Wexxar WF-10T, Operation And Service Manual

Page: 97 / 156

WF-10T Case Former Machine Maintenance
9-85
9.4
Electrical Troubleshooting
The electrical control circuit drawing is required for reference and diagnostics. A copy of the
electrical control circuit is in the electrical control cabinet and in the Supplementary Manual.
Close the guard doors, and make sure the
‘EMERGENCY STOP’
button is in the
OUT
position by
turning the knob
8
1
turn clockwise.
Confirm that:
1. All lines into the machine, as listed on the electrical control nameplate in the control
panel, have the correct voltage.
2. The fuses on the disconnect switch are operating properly.
3. The disconnect switch is
ON
(
4
1
turn clockwise).
4. The PLC terminals (‘IN+’ and ‘IN-‘, ‘DC24+’, and ‘DC COM’) are all operating at 24 V DC.
In the unlikely event that LEDs are illuminated improperly, and you do not have the appropriate
PLC interface, or training, contact WEXXAR's service department. Without the appropriate
equipment and training to correct this status, there is nothing else that you can do.
Allow the air pressure to bleed off before attempting any adjustments or replacement of
suspected faulty components.
WARNING!
THE ELECTRICAL CONTROL CABINET CONTAINS
MULTIPLE VOLTAGES. THE FOLLOWING WORK MUST
BE CARRIED OUT BY A QUALIFIED ELECTRICIAN, AND
APPROPRIATE SAFETY PRECAUTIONS MUST BE
FOLLOWED.
WARNING!
TURN OFF THE MANUAL AIR VALVE AND ELECTRICAL
POWER.
NOTE: Many of the input signals to the PLC originate
from inductive or optical sensors as noted on the
electrical control circuit. Without a target, they are
similar to a normally open (‘NO’) switch. With a target in
their sensing range, they turn ON and act like a closed
switch. These sensors are equipped with an LED on the
wire lead end of their housing. These LEDs are turned
ON when the target is in their sensing range.