# eTuner Client User Guide

This guide provides offline instructions for the main user operations in the eTuner client. The feature chapters on the left follow the names used in the main window, with a separate page for each feature.

## Help Topics

Quick Start Complete the initial setup in order: start the client, connect a device, check status, upload parameters, and save parameters.
Connection Install the USBCAN driver, select a driver manually, and troubleshoot common connection failures.
Main Window Learn about the status bar, common entry points, and how windows open.
Parameter Upload parameter backups, download parameter files, save to Flash, and restore factory parameters.
Information View model, firmware, hardware, and device traceability information.
Power View the bus voltage and configure the permitted bus-voltage range.
Motor View the motor type, pole pairs, electrical angle, rated torque, and brake information.
I/O View DIn/DOut status and configure input/output functions, inversion, and STO.
Motion Enable, stop, run absolute or relative moves, run continuous motion, and set motion parameters.
Zero Point Set and save the mechanical zero, power-cycle and reconnect, and verify the resulting position.
Feedback View encoder readings, types, resolution, direction, multi-turn, and full-closed-loop information.
Control Configure the operating mode, control source, serial protocol, and RS485 baud rate.
PID Adjust the position loop, speed loop, speed feedforward, filters, and excitation settings.
Current Configure current-loop parameters, current direction, and current excitation.
Recorder Acquire, trigger, display, save, and load operating-data curves.
Safety Power Configure current-, torque-, temperature-, and voltage-related protection thresholds.
Pos Limit Configure position-error and minimum/maximum-position limits.
Safety Speed Configure the maximum permitted speed, speed error, emergency-stop deceleration, and soft speed error.
Motor Stuck Configure stall conditions, soft-stall thresholds, force-control limits, and the maximum speed limit.
Status Monitor View status, position, speed, current, temperature, I/O, and error history.
Fault Diagnosis Collect fault-related diagnostic data under the guidance of technical support.
Fault Appendix Look up fault codes, warning codes, error-bit sources, and number meanings.