Controlling the external fan by 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.
1. Assign the Temperature trigger function to an available dry contact, (for example,
c1=11
, where 11 is the
assigned index for the Temperature trigger function.)
2. At the HyperTerminal screen prompt, type
Temp
and press Enter to display the current temperature setting.
For example the Alpha FXM might return
*temp=20
.
3. To change the value to +35°C, type
temp=35
and press Enter. The Alpha FXM returns
*temp=35
as
confirmation.
Figure 56 — Temperature trigger function via HyperTerminal
Resetting the Dry Contact Settings
To reset the dry contact settings to the factory default, type
default
and press
Enter
. The Alpha FXM responds
with
*
default
, showing it is reset. This command also resets the timer setting to the 2 hours factory default. See
Table S on page 80 for the factory default settings of dry contacts.
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