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Expand a CTD

Unlike previous series of CTD controllers, the bus load limitation with these controller types is not measured by the power consumption on the bus but by the exact number of connected modules.

The CTD is supplied as standard in 3 versions:

CTD10: maximum 10 modules

CTD40: maximum 40 modules

CTDmax: No limitation on number of modules. There is a maximum current consumption of 1000mA per bus

 

In terms of software, a CTD can be expanded per 15 modules. A CTD extended to 70 modules is equivalent to a CTDmax

When you have a network connection to the CTD, this can be done in two ways:

  • Online by entering the code of a purchased expansion card (EXP15):
    • You already have an account on Installer Dashboard or QbusControl:

     

    From the setup screen in the System Manager III, click on the “Expansions” tab

    Enter the case-sensitive code of the expansion card (3 times 4 characters)

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    And click on “Activate”.

     

    If you are not yet connected to the Installer Dashboard, you will first be asked for the username and password:

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    If you already have an Installer Dashboard account, the CTD will be expanded immediately.

    If you do not yet have an account on the Installer Dashboard, but do have an account on Qbuscontrol.com, this approval will be requested:

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    After entering your company name and VAT number, the Installer Dashboard is also activated and the CTD will also be expanded immediately.

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    • If you do not yet have an account on the Installer Dashboard nor on QbusControl

    Then you can create an account via https://installerdashboard.qbus.be
    Afterwards follow the steps as mentioned above.

     

  • Offline: via telephone contact with a QBUS service employee

    From the setup screen in the System Manager III, click on the “Expansions” tab
    Click on the button “Add an expansion by phone” and the following screen will appear:

    Qbus System Manager III Manual Update 04 2025 pdf image 067

    If you pass on your installer code from the Installer Dashboard together with the CTD serial number and the red key by telephone, the Qbus employee will provide you with a new 6-digit key. You will then receive an invoice for the requested number of licenses (15,30,45 or 60)

    After entering the received key and clicking on “Activate”, the CTD will be expanded with the number of requested modules.