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– 2021 R. STAHL TRANBERG AS. All rights reserved. Page 36 of 38
button in the panel is not flashing, the fault is found in one of the output
modules.
If the Activity led in the Master CPU is constantly on, the system may still be
operable, provided that the panel is functional. If the reason f or the fault is an
output module, only that module is defect, while the rest of the system will work.
The outputs may be turned on manually using the small switches located on
each relay output module. See chapter VI. Output modules, Section 6.01
Overview, Relay output modules, Manual operation.
If a module needs to be replaced, ensure the following:
Disconnect main power feeds to the Master CPU
Disconnect the main and spare power feeds to the output modules
Disconnect the terminal plugs to the module
Remove the module by tilting it towards its rear side (opposite/reverse of text on
module top).
Check the address setting on the faulty module, and set the exact same address
on the new module.
Insert a new module, and then connect the various plugs.
Reapply power and test according to chapters 7.07 Applying power for the first
time and 7.08 Testing the system.
If the failure has been corrected, label the new module in the same way as the
faulty module, e.g. M3, and set a sticker on top of the address dial sw itch to
avoid anyone altering this.