Controlling the external fan with a temperature triggered dry contact
The Temperature trigger has a user configurable range of +20°C to +55°C (68
– 131°F). When the battery
temperature (monitored by the Battery Temperature Probe) reaches the threshold, the assigned relay
energizes. The relay de-energizes when the temperature drops 10°C (18°F) from the Set temperature.
This relay can be used to turn on the external fan. Figure 45 shows the Relay Configuration window under the
UPS Maintenance > Relay & Load Shed
screen. As an example, to assign C1 as the Temperature trigger,
a.
Select
Temperature
from the drop down menu.
b.
Click
Update Configuration
and the current status updates momentarily.
c.
Figure 46 shows the fan-on temperature threshold set at 55°C. To change this value, type the new value
in the
Fan On Temperature
box (or use the up/down arrow keys) and click
Update Configuration
to
update the current status display.
See Table J for a
description of all
available dry
contact functions
Figure 45
— Assigning the Temperature trigger function to a dry contact – Alpha UPS Monitor
Figure 46
— Setting the Temperature trigger value
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Summary of Contents for FXM 350 Series
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