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7.7.2.1 Potentiometer Calibration
If used, a potentiometer can control the opening and closing with a high degree of
precision. When there is no potentiometer, positioning accuracy tends to degrade after the
inlets go through several opening and closing cycles.
In order to calibrate the inlets/vents using a potentiometer:
•
Install and map at least one potentiometer.
•
Calibrate the potentiometer. Calibration must be successful.
In for any reason potentiometer calibration does not function:
•
calibration is by time (auto and/or at power up). Time calibration does not fail.
•
A potentiometer alarm is generated (if alarms are enabled) . The alarm must be
reset to enable potentiometer calibration to function.
7.7.2.2 Calibrating the Inlets/Tunnel Door
During installation, the user enables auto-calibration or power up calibration in digital
output (relay) inlets. Calibration automatically takes place after the number of inlet
movements equals the number of movements required to start calibration or at Trio power
up.
Only one inlet or tunnel curtain can be calibrated at a time.
•
Relay open occurs when the target position is 100%.
•
Relay close occurs when the target position is 0%.
1. Go to System > Control Strategy > Ventilation .
2. Click .
3. Define:
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