Alpha Technologies FXM 650, 1100, 2000 UPS - Manual (Page 29)

27 017-230-B4 Rev B
6.2.3 Controlling the external fan by temperature triggered dry contact
The Temperature trigger has a user configurable range of +20°C to +55°C (68 to 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.
Procedure
From the Logo screen, navigate to Control Menu > RELAY TEMP. Press the SELECT button and the current
temperature display will start flashing. Use the Scroll button to change the temperature in 5°C increments. Press
SELECT to accept the changes or CANCEL to abort.
120/60/N
LINE
RELAY TEMP
55
Dry contact functions are not programmable through the LCD. Use the Web GUI or HyperTerminal instead.
Bulk Battery Charging
Selecting Bulk allows programming of the max voltage and the float voltage. For more information on bulk battery
charging, refer to the web GUI description "UPS Maintenance > Battery" on page 38.
1. Put the unit in STANDBY mode before starting this procedure.
2. Use a combination of the SCROLL and SELECT keys on the control panel interface to select
CHARGER in the Control menu.
3. Select Bulk to set the max charge voltage and float voltage for charging the batteries (selectable in 0.1V
increments).
Selectable in 0.1V steps: from
52 to 56V. (Default is 53.5V)
Selectable in 0.1V steps: from
52V to less than or equal to max
charge voltage. (Default is 53.5V)
Selecting Bulk allows
programming of the
max charge voltage
and the float voltage.
CHARGER
Bulk
120/60/N
STANDBY
CONTROL
MENUS
120/60/N
STANDBY
FLOAT VOLT
52.5V
120/60/N
STANDBY
MAX VOLT
53.5V
120/60/N
STANDBY
NOTE:
Temperature compensation defaults to 0 mv/ °C/ cell in this mode, but can be changed
to non-zero values.
If you set the max charging voltage to a value lower than currently set float voltage, float
voltage will be automatically adjusted to be equal to the new max charging voltage.