00197543-01_SM_JTF-S_ JTF-M_en - 第77页

Service Works 2.8.5 Troubleshooting Charts SIPLA CE JTF-S Troubleshooting SIPLA CE JTF-S Service Manual SIPLACE JEDEC Tray Feeder 77 As the elevator lowers, the top tray catches. The pawls may be sticking. ► Check the ac…

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Service Works
Troubleshooting SIPLACE JTF-S 2.8.5 Troubleshooting Charts SIPLACE JTF-S
76 Service Manual SIPLACE JEDEC Tray Feeder
2.8.5.3
2.8.5.3 Elevator and Tray Exchange Problems
Elevator and Tray Exchange Problems
The arm for the “stop at end” sen-
sor may be stuck.
► Check for free movement of
the arm. Is U1-4 on?
The cable to the host machine
may not be connected.
► Check the cable.
The DIP switches may not be set
correctly for sink or source.
► See the table in Sect. 6.2 and
check the DIP switches.
The micro-controller may be lost
in a program loop.
► Reset by turning the power
off, then on again.
One of the button inputs may be
“stuck.”
► Check the LEDs on U1 and
U6.
Problem Possible Cause Solution
Problem Possible Cause Solution
The elevator does not move up or
down (motor not moving).
The door may be open. ► Close the door.
The door switch may be stuck. ► Check U6-8 and the door
switch.
The gears in the gearbox may be
stripped.
► Replace the gearbox.
The elevator does not move up or
down (motor moving).
The motor driver IC may be bad. ► Replace the motor driver IC
(U9 – SN75441).
The elevator motor may be bad. ► Replace the motor.
The elevator does not move up. The elevator may be out of trays. ► Add more trays and close the
elevator access door.
(Blue LED on) ► Close the elevator access
door.
The elevator access door may be
open.
► Check U6-8 and the door
switch.
► Replace the switch if neces-
sary.
The door switch may be stuck. ► Check the sensor (figure 85)
and U6-6.
► Replace the sensor if neces-
sary.
The elevator does not move
down.
There may be trays stuck under
the elevator.
► Remove the trays.
► To prevent this in the future,
install the “tray block” acces-
sory.
The “elevator high” sensor may
not have been made.
► Check the sensor and U6-6.
► Replace the sensor if neces-
sary.
The “elevator low” sensor may
have been made prematurely.
► Check the sensor and U6-7.
► Replace the sensor if neces-
sary.
Service Works
2.8.5 Troubleshooting Charts SIPLACE JTF-S Troubleshooting SIPLACE JTF-S
Service Manual SIPLACE JEDEC Tray Feeder 77
As the elevator lowers, the top
tray catches.
The pawls may be sticking. ► Check the action of the
pawls. If the pawls are sticky,
disassemble the mechanism
and clean them with alcohol.
► Do not lubricate these parts!
The bottom of the three (small)
pawls may be extending past the
side plate.
► Install four new pawl lift rods
The feeder indexes before the
tray is ready.
The microcontroller may be lost
in a program loop.
► Reset by turning the power
off, then on again.
One of the button inputs may be
stuck.
► Check the LEDs on U1 and
U6.
The feeding mechanism jams. The Tray Thick/Thin switch may
be set for the wrong type of tray.
► Set the Thick / Thin switch
correctly.
During tray exchange, the lift cyl-
inder does not make it to the top
of its stroke.
The mechanism may have
jammed.
► Check for a mechanical prob-
lem, then press the Reset
button.
The air pressure to the feeder
may be low.
► Check the air pressure. This
should be 60 psi or 5 bar.
► See the instructions at the
beginning of this section.
The lift cylinder may not be mov-
ing freely.
► Remove the bottom plate in-
side the feeder and check for
free motion of the cylinder.
The flow controls for the lift cylin-
der may be out of adjustment.
► Check the pneumatic adjust-
ments for the lift cylinder.
The “lift cylinder up” sensor may
not be made.
► Check LED U1-1 and the
sensor.
► If the sensor is not made,
check that the shock absorb-
ers are properly adjusted.
The valve block for the lift cylin-
der “up” function may be bad.
► Check the valve block and re-
place it if necessary.
The lift cylinder may be bad.
► Check the cylinder and re-
place it if necessary.
Problem Possible Cause Solution
Service Works
Troubleshooting SIPLACE JTF-S 2.8.5 Troubleshooting Charts SIPLACE JTF-S
78 Service Manual SIPLACE JEDEC Tray Feeder
2.8.5.4
2.8.5.4 Conveyor and Sensor Problems - Outgoing Cycle
Conveyor and Sensor Problems - Outgoing Cycle
During tray exchange, the lift cyl-
inder does not make it to the bot-
tom of its stroke.
The door may be open, or the
door switch may be stuck.
► Check U6-8 and the door
switch.
► Replace the switch if neces-
sary.
The mechanism may have
jammed.
► Check for a mechanical prob-
lem, then press the Reset
button.
The air pressure to the feeder
may be low.
► Check the air pressure. This
should be 60 psi or 5 bar.
See the instructions at the
beginning of this section.
The lift cylinder may not be mov-
ing freely.
► Remove the bottom plate in-
side the feeder and check for
free motion of the cylinder.
The flow controls for the lift cylin-
der may be out of adjustment.
► Check the pneumatic adjust-
ments for the lift cylinder.
The “lift cylinder down” sensor
may not be made.
► Check LED U1-2 and the
sensor.
► If the sensor is not made,
check that the shock absorb-
ers are properly adjusted
The valve block for the lift cylin-
der “down” function may be bad.
► Check the valve block and re-
place it if necessary.
The lift cylinder may be bad. ► Check the cylinder and re-
place it if necessary.
Problem Possible Cause Solution
Problem Possible Cause Solution
The conveyor does not move. The feeder may be in an inhibit
condition (yellow LED).
► Press the Inhibit button again
to cancel the condition.
The elevator access door may be
open, or the door switch may be
stuck.
► Close the elevator access
door. Check U6-8 and the
door switch.
There may be an Error or Stop
condition (orange LED blinking or
on).
► Press the Reset button. For
information on the Error con-
dition, see the first part of this
section.
Two trays move at the same
time.
The “thick/thin” switch may be in-
correctly set to “thick.”
► Set the switch to the “thin”
position.
A tray exchange starts with a tray
underneath the separation mech-
anism.
A tray may be improperly located
in the feeder.
► Remove the tray and push
the Reset button.