Atlas | Operation and Installation Manual
13
VI-A. Sensors
Atlas-Megawatt load banks are protected by four types of sensors.
1. Intake temperature, which checks the incoming air to ensure the load elements can
be adequately cooled.
2. Exhaust temperature, which checks the temperature of the air coming out the load
bank to ensure the load elements are being adequately cooled.
3. Fan pressure, when ensures the fan blades are forcing air into the load element
chamber.
4.
Fan current, which ensures the fan motor isn’t overloaded or jammed.
VI-B. Alarms
If the load bank registers an alarm, the green “Normal Operation”
indicator on the main screen will change to a red “Load Bank
Failure” notification and the unit will dump the load. Details
about the alarm can be found on the Maintenance screen,
accessible
by pressing the “Maintenance Mode” button.
The load bank’s HMI can alert you to four alarms:
•
Load Bank Failure
: Indicates that there is a problem
with the load bank that must be resolved
immediately.
•
Exhaust Temp. Failure
: Air leaving the load bank is
too hot.
•
Fan Failure
: Either the fan is not pushing cooling air
into the element chamber or the fan motor is
overloaded.
•
Over Voltage
: Indicates that the load bank has been
connected to a power source that produces a higher
voltage than the unit is configured for.
The load bank will alert you to alarms by turning the status areas for the alarm on the home screen
from green to red.
Unresolved cooling issues may result
in damage to the load bank.
- Alarms and Warnings
