Alpha Technologies FXM 650, 1100, 2000 UPS - Manual (Page 46)

017-230-B4 Rev B 44
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 closes and
turns on the external fan.
Figure 30 shows the Relay Configuration window under the UPS Maintenance > Relay & Load Shed screen. As
an example, to assign C3 as the Temperature trigger,
a. Select Temperature from the drop down menu.
b. Click Update Configuration and the current status updates momentarily.
c. Figure 31 shows the fan-on temperature threshold set at 55°C. To change this value, type the new value
into the Fan On Temperature box (or use the up/down arrow keys) and click Update Configuration to
update the current status display.
Figure 31 — Setting the Temperature trigger value
Figure 30 — Assigning the Temperature trigger function to a dry contact