SIPLACE D4-D4i 工程师手册_EN - 第239页

Settings 6.5.11 Lifting Table Functions Conveyor Service Manual SIPLACE D4/D4i 239 Lifting table down function Requirements for de tecting that the lifting table i s down: ▪ 30-35 pulses from t he incremental disc ▪ Prox…

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Settings
Conveyor 6.5.11 Lifting Table Functions
238 Service Manual SIPLACE D4/D4i
B) Setting the play on the actuator:
► Disable the clamp and move the lifting table down.
► Measure the play between the actuator and the side edge with a feeler gauge.
► Loosen the actuator screws.
► Set the distance again with the help of a feeler gauge.
Add the play for the clamp to the play for the actuator.
► Tighten the actuator screws again.
► You now need to recheck the gap between the conveyor belt and the clamp when the lifting table
has moved up. (see above)
► If a problem occurs during board clamping, recheck this setting again. We recommend that you
check this setting every three months. When cleaning the machine, always make sure that you re-
move all components from the conveyor belt.
6.5.11
6.5.11 Lifting Table Functions
Lifting Table Functions
Lifting table up function
Requirements for detecting that the lifting table is up:
▪ 30-35 pulses from the incremental disc
▪ Check performed by software (see "6.5.10 Board Clamping Functions" [ ➙ 234])
▪ Dynamic response for board clamping of approx. 500 ms
1. Actuator screwed fixtures
2. Measuring the play with the feeler gauge
Lifting table unit
1. Actuator
2. Lock nut damper
3. Fastening screws for mounting block
4. Damping unit
5. 3/5 way solenoid valve mounted on lifting table drive
cylinder
6. Fork-type light barriers / incremental disk
Settings
6.5.11 Lifting Table Functions Conveyor
Service Manual SIPLACE D4/D4i 239
Lifting table down function
Requirements for detecting that the lifting table is down:
▪ 30-35 pulses from the incremental disc
▪ Proximity switch on the lifting table cylinder
▪ Dynamic response for board release of approx. 480 ms
6.5.11.1
6.5.11.1 Adjusting the Speed of the Lifting Table (from SW 602)
Adjusting the Speed of the Lifting Table (from SW 602)
Time needed to move lifting table up with lifting table plate
► Switch the machine on and start the SITEST program.
► In the PCB conveyor functions menu (see adjacent diagram) you can see the travel time for the lifting
table (from SW 602 upwards).
► Click on Actuate Clamp.
Time needed to move lifting table down with lifting table plate
► The lifting table will be moved up and the travel time will be displayed (see diagram).
► Press the Actuate Clamp button again to move the lifting table downwards and to view the travel time
for the downwards movement.
► If the travel times are not inside the tolerance range or if error messages appear during production,
adjust the travel times (displayed since SITEST 60x) as follows:
► Adjust the valve on the lifting table cylinder, so that you get the following values:
Settings
Conveyor 6.5.11 Lifting Table Functions
240 Service Manual SIPLACE D4/D4i
⇨ Lifting table up: 500 ms +/-20
ms (without lifting table plate ~450 +/-20 ms DT / ~360 +/-20 ms ET)
⇨ Lifting table down: 480 ms +/-20
ms (without lifting table plate ~550 +/-20 ms DT / ~600 +/-20 ms ET)
► If malfunctions occur during the downwards movement or if the board is shaken, reduce the lowering
speed accordingly.
Setting valve anticlockwise: Decrease the lifting table moving time
Setting valve clockwise: Increases the lifting table moving time
6.5.11.2
6.5.11.2 Setting the Lifting Table Unit [00358684-05]
Setting the Lifting Table Unit [00358684-05]
Legend
1. (3) adjust valve downwards
2. (4) adjust valve upwards
Setting the damping unit
The damping unit (1) allows the lifting table to move gen-
tly upwards. When the PCB is clamped, it also prevents
excessive bounce by the PCB.
► Check whether the damping unit is fixed with the lock-
nut (2) in the mounting block and that the plunger (3)
of the damping unit is just touching the actuator (4).
In this default setting, the lifting table should move up
gently.
► If this is not the case, loosen the locknut at the mount-
ing block and turn the damping unit approx. one rota-
tion into the mounting block..
► Move the lifting table upwards, with the help of the
software.
► The lifting table should move gently upwards.
The PCB clamping should not engage audibly and
there should be no PCB clamping error message.
► Check the speed of the lifting table and correct where
necessary.