MultiGrow Installation Guide
V2.0 MultiGrow Installation Guide Copyright© 2018 Autogrow Systems Ltd 18
Common faults
Some common faults that might occur could be a result of loss of power or a loss of
communications. Below are some suggestions to try and determine a fault and the steps you can
take to fix the problem.
The MultiGrow Controller
appears
turned off:
This is most likely loss of power to the controller, so it is worth checking the unit is correctly plugged
in or the circuit breaker that supplies the controller. If this is fine and there is power going to the
controller, then the power packs inside the controller could be faulty. This can be determined with a
multimeter. If these are fine then the Multi USB circuit board in the controller could be faulty, first
check if there are any lights flashing on the circuit board if not then check that the power inlet plug is
properly inserted, alternatively the fuse mounted on the circuit board could require replacing.
Once power has been restored to the circuit board there should be a power LED and a heartbeat
LED on the Multi USB board to indicate that the network is communicating.
Outputs aren’t working:
First, confirm the power supply to the module, it may be the site 230v/110v circuit breaker tripped.
Next check that there is power supplying the Output Module, the green LED on the module should
be on. If not then use a multimeter to check the power supply on the PCB board, the power pack
could be faulty, or the plug may not be inserted properly. If resurrecting the power doesn’t fix the
problem, there could also be a communications fault on the Bus Network.
Network Communications fault:
If there is a fault on the bus network, then the alarm light will be flashing red on the Module. To fix
this ensure the bus cable plugs are properly inserted, no loose connections or broken wires. If these
seem fine, then the fault could be with the RS485 chip mounted on the circuit board. This will need
replacing but to be sure it is the fault try swapping the chips with one from another other module
and see if the fault goes away. When tracing wiring faults it is best to take a systematic approach
following the wiring diagrams and use a process of elimination.
When the fault has been fixed, the heartbeat light will flash green. If you are having difficulty with a
fault or if the fault you are experiencing is not listed above, please contact Autogrow and we may be
able to help by remotely logging in to the controller.
Installation notes
It is recommended to make detailed notes of the installation. Use the fillable forms provided to log
the details of each module including the address, module number, designated outputs and cable
numbers of each Bus Network cable. This will be invaluable information in the future for expanding
onto the system and any fault diagnosis.
You may decide to send a copy of the installation notes to Autogrow for their records. This will assist
Autogrow in providing future on-line support if required.
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