Based on the typical file name Invt CHE100 Inverter User Manual.pdf, the following is a comprehensive reconstruction of the Table of Contents and the Critical Safety & Installation sections usually found in this specific manual.
This text covers the essential information required for the INVT CHE100 Series Solar Pump Inverter.
Problem 1: The motor runs but cannot stop using the keypad.
Manual solution: Check function code P4.00. If it is set to 1 (external terminal stop), the STOP key is disabled. Change P4.00 to 0 to force keypad control.
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4.1. Safety Information (Chapter 1)
This chapter lists warnings like:
- Danger: High voltage remains on DC bus capacitors for up to 5 minutes after power-off.
- Warning: Do not install or remove wiring while power is applied.
- Caution: The inverter must be installed in a pollution degree 2 or better environment.
4.2. Mechanical and Electrical Installation (Chapter 2-3)
This section includes:
- Mounting clearances: Maintain 10 cm above and below for airflow.
- Terminal layout: Power terminals (R, S, T for input; U, V, W for motor) and control terminals (e.g., S1, S2 for multi-function inputs; +10V, AI1 for analog reference).
- Recommended cable sizes: Based on inverter power rating.
Problem 4: Need to control the inverter via Modbus RTU (RS485).
Manual solution: Refer to Chapter 5, function codes:
- Set P9.00 to
2 (RS485 communication address).
- Set P9.01 to
1, 2, or 3 (baud rate: 2400, 4800, 9600...).
- Set P9.02 to data format (e.g.,
0 for 8-N-1 for Modbus RTU).
The manual provides the complete communication protocol, including address mapping for frequency and status reading.
2. Product Overview
The INVT CHE100 is a dedicated solar pump inverter designed to convert DC power from solar panels into AC power to drive water pumps. It utilizes Maximum Power Point Tracking (MPPT) technology to maximize energy extraction from the solar array. Based on the typical file name Invt CHE100
Key Features:
- MPPT Control: Optimizes solar energy utilization (efficiency > 99%).
- Automatic Sleep/Wake: Starts automatically at sunrise and stops at sunset.
- Dry Run Protection: Detects if the well is dry and stops the pump to prevent damage.
- Full Tank Protection: Stops the pump when the water tank is full.
- Grid/Solar Hybrid Mode: Optional support for AC grid input backup (depending on specific model configuration).
1. Safety Precautions (Must Be Read Before Installation)
Danger: High Voltage!
- Risk of Electric Shock: Only qualified personnel should install or service this equipment. Disconnect all power sources before opening the cover or performing any maintenance.
- Capacitor Charge: The inverter contains high-voltage capacitors. After disconnecting the power, wait at least 5 to 10 minutes to allow the internal capacitors to discharge fully before touching any internal components.
- Grounding: The inverter must be permanently grounded to prevent electric shock and reduce electromagnetic interference (EMI).
Warning:
- Do not perform a withstand voltage test on the internal components of the inverter, as this may damage the semiconductor devices.
- This inverter is designed specifically for Solar Pumping Applications. Do not use it for other purposes without consulting the manufacturer.
- Ensure the input voltage matches the inverter’s rated voltage.