07/2020
Corona II
– LED Line Scan Illumination
PMA_CHR_CD40069_R05_Manual_Corona-II_XLC4
103
6.5.2.14 Command FC (fan control)
The command FC is used to set the switching temperatures for activation of the cooling
device.
Command
Notes
CommandID
FC
FC works in all XLC4 operating modes
Parameter
None
off_temp
on_temp
save state
Parameter
Value
Description
None
Controller sends a response message with
the current values for
off_temp
and
on_temp
off_temp
Decimal number
The connected fan is switched off if the
maximum of the measured temperatures
falls below the level
off_temp
Special values:
“0” switches the fans off
“1” switches the fans on
on_temp
Decimal number
The connected fans are switched on if the
maximum of the measured temperatures
reaches the level
on_temp
Special values:
“0” switches the fans off
“1” switches the fans on
save state
“W”
If the option “W” is set, the values are
stored non-volatilely in the XLC4 memory.
Response
fc , space , off_temp, “,” on_temp
General notes
The new values are applied immediately.
FC is available in Version V4.22 and higher.
If a cooling device is connected to VOUT or SW1-SW2 and the corresponding flag in FA-
Register is set, the working range of the device is defined by the warning levels stored in
Corona II or the temperature levels set with the FC command.
Example:
FC 50,55
# set off_temp to 50 °C and
fc 50,55
# on_temp to 55 °C
FC 50,55 W
# set and store new values
fc 50,55
FC 1,1
# switch on the fans independent of the temperature
FC 0,0
# switch off the fans independent of the temperature
If the levels of
on_temp
and
off_temp
are set to 0, the warning levels stored in Corona II are
used for fan switching. In this case, a hysteresis of 5K is implemented. That means, if the
warning level is set to 60°C, the fans are switched on at 60°C and off if the temperature falls
below 55°C.