Reference Diagrams - Swisslog Nexus Technical Operations And Maintenance Manual

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TABLE 1. Troubleshooting sequence for Nexus Station component errors
Action
4 Inspect the component's motor and
attached wires and/or harnesses that con-
trol the component.
5 Inspect the other affected cables and/or
harnesses for possible damage or discon-
nection. Include cables that attach to sen-
sors and/or encoders if the component has
them.
6 If the affected component is a moving part,
move, turn, or open/close it manually.
7 Turn on power, and open the Station
Diagnostics menu at the control panel.
Tap the action buttons for the component
to move it. Observe the behavior of the
component.
8 Run the appropriate diagnostic actions for
the component while observing the desig-
nated LEDs on the circuit board to verify
that the signal to the affected component
is being sent and/or received at the main
circuit board.
9 Clear advisories and alarms related to the
error at the SCC.

Reference diagrams

The following diagrams show locations of the power-source and encoder connections and designated LEDs
for each of the Nexus Station components that commonly malfunction. Use these diagrams to locate the
connections and LEDs as you complete the troubleshooting procedures.
NEXUS STATION | TECHNICAL OPERATIONS AND MAINTENANCE GUIDE
S N
EQUENCE FOR TROUBLESHOOTING EXUS
Details | expected condition | next steps
Wires are securely soldered where applicable or attached
securely by a harness.

If a motor wire has become detached at a solder, or if con-
nector pins are irreparable, replace the motor.
 If harnesses have become loose or detached, reattach them.
Harnesses are securely connected at the sensor and/or encoder.
Wire and conduit are continuous and not detached, cut or
frayed.
 Connect any wires that are not securely connected.
 Replace harnesses that have been cut or frayed, or if pin
connections are missing or irreparably bent.
Component moves, opens, or closes as expected.

If the component does not move manually, look for objects
in its vicinity that may be impeding its movement.
Component moves as expected.
 If the component moves as expected, restart the station and
initiate a transaction to verify that it is back in operation.

If the component does not move as expected, check the
associated LED signals on the main circuit board.
Signal LEDs flash or light as expected.
 If the signal LEDs light as expected but the component does
not move, the motor may require replacement.

If the signal LEDs do not light as expected, or if they remain
lighted without instruction from the system or user, the
driver may have failed, which requires that the circuit board
be replaced.
Errors are removed from the advisory log.
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TATION COMPONENT ERRORS EFERENCE DIAGRAMS
APR/2017