designed to control.

Āhuatanga matua:

Tāuru/Putanga: Single-phase 220V AC input, three-phase 0-380V AC output.
Hototahi motika: Suitable for 7.5KW (10HP) three-phase motors.
Pūmautanga: Integrated filter and V/F open-loop control for stable performance.
Haumaru: Anti-trigger design for resilience against power grid interference, temperature fluctuations, and dust.
Mahinga: Delivers high torque, high accuracy, and wide speed regulation range.
Nga tono: Ideal for fans, pumps, air compressors, and other motor-driven equipment.

4. Whakatakotoranga

Whakatakotoranga	Uara
Momo Hua	Kaihuri Waea
Tauira	AT904-7.5KW
Whakauru Voltage	Single Phase 220V AC 50/60Hz
Putanga Voltage	Three Phase 0-380V AC 0-400Hz
Morahi Putanga Naianei	40A
Suitable Motor Power	7.5KW (10HP)
Tātari	Tātari Hanga-i roto
Aratau Mana	V/F Open Loop
Putanga Voltage Aratau Ture	Mana PWM
Rauemi ahua	Anga Kirihou ABS
Product Size (Approx.)	25 × 18 × 16.5 cm / 9.8 × 7.1 × 6.5 inches
Taumaha Tūemi	4.13 kg
Te kaha	Te Tino Pai
Puka Ngaru Huaputa	Wore Hine Pure
Auautanga	60 Hz
Nama Wahi	Jectsepsctoya7hk5178

5. Tatūnga

Careful installation is crucial for the performance and safety of the VFD. Ensure all safety precautions are followed.

5.1 Te Wetewete me te Tirotiro

Unpack the VFD and inspect it for any physical damage during transit.
Verify that all components listed in the package contents are present.

5.2 Whakapiki

Whakapuru poutū te VFD ki runga i te mata e kore e mura.
Ensure adequate ventilation space around the unit (minimum 10 cm on all sides) to prevent overheating.
Avoid mounting in direct sunlight, high humidity, or dusty environments.

5.3 Waea Whakahoahoa

Refer to the detailed wiring diagrams provided in the included user manual for specific connection points. The following are general guidelines:

Whakauru Hiko: Connect the single-phase 220V AC power supply to the designated input terminals (typically L1, L2).
Putanga Motika: Connect the three-phase 380V motor to the output terminals (typically U, V, W). Ensure the motor is rated for 380V and has a power rating less than or equal to 7.5KW.
Whakapapa: Connect the ground terminal of the VFD to a reliable earth ground.
Waea Mana: If external control (e.g., potentiometer, external switches) is used, connect according to the manual's control terminal diagrams.

Jectse AT904-7.5KW VFD showing product dimensions — Image: The Jectse AT904-7.5KW VFD from an elevated perspective, highlighting its compact size and dimensions, which are approximately 25 x 18 x 16.5 cm.

Jectse AT904-7.5KW VFD side vents for cooling — Whakaahua: He tata view of the side vents on the Jectse AT904-7.5KW VFD, indicating the cooling design for heat dissipation during operation.

6. Nga Tohutohu Whakahaere

The VFD allows for precise control over motor speed and direction. Familiarize yourself with the control panel before operation.

Jectse AT904-7.5KW VFD being used to control an air compressor — Image: The Jectse AT904-7.5KW VFD positioned in the foreground, with two individuals in the background working on an air compressor, illustrating the VFD's role in controlling industrial equipment.

Jectse AT904-7.5KW VFD with high torsion and accuracy features — Image: The Jectse AT904-7.5KW VFD unit, highlighting its capabilities for high torsion, accuracy, wide speed drive, low noise, and low electromagnetic interference, crucial for industrial applications.

6.1 Nga Mahi Paewhiri Mana

Jectse AT904-7.5KW VFD control panel with buttons and display — Image: A close-up of the Jectse AT904-7.5KW VFD's control panel, showing the digital display, rotary knob, and various control buttons for operation, programming, and status indication.

Pātene RUN: Ka timata te mahi motuka.
Pātene KATI: Ka whakamutu i te mahi a te motuka.
JOG Button: For momentary or step-by-step operation.
Pātene PRG: Enters programming mode to adjust parameters.
ENT Button: Ka whakaū i ngā kōwhiringa, i ngā huringa tawhā rānei.
Pere Runga/Raro: Adjust frequency, speed, or navigate menu options.
Puku Hurihuri: Provides fine adjustment for frequency or other parameters.

6.2 Mahi Taketake

Whakahiko: Ensure all wiring is correct and secure, then apply power to the VFD.
Tatūnga Tawhā: If necessary, enter programming mode (PRG) to set motor parameters (e.g., rated frequency, maximum frequency, acceleration/deceleration times) according to your motor and application requirements. Refer to the detailed parameter list in the full user manual.
Tīmata Motini: Pehia te RERE pātene ki te timata i te motini.
Whakarite Tere: Use the Up/Down arrows or the rotary knob to adjust the motor speed (frequency).
Kati Motini: Pehia te KATI patene hei whakamutu i te motini.
Hurihuri Whakamuri: The VFD supports forward and reverse rotation. Specific instructions for changing direction are typically found in the parameter settings or via dedicated control terminals, as detailed in the comprehensive manual.

7. Tiaki

Mā te tiaki auau ka roa te ora me te mahi pono o tō VFD.

Te horoi: Horoia te taha waho me ngā tara whakamatao o te VFD i ia wā, i ia wā, hei ārai i te kohikohinga puehu, ka ārai pea i te marara o te wera. Whakamahia he kakahu ngohengohe, maroke. Kaua e whakamahi i ngā wai horoi.
Tirohanga Kaiwhai: Check the cooling fan for proper operation and ensure it is free from obstructions.
Te Kaha Kapeka: Periodically check all wiring terminals for tightness. Loose connections can cause overheating and malfunction.
Taki Taiao: Me whakarite kia noho tonu te taiao whakahaere i roto i nga awhe pāmahana me te makuku.

Jectse AT904-7.5KW VFD top cooling fan — Whakaahua: He taipitopito view of the top cooling fan on the Jectse AT904-7.5KW VFD, emphasizing its role in maintaining optimal operating temperature.

8. Te Raru

This section provides basic troubleshooting steps for common issues. For complex problems, consult a qualified technician or contact customer support.

Raruraru	Take pea	Rongoā
Karekau te VFD e kaha ana	No input power; incorrect wiring	Check power supply and input wiring. Ensure circuit breaker is on.
E kore e timata te motuka	Incorrect motor wiring; VFD fault; parameter settings incorrect	Verify motor wiring (U, V, W). Check VFD display for error codes. Review motor parameters.
Kāore i te pumau te tere o te motuka	Load fluctuations; incorrect V/F curve setting	Check motor load. Adjust V/F curve or other speed control parameters.
Overcurrent/Overload fault	Motor overload; short circuit in motor wiring	Reduce motor load. Inspect motor and wiring for short circuits. Check motor parameters.
Whakawhanatage/Irarotage te he	Whakauru voltage outside range; regenerative braking issue	Check input power supply voltage. Consider adding a braking resistor if applicable.

9. Pūtāhui me te Tautoko

Jectse products are manufactured to high-quality standards. For warranty information, please refer to the warranty card included with your product or contact your local distributor.

Tautoko Kiritaki:

If you encounter any issues or have questions not covered in this manual, please contact Jectse customer support or your authorized dealer. When contacting support, please have your product model (AT904-7.5KW) and purchase details ready.