Pixsys ATR144 - Automatic; Manual regulation for % output control

User manual - ATR144- 23
8.7 Automatic / Manual regulation for %
output control
This function allows to switch from automatic functioning to
manual command of the output percentage. The cycle time is
set in parameter 45 c. t. 1 (“Cycle Time 1”).
With par. 29 A. m a.1. it is possible to select two modes.
1 First selection (enab.) allows to eneble with FNC the
writing p.--- on display 1, while on display 2 is showed
autom.
Press SET to visualize manu.; it’s now possible, during the
process visualization, modify through the keys

and 
the output percentage. To back to automatic, with the
same procedure, select autom. on display 2: immediately
led M switches off and functioning backs to automatic.
2 Second selection (en.sto.) enables the same functioning
but with two important variants:
• If there is a temporary power failure or after switch-off,
the manual functioning as well as the previous output
percentage value will be maintained at restarting.
• If the sensor breaks during automatic functioning, the
controller switches to manual mode while maintaining the
output percentage command unchanged as generated by
the PID immediately before breakage.
Ex: on an extruder the command in percentage of the
resistance (load) is maintained also in case of input sensor
failure.