Swisslog Nexus Technical Operations And Maintenance Manual page 92

I
NSTRUCTIONS FOR TROUBLESHOOTING COMMON COMPONENT ERRORS
TABLE 6. Troubleshoot Nexus Station security door errors
Action | component
5 Inspect the lead screw that controls the move-
ment of the plate.
6 Turn on power, and open the Station Diagnos-
tics menu at the control panel.
Tap Open and then Close for the security door
while observing its movement.
FIGURE 5. Troubleshoot security door errors
APR/2017
| S
ECURITY DOOR ERRORS
Details | expected condition | next steps
Lead screw is in place and properly lubricated.
 Lubricate the lead screw if necessary. See the Mainte-
nance chapter of this Guide for instructions.
Door moves up and down as expected. D22 and D23 indica-
tors alternate flashing as the door moves up and down.
D20 and D21 are lighted to indicate that the signal is being
received at the I/O board.

If the door moves as expected, cycle the station power,
and send a carrier to verify that the station is opera-
tional.
 If the door does not move as expected, check the indi-
cators as you attempt to manipulate the door.

If the motor indicators do not light, the motor may
require replacement.
 If the signal indicators either fail to light or if they
remain lighted while movement is not being attempted,
the signal driver may have failed. In case of a driver
failure, replace the I/O board
TECHNICAL OPERATIONS AND MAINTENANCE GUIDE |
Check harness connections
Brown wire
Black wire
Black wire
Back
Check harness connection
Verify that screws are securely con-
nected to the metal plate that moves
the door
NEXUS STATION
86