INVT GD20-018G-4-EU User Manual

Provides general safety guidelines for VFD operation, wiring, and maintenance.

Lists rated output power, current, and STO function for various models.

Covers the mechanical aspects of VFD installation.

Specifies environmental conditions for VFD installation.

Covers main circuit wiring and connection diagrams.

Provides diagrams for main circuit wiring.

Illustrates main circuit terminals and their functions.

Explains how to wire the main circuit terminals.

Shows the wiring diagram for the control circuit.

Details the control circuit terminals and their functions.

Introduces the Safe Torque Off (STO) function and its purpose.

Provides a logic table for STO function states and faults.

Outlines steps for verifying STO installation effectiveness.

Guides on operating the VFD using the keypad.

Explains how to navigate menus and modify VFD function codes.

Introduces the structure and notation for function parameters.

Details parameters for acceleration/deceleration selection, S curve times, and stop selection.

Details parameters for start/stop control, starting frequency, and hold time.

Details parameters for acceleration/deceleration, stop selection, DC braking.

Details parameters for restart after power off, waiting time, start delay, stopping speed delay.

Details parameters for V/F curve setting, torque boost.

Details parameters for fault codes and STO alarm states.

Details parameters for current regulation, PID reference source, keypad PID preset.

Details parameters for PID output feature, proportional gain, integral time, differential time.

Details parameters for PID sampling cycle, deviation limit, PID output limits, feedback offline.

Details parameters for PID adjustment selection.

Details parameters for PID command accel/decel time, output filter, low frequency PID parameters.

Details parameters for simple PLC mode, memory selection.

Details parameters for multi-step speed, running time, and terminal control mapping.

Details parameters for multi-step speed, running time, and terminal control mapping.

Details parameters for phase loss protection, frequency drop at power dip.

Details parameters for overvoltage stall protection, current limit, frequency drop rate.

Details parameters for over/underload pre-alarm, detection level and time.

Details parameters for terminal action, speed deviation detection.

Details parameters for extension function selection, short circuit brake.

Details parameters for communication settings (address, baud rate, data bit).

Details parameters for communication response delay, overtime fault, transmission error, and action selection.

Provides general steps for resolving VFD faults.

Lists common fault codes, possible causes, and solutions.

Lists common faults like OC, OV, UV, OL and their remedies.

Lists faults like OL, SPI, SPO, OH, EF, CE and their remedies.

Lists faults like ItE, tE, EEP, PIDE, bCE, END, PCE and their remedies.

Lists faults like UPE, DNE, ETH, LL, STO and their remedies.

Details STO alarm and STL fault conditions and their resolution.

Details STL2 fault and PoFF state and their remedies.

Explains the Modbus protocol and its application in industrial networks.

Describes the VFD's Modbus application and RS485 interface.

Details the 2-wire RS485 communication interface.

Explains the RTU communication mode and frame format.

Details the structure of RTU communication frames.

Explains the ASCII communication mode and coding system.

Details ASCII data format and frame structure.

Details the 03H command for reading data.

Shows RTU master and slave messages for 03H command.

Details the 06H command for writing data.

Shows RTU master and slave messages for 06H command.

Details the 10H command for continuous writing.

Details ASCII 03H command for reading data.

Details ASCII 06H command for writing data.

Details ASCII 10H command for continuous writing.