Unigas RX92R-FGR, Service Manual

Page: 69 / 125

21
6.4 Setting the setpoint and the burner and the PID operative band.
6.4.1 Set-point
To set the temperature set-point value, that is the generator operating temperature; proceed as follows.
1st level 2nd level 3rd level 4th level 5th level 6th level Description
Params & Display Menu level for making the parameter
settings
LoadController General configuration of the load
controller
ControllerParam Controller parameters
It appears the below screen:
After setting the set-point it is necessary t oset the operation range of the burner. See paragraph SD_ModON e SD_Mod Off
6.4.2 SD_ModON e SD_Mod Off
Once the temperature set-point W1 is stored, set the burner switch-on (SDon) and the switch-off (SDoff) point:
To set these values, choose the item SD_ModOn (SDOn), by scrolling down the “Load controller” menu with the arrow keys and press ENTER:
1st level 2nd level 3rd level 4th level 5th level 6th level Description
Params & Display Menu level for
making the
t
Params &
Display
SD:ModOn
General
configuration of
the load
SD:ModOn
SD:ModOff General
configuration of SD:ModOff
the display will show:
The
SD_ModOn
default value for this parameter is1% that is, the burner will light again at a temperature 1% lower than the set-point.
Change value, if needed, by means of the arrow keys; press ENTER to confirm and the press ESC to exit. Press only ESC to exit without changing.
Now choose
SD_ModOff
always scrolling down the Load Controller menu, by means of the arrow keys, and press ENTER.
SD_ModOn
Curr: 1.0%
New: 1.0% SD_ModOff
Curr: 10.0%
New: 10.0%
SD_ModOff = below this set value
the burner restar
SD_ModOff = above this set value
the burner shut down
servomotors open (means burner
output increase)
servomotors close (means burner
output decrease)
SetPointW1
Curr: 90°
New: 90°
Curr:
it shows the current set-point; use the arrows keys to change it.
New:
it is the new set value. Enter to confirm, otherwise exit without changing by
pressing ESC.
Press ESC one more time to exit the set-point programming mode.