TReX User Manual v15.30 Firmware
Alert-Based Cooling System
In this example, a TReX-460 is set up in a hot environment with a cooling fan controlled from
Digital Output 4
. The intended behaviour is that the TReX will turn on the cooling fan for 10
minutes whenever it’s onboard temperature sensor passes 90
°C
.
PLC Configuration:
*PLC_RUNG=01:[Q:8]-------[-]---------[-]---------(T:1)
*PLC_RUNG=02:[TT1]---+ [-] [-]
*PLC_RUNG=03:[TT1]-------[-]---------[-]---------(Q:4)
*PLC_RUNG=04:
*PLC_RUNG=05:
*PLC_RUNG=06:
This PLC program requires the configuration of the
Temperature Alert
, the
Alert Output
and
the
Overtemp
. The first two configuration items can be found in the
ALERTS
sub-menu of
the main configuration menu and the third can be found in the
SYSTEM
submenu of the main
configuration menu.
© WTE Limited, 2022 – Christchurch New Zealand
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Summary of Contents for TReX-460
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