Jetter JC-120MC, User Manual

Page: 57 / 634

Jetter AG 57
JC-120MC Mechanical and electrical installation
LEDs of the controller
The controller JC-120MC indicates conditions and errors via its LEDs. There
are three groups of LEDs:
 Status messages of the operating system

Application-specific LEDs
 Status of the Ethernet port
The status LEDs of the OS and application-specific LEDs are located in the
diagnostic and status area below the labeling field.
R
SD
U1
U3 U4
U2
E D1 D2
JC
-3
xx
Jetter
OS LED Color Description
R Green OS is running
E
Red Generic error
D1
Red Special conditions
D2 Red Boot loader is running
SD
Amber Access to SD card
Application-specific
LED
Color Description
U1
Amber Programmable depending on the application
U2 Amber Programmable depending on the application
U3
Amber Programmable depending on the application
U4
Amber Programmable depending on the application
In normal operating condition, the OS LEDs of the controller JC-120MC
indicate the following:
R E D1 D2 SD State
ON OFF OFF OFF OFF
Normal operating condition

Application program is running

No error

No access to SD card
LEDs of the controller
OS- and
application-specific
LEDs
Normal operating
condition