900E Series Variable Frequency Drive

Compared to ordinary general-purpose frequency converters on the market, the 900E Series Variable Frequency Drive outperforms in control precision and intelligent functions:

Dual-mode control, superior performance: Exclusively supports sensorless vector control (SVC) for synchronous motors, providing strong starting torque even at low speeds, with control precision far exceeding traditional V/F control frequency converters.

Intelligent tuning, one-click matching: Equipped with motor parameter self-detection function (static/dynamic identification), the frequency converter automatically identifies motor parameters, eliminating the need for tedious manual calculations and ensuring the drive system is always in optimal matching condition.

Built-in constant pressure water supply PID: No external controller is required; the built-in comprehensive PID logic directly enables sleep, wake-up, and water shortage protection functions for constant pressure water supply systems, significantly reducing system costs.

User-friendly interactive experience: Equipped with a multi-functional LED operation panel, supporting real-time monitoring of multiple parameters such as frequency, voltage, current, and power, and featuring automatic parameter switching display function, making operation and maintenance easier.

Comprehensive safety protection: Equipped with more than 20 fault detection functions, including inverter unit protection, overcurrent, overvoltage, undervoltage, phase loss, overheating, and short circuit to ground, ensuring the safety of equipment and personnel.

Product Technical Parameters

Product model naming rules

The 900 series frequency converters are named according to the following rules:

Variable frequency drive model table

Product Dimensions Table

Application industries and scenarios

The 900E Series Variable Frequency Drive, with its wide power range and powerful control performance, is widely used in the following fields:

Water Supply and HVAC: Constant pressure water supply systems, central air conditioning water pumps, cooling tower fans.

Industrial Manufacturing: CNC machine tools, textile machinery, printing and packaging equipment, plastics machinery.

Material Conveying: Conveyor belts, elevators, mixers.

Special Applications: Due to its support for synchronous motor control, it is particularly suitable for permanent magnet synchronous motor drive scenarios where energy efficiency and size are critical.

Installation and Usage Instructions

1. Mechanical Installation

Environmental Requirements: The installation environment temperature should be between -10°C and +50°C, humidity less than 90%RH (no condensation), and free from corrosive gases and conductive dust.

Space Requirements: To ensure heat dissipation, sufficient space should be reserved above and below the inverter (10cm above and 10cm below recommended), and ventilation gaps of at least 5cm should be left on both sides.

2. Electrical Connections

Main Circuit: Connect the input terminals (R/S/T) to the three-phase power supply, and the output terminals (U/V/W) to the motor. It is strictly forbidden to connect the power cord to the output terminals by mistake.

Control Circuit: Supports multiple signal inputs, including 0-10V analog signals (AI1), potentiometers, and external switch signals (DI1/DI2).

Grounding: The inverter's PE terminal must be reliably grounded.

3. Quick Commissioning Procedure

1). Parameter Reset: Set F0-31 = 1 to restore factory settings.

2). Motor Parameters: Set F0-00 (Power), F0-01 (Voltage), F0-02 (Current), F0-03 (Frequency), and F0-04 (Speed) according to the motor nameplate.

3). Control Mode: Set F3-00 = 2 to select synchronous motor vector control (SVC mode if needed).

4). Parameter Identification: Set F0-06 to perform static or dynamic parameter identification (for vector control).

5). Run Command: Set F0-19 to select the run channel (panel/terminal), and F0-20 to select the frequency source.

Packing List and Shipping Information

Packaging List:

o TES 900E Inverter Main Unit × 1

o Wall-mounted Control Panel (including connecting cable) × 1

o User Manual (including warranty card) × 1

o Installation Accessories (screws/shiels) × 1 set

Shipping Policy:

o Ships within 48 hours of order placement (if in stock).

o Professional logistics tracking service provided.

Packaging & Delivery

Packaging Method: Anti-static bags + hard cardboard boxes are used for packaging, and high-strength corrugated cardboard boxes are used for the outer carton to ensure safe transportation.

Shipping Time: Standard items will be shipped within the agreed timeframe; customized items will be delivered within the agreed business days.

Logistics Channels: DHL, FedEx, UPS, and sea/air freight services are supported.

FAQ

Q1: Can the TES 900E drive a permanent magnet synchronous motor?

A: Yes. The 900E Series Variable Frequency Drive supports sensorless vector control (SVC mode) for synchronous motors. After setting F3-00 to 2, combined with the parameter identification function of F0-06, it can perfectly drive a permanent magnet synchronous motor, providing high-efficiency and high-torque control performance.

Q2: What should I do if the panel displays "Er01" inverter unit protection fault?

A: "Er01" is usually caused by output short circuit, grounding, or module overheating. Please check if the motor insulation is good, and if the output wire is damaged; confirm if the inverter air duct is blocked and if the fan is running normally; if the alarm persists after troubleshooting external faults, please contact technical support to check the drive board or inverter module.

Q3: How to achieve constant pressure water supply function?

A: The 900E Series Variable Frequency Drive has a built-in powerful PID function. Simply connect the pressure sensor signal to the AI1 terminal, set F1-00 to select the PID setpoint, and F1-02 to select the PID feedback source as AI1. Then, set the target pressure value for F1-01 according to the pipeline network requirements.

Q4: Does the frequency converter require regular maintenance?

A: Yes. It is recommended to inspect it every 6-12 months. Focus on cleaning dust from the cooling fan and air ducts, checking for loose internal screws, and inspecting the wiring terminals for signs of burning. If stored for a long period (more than 1 year), pre-charge aging treatment should be performed according to the instruction manual before use.