Table of Contents
Advertisement
Analog Fault Signalling (2-state)
Note:
•
2-state mode must be selected at menu 07.
•
This menu selection controls the current-loop fault/failure signal output. This
signal has precedence over the settings on Menu 07.
When 2-state fault signalling is enabled, in the case of a fault the mA output is 3.6 mA or
1
22 mA
, depending on the setting. The mA output is viewed at menu 07.
Rotary
Menu
Switch
Item
Position
08
8
a.
If the LCD displays an equal sign (=) in place of the colon (:) this indicates that
the loop-current is at fault/failure level. For example F: Hi becomes F= Hi.
Set the rotary switch to 8.
•
To change the mode to 2-state High, press the RED (+) button for more than a
second: the display reads F: Hi. In the case of a fault/failure the loop-current goes to
22.0 mA.
•
To change the mode to 2-state Low, press the BLUE (–) button for more than a
second: the display reads F: Lo. In the case of a fault/failure the loop-current goes to
3.6 mA.
1.
For detailed information, see
7ML19985GE04
Left
Description
Arrow
2-state Fault Signalling
(disabled)
2-state High Fault Sig-
Off
nalling (enabled)
2-state Low Fault Signal-
ling (enabled)
Fault Signalling
SITRANS LC500 – OPERATING INSTRUCTIONS
Action
Press both
*
buttons
simultaneously
Press RED (+)
Press BLUE (–)
on page 16.
Values
Display
shows
F: - -
Display
shows
a
F: Hi
Display
shows
F: Lo
Page 67
Advertisement
Table of Contents
