LSIS XBF-AH04A

XGB Analog edition manual
5.3 Function
5.3.1 Disconnection detection function
Thermocouple input module has a function to detect the disconnection and display it.
That the module detects and displays disconnection means that the following cabling path would have
partially bad connection, which requires taking measures
(1) Disconnection occurs between a sensor used/compensating cable and module, LED(ALM) flickers
every second and generates error code.
(2) Disconnection can be detected by channels. However, it is available for the only channel(s)
designated for operation. LED (ALM) is commonly used for every channel. It flickers in case even
only one channel is disconnected.
Thermocouple connection
status
Channel
run
ALM LED
status
Disconnection
flag
Normal
Run Off Off
Stop Off Off
Thermocouple
disconnection
Run Flickering (1s) On
Stop Off Off
(3) In case disconnection occurs, disconnection flag of each channel will be turned on and in case
disconnection is canceled, it will be turned off.
Disconnection flag
Contents
U0x.01.4
Ch. 0 disconnection
U0x.01.5
Ch. 1 disconnection
U0x.01.6
Ch. 2 disconnection
U0x.01.7
Ch. 3 disconnection
(4) When disconnection occurs, the min value among range is displayed.
Type
Displayed temperature in case of
disconnection
K type
-270.0
℃
J type
-210.0
℃
T type
-270.0
℃
R type
-50.0
℃
Type
Displayed value in case of disconnection
0 ~ 100㎷
(XBF-TC04B)
0
5 - 14