LED
Color
Function
ERR
Red
LED displays the bus error acc. to the CANopen standard "CiA 303
Part 3: Indicator Specification"
RUN
Green
LED displays the bus state acc. to the CANopen standard "CiA 303
Part 3: Indicator Specification"
Tab. 12-1: LEDs of the extension module
The LEDs are displayed as described after the control startup and
after the initialization of the extension modules!
12.1.2 LED on XD1 plug
PW
UL
ON
Fig. 12-2: LEDs on the XD1 plug
The following function is assigned to the LED on the XD1 plug:
LED
Color
Function
PW
Green
Internal voltages are present
ON
Green
Internally programmed function blocks are loaded
U
L
Green
24 V supply voltage connected and within the permitted range
Tab. 12-2: LED function on the XD1 plug
13 Error causes and troubleshooting
For operating and error displays, refer to
chapter 12.1 "LEDs" on page 25
LED
LED display
Cause
Voltage power connector
PW
LED is off
Internal voltage error:
●
Voltage transformer is defective
●
24 V supply voltage is not connected
●
24 V supply voltage is connected with reverse po-
larity
ON
LED is off
Internally programmed function block is not loaded
Bosch Rexroth AG
Error causes and troubleshooting
Extension Modules Profibus, RT-
Ethernet, Sercos, CAN
26/37
DOK-CONTRL-XFE**EXTMOD-IT04-EN-P
