DRAFT - In Process
Question / Problem:
Shuttle/ PLC
replacement at Freshdirect Shuttle EE51/61 errors.
Environment:
Fresh Direct,
Bronx.
ASRS
- If you are replacing the PLC's use the normal method of
replacing the PLC.
- Use
the SD card in the PLC to change the IP address of the PLC and change the
test file to ip.txt
- Now connect the engineering
PC to the PLC through the ethernet cable. Open L-Force PLC Designer 3.xx
with the latest program.
- After download of the
program and the shuttle is automatic, you might see EE51/ 61 errors i.e.
EE51 error when the shuttle doesn't have a load or EE51 not blocked when
shuttle has a load.
- This is specific to Fresh
Direct and note that Fresh direct has Wenglor EE51, 61 sensors operating
as "Normally open" type instead of normally closed.
- To avoid this, you will have
to go to the Main_Program > Data_Initialize >
X_Axis_positions_active routine and change the GVL_x_wenglor_sensor =
True ( this will change the polarity of the sensor and make the output
coming from the sensor as NC.
- Below is where you change
the operation. This will be False in the normal shuttle and you will need
to change it.
- To change it just double
click on the false which will turn the prepared value as True, after
setting the prepared value, go to debug menu on the tool bar and hit
write changes. This should change the polarity and shuttle will be
operating normally.
- Create a boot
application after changing the value
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