5 Electrical connections
5.6.3 Profibus-DP, slave DSQC 352
112 A 3HAC 16245-1
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.
NC 2 Not connected
GND 3 Ground connection
NC 4 Not connected
+ 24 VDC 5 External supply of Profibus-DP
Signal name X3 pin Function
Designation Color Description
Profibus active Green Lit when the node is communicating with the master.
If there is no light, check system messages in robot and in
Profibus net.
NS/MS Green/red See section "CAN bus status LED description".
CAN Tx/CAN Rx Green/red See section "CAN bus status LED description".
POWER, 24 VDC Green 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.
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