Siemens SITRANS LC500 Operating Instructions Manual page 80

Digital Fault Signalling
Note:
This signal has precedence over the settings on Menu 17.
Controls the solid-state switch response to a fault/failure and allows you to select either
contact open or contact closed. With contact closed the solid-state switch will be on:
with contact open the solid-state switch will be off.
While a button is pressed, the LCD displays F: cc
When the button is released an equal sign (=) indicating status replaces the colon, and
the reading depends on the status of the probe.
Example: F = cc is selected (contact closed when fault is detected)
• If a fault condition exists when the button is released, the display changes from
F: cc to F = cc.
• If no fault condition exists when the button is released, the display shows F: cc.
• If you press either button briefly, the LCD displays the current setting, in this
case, F: cc.
Rotary
Menu
Switch
Item
Position
18 8
Set the rotary switch to 8. Press the RED (+) or BLUE (–) button to change the setting. The
disabled mode can be restored at any time by pressing both buttons simultaneously for
more than one second.
1.
A colon at the extreme left of the display appears while the button is pressed to
indicate when a setting is accepted, for example : S: cc.
Page 72 SITRANS LC500 – OPERATING INSTRUCTIONS
Left
Mode
Arrow
Disabled
On
Digital
Signalling
Mode
1
(contact closed) or F: co (contact open).
Description Action
Press and hold
*
both buttons
Contact Closed: Press and hold
switch on RED (+) button
Contact Open: Press and hold
switch off BLUE (–) button
Values
Display
shows
F: - -
Display
shows
F: cc
Display
shows
F: co
7ML19985GE04