ABB IRB 6600 - 175/2.55 User Manual page 314

5 Electrical connections
5.6.3 Profibus-DP, slave DSQC 352
Signal name
NC
GND
NC
+ 24 VDC
Bus status LEDs The figure and table below show the location and significance of the the LEDs on the board.
The designations refer to LEDs shown in the figure in section "Layout, DSQC 352" above.
Designation
Profibus active
NS/MS
CAN Tx/CAN Rx
POWER, 24 VDC Green
112
X3 pin Function
2 Not connected
3 Ground connection
4 Not connected
5 External supply of Profibus-DP
Color Description
Green Lit when the node is communicating with the master.
If there is no light, check system messages in robot and in
Profibus net.
Green/red See section "CAN bus status LED description".
Green/red See section "CAN bus status LED description".
Indicates that a supply voltage is present, and has a level
above 12 VDC.
If there is no light, check that voltage is present in power
unit and in the power connector. If not, check cables and
connectors.
If power is applied to the unit but it does not work, replace
the unit.
A 3HAC 16245-1