The IQ®4 Hand/Off/Auto (HOA) modules, launched by Trend Control Systems at the end of
2018, have been designed for ease of use for all
Coupled with its
straightforward usability is a focus on saving energy,
having been designed to give a clear indication of when the plant is
David Field, product manager at Trend, explains: “Plant that is
overridden and runs for eight hours a day could use up to three times as
much energy. Therefore, in order to prevent wastage,
the HOA modules offer various methods of
“When a channel is overridden the button flashes, providing a
clear indication that there is something that needs investigating.
Additionally, an alarm can be configured on each channel so, when the override
button is pressed, notification arrives at a Trend 963 Supervisor or IQ®VISION
“Finally, it is possible to provide indication of the status and
value of the override on a 963 Supervisor or IQ®VISION schematic, so
that it is clear on the page if any plant is being overridden.
of these features mean that overridden plant will be investigated and set back
to automatic and efficient control, maximising energy savings
in the process."
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