What are the Functions of the Otis Elevator Test Tool?

The Otis test tool [https://www.nonaelevator.com/elevator-service-test-tools-otis-gaa21750ak3-lift-commissioning-operator-product/] is a powerful assistant in the elevator commissioning process, boasting a rich array of button functions and easy operation. To help you better understand and use this commissioning tool, we have compiled the following button function descriptions to make your Otis elevator drive process more efficient.

First, let's look at the four key buttons on the left: MODULE, FUNCTION, SET, and the blue button. The commissioning tool's button design is ingenious and comprehensive. To facilitate your better understanding and use of this commissioning tool, we have carefully prepared the following detailed button function descriptions.

Image: https://ecdn6.globalso.com/upload/p/2110/image_other/2026-01/1-9-image-1.png

1. Commissioning Otis Test Tool Function Overview

The Otis elevator parts [https://www.nonaelevator.com/elevator-service-test-tools-otis-gaa21750ak3-lift-commissioning-operator-product/]. The Commissioning Tool is an important tool in the elevator commissioning process, providing simple and effective functional support. Its button design is ingenious and comprehensive.

Image: https://ecdn6.globalso.com/upload/p/2110/image_other/2026-01/test-tool-004.png

2. Detailed Otis Test Tool Button Function Explanation

First, let's look at the four key buttons on the left: MODULE, FUNCTION, SET, and the blue button. The MODULE key returns to the main menu from anywhere in the service tool software; the FUNCTION key returns to the installation and OTIS test tool manual from anywhere in the system; the SET key selects items in the function menu for further selection; and the blue key, similar to the SHIFT key on a computer keyboard, toggles key functions. Pressing the blue key will cause a flashing cursor to appear at the first character position on the test tool display, indicating that the blue key function is activated. The flashing cursor will disappear after selecting the corresponding function key.

Image: https://ecdn6.globalso.com/upload/p/2110/image_other/2026-01/1-9-1.png

Next are the twelve keys on the right, designed similarly to a keyboard, half white and half blue. For normal use, simply press the white portion. To use the Otis lift parts [https://www.nonaelevator.com/elevator-service-test-tools-otis-gaa21750ak3-lift-commissioning-operator-product/] functions of the blue portion, first press the unmarked blue key in the lower left corner, and then press the desired function key. These keys function similarly to the SHIFT key on a computer keyboard, used for inputting or changing values, saving changes, and switching the display forward.

Image: https://ecdn6.globalso.com/upload/p/2110/image_other/2026-01/image-1-9-1.png

Hopefully, this detailed guide to the Otis drive test tool's key functions will help you navigate elevator debugging more smoothly. The GO BACK key switches the display backward. When using the device, press the SHIFT key first, then press the GO ON/GO BACK key to activate the GO BACK function.

Regarding server usage, after inserting the server into the Otis elevator board's interface, the ST monitor will display "SELF TEST -OKMECS-MODE". This indicates that the server self-test has passed and the current connection is to the modular Otis elevator control system mode, which is normal. If other messages appear, it is recommended to unplug and replug the debugger for testing. If the problem persists, there may be a fault in the test tool or elevator components.

As a professional supplier, our company offers a wide range of Otis lift parts and accessories, and we also provide technical guidance. If you have any needs in this area, please feel free to contact us: candice@nonaelevator.com & +86 17719527681.

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