Burkert 8792 Operating Instructions Manual page 165

Type 8792, 8793 Type 8792, 8793
Configuring the auxiliary functions
25.3.1.3. M.TUNE.PWM – Optimization of the PWM signals
In this menu the PWM signals for control of the aeration valves and bleed valves are manually optimized.
For optimization the actuator is aerated and bled. A progress bar on the display indicates the position of the
actuator and the speed of aeration and deaeration.
The setting is optimum when the progress bar moves as slowly as possible.
WARNING!
Danger due to uncontrolled valve movement when the M.TUNE.PWM function is running.
When the M.TUNE.PWM function is running under operating pressure, there is an acute risk of injury.
▶ Never run M.TUNE.PWM while a process is running.
▶ Secure system against unintentional activation.
Optimization of the PWM signals
Key Action
/ Select M.TUNE.PWM
ENTER
Press
/ Select yB.min
ENTER
Press
/
Increase speed
Reduce speed
OK
Press
/ Select yE.min
ENTER
Press
/
Increase speed
Reduce speed
OK
Press
EXIT Press
Table 99: M.TUNE.PWM; optimization of the PWM signals
Description
The submenu is displayed.
yB.min = aeration valve
yE.min = bleed valve
Submenu for setting the PWM signal for the aeration valve.
The input screen for setting the PWM signal is opened .
The progress bar indicates the speed of aeration.
Minimize speed so that the progress bar moves as slowly as
possible from left to right.
Caution! Do not minimize speed to such an extent that the
progress bar remains in one position.
Transfer and simultaneous return to the M.TUNE.PWM menu.
Submenu for setting the PWM signal for the bleed valve.
The input screen for setting the PWM signal is opened .
The progress bar indicates the speed of deaeration.
Minimize speed so that the progress bar moves as slowly as
possible from right to left.
Caution! Do not minimize speed to such an extent that the
progress bar remains in one position.
Transfer and simultaneous return to the M.TUNE.PWM menu.
Return to the Manual.TUNE menu.
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