Wexxar WF30T, Руководство по эксплуатации и обслуживанию

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WF30T Case Former Troubleshooting & Repairs
- 10-99 -
10.3 Machine Sequence Troubleshooting
The machine sequence is controlled by a PLC located inside the electrical enclosure. The
controller responds to inputs from the panel buttons and various sensors on the machine
mechanisms, and it provides outputs that control the solenoid valves in the pneumatic system.
The most common reason for machine sequence malfunction is incorrect sensor operation. The
following series of ‘quick checks’ can be carried out by simply observing the rear of the sensor to
see if it is illuminated when it should be. To troubleshoot the machine sequence, refer to Section
6.2:
‘Start-up’
.
While in
JOG
mode, step the machine through its operating sequence by pressing the
‘MACHINE
CYCLE JOG’
button briefly for each step. Follow the sequential listing in Table 49 to investigate
any problems that may occur.
Table 49: Machine Sequence Troubleshooting
Step
No.
Machine Operation
Recommended Checks if Operation
Faulty
Forming jaws
CLOSE
Sensor checks:
LS-1 (Head UP)
ON
LS-5 (Pusher Back)
ON
LS-8 (Major Flap Folders)
OFF
Check solenoid valve V1.
Check
‘CYCLE’
button for faulty
operation.
1
Magazine feedbelts oscillate Check Solenoid valve V7.
2 Injector
UP
Check LS-2 (Jaws
CLOSED
) is
ON
.
Check solenoid valve V2.
3
Injector
DOWN
Check solenoid valve V2.
4 Forming jaws
OPEN
Check LS-3 (Injector
DOWN
) is
ON
.
Check solenoid valve V1.
Forming head
DOWN
and
case separator
DOWN
Sensor checks:
LS-4 (Jaws OPEN)
ON
LS-5 (Pusher BACK)
ON
LS-3 (Injector DOWN)
ON
Check solenoid valve V3.
5
Minor flap folders
UP/DOWN
during descent of forming head
LS-6 (Head Partly
DOWN
)
ON
.
Check solenoid valve V4.
6 Major flap folders
CLOSE
LS-7 (Case
DOWN
)
ON
.
Check solenoid valve V5.
7
Forming head
UP
, case
separator
UP
LS-8 (Major Flap Folders
CLOSED
)
ON
.
Check solenoid valve V3.
8 Discharge pusher
OUT
LS-1 (Head
UP
)
ON
.
Check solenoid valve V6.
Discharge pusher
BACK
Check that pusher
OUT
sensor (LS-9) is
ON when pusher is fully
OUT
.
Check solenoid valve V6.
9
Major flap folders
OPEN
Check solenoid valve V5.