Burkert Type 8620 - Manual (Page 29)

mxCONTROL Type 8620
Page 29
8.3 Operation Mode
8.3.1 Automatic & Manual Mode Key
A/M key with
yellow LED
The A/M key switches between the Automatic and Manual Mode;
the A/M key includes a yellow LED:
LED on Æ Automatic Mode
LED off Æ Manual Mode
LED flashing Æ ALARM (at least one alarm) both in
automatic and manual mode
In case of alarm, follow the descriptions in chapter 15 “Alarm and Error Messages”.
8.3.2 Automatic Mode (LED on)
The „Type 8620 mxCONTROL“ starts in automatic mode after powering up. The LED is on; a "running
bar" in the top line of the display also indicates the Automatic Mode.
8.3.3 Manual Mode (LED off)
The operating mode for all modules can be changed directly by pressing the separate A/M-Key.
In manual operation, the control of the process values is transferred from the device to the user. The
user now controls the process values manually with the soft keys of the „Type 8620 mxCONTROL“
whereby the connected actuators are operated. For this purpose, the values in the main menu
"Process data" need to be changed under the corresponding module.
Switching from Automatic to Manual Mode is “changeless”, except for the "Biocide-Dosing" and
"Batch" modules. “Changeless switching” means that the last output value in Automatic Mode is the
current output value in Manual Mode as long as the operator does not change the output value
manually.
Attention: All dosing processes of the Batch- and Biocide-Dosing-Modules are cancelled
in Manual Mode!
(The next dosing process will start at its programmed time when returning to Automatic Mode.)
If the system switch override function or the flow switch override function or the
safety output value
is activated the manual output value will be reset to “0”!