FCU 500, FCU 505 · Edition 02.17
134
OCU
16 .2 Function
The OCU features an illuminated plain-text display. The
lighting is switched on when a control key is pressed
and switches off automatically after 5 minutes. In case
of a fault lock-out or safety shut-down of the control
unit, the OCU light starts blinking.
You can choose between the indicating ranges status
display and Service mode.
The status display shows the program status or a fault
message which has occurred in text form with the ap-
propriate code.
The Service mode allows you to read out process values,
parameter settings, information on the OCU or the sta-
tistics. In addition, you can operate connected control
units in Manual mode.
There are five control keys for the OCU and the control
unit connected to it:
OK
ON/OFF
Use the ON/OFF key to switch the control unit
on or off.
OK
Reset
Use the Reset key to reset the control unit to its
starting position in the event of a fault.
OK
OK
Press the OK key to confirm a selection or query.
Starting from the status display, you can use
the OK key to change to Service mode.
OK
Back
In Service mode, you can use the Back key to
switch from one setting level to the next higher
one.
By holding down the key for a certain time, you
can change directly to the status display.
OK
Navigation UP/DOWN
In Service mode, the navigation keys can be
used to select individual functions on one level.
In Manual mode, those keys can be used to
open and close an activated valve.
