Service Manual HS60 - 第191页
Se rv ice M a nu al HS-6 0 6 Mo du la r P CB con ve y or s yst em 03/ 200 3 U S Iss ue 6.11 Li ftin g table 189 6.1 1 .6.2 Par ts – 00368272 -01 PCB clamping device s ensor BB1 – 00368273 -01 PCB clamping device s ensor …
6 Modular PCB conveyor system Service Manual HS-60
6.11 Lifting table 03/2003 US Issue
188
6.11.6 Replacing the PCB clamping device sensor BB1/BB2 (00368272-01)
6.11.6.1 Function
The sensor indicates that the lifting table has activated the PCB clamping device.
The PCB is raised for placement and pressed against the PCB hold-down device (guide rail at the
side). As the lifting table moves upwards, the supporting plates on the sides raise the PCB with
the complete conveyor drive and clamp it in place. This enables the placement level to remain
constant, irrespective of the PCB thickness i.e. the placement height of the PCB remains un-
changed.
PCBs up to a length of 460 mm are clamped down in the relevant processing areas. No clamping
takes place in the input and output conveyors. PCBs with lengths between 460 mm and 510 mm
lie on the conveyor belt and are only supported in the placement area by the lifting table.
Fig. 6.11.13 Replacing the PCB clamping device sensor BB1/BB2
Key
(1) Cover with two fastening screws (behind
the sensor)
(3) Grub screw
(2) Clamping actuator 1 (4) Clamping actuator 2
Service Manual HS-60 6 Modular PCB conveyor system
03/2003 US Issue 6.11 Lifting table
189
6.11.6.2 Parts
– 00368272-01 PCB clamping device sensor BB1
– 00368273-01 PCB clamping device sensor BB2
6.11.6.3 Removal and installation
Æ Move the PCB conveyor to the position which gives you the best access to the sensor.
Æ Move the Y-gantries into the area outside the PCB conveyor.
Æ Turn the machine off at the main switch and disconnect the machine from the mains voltage.
Æ Make sure the machine has been properly secured to prevent it being switched on again during
servicing.
Æ Undo the two screws fastening the cover and remove the sensor.
Æ Weave out the connection cable and unplug it at the relevant conversion board for the con-
veyor side. (See also Fig. 6.16.33
).
Æ Place the new sensor in the area provided and replace the cover.
Æ Reconnect the electrical supply.
Æ Adjust the clamping device sensor (see also Section 6.11.6.4).
6.11.6.4 Adjusting the clamping device sensor
The clamping actuators (see Fig. 6.11.13) are arranged set so that clamping actuator 1 activates
the clamping device sensor first.
Æ To adjust the clamping device sensor, first loosen the grub screw. Then position the grub screw
so that it just touches the contact.
Æ When slight pressure is applied to the grub screw with the thumb, the input clamping sensor
should react. (SITEST -> I/O menu 3 conveyor 1 or I/O menu 4 conveyor 2, in each case on
the left under Reserve).
CAUTION
If the grub screw is over-tightened, the clamping device sensor could be destroyed.
Please check:
To rule out any unevenness on the lifting table, the clamping device sensor is checked for func-
tionality with and without the PCB and along the entire transport path. The clamping device sensor
settings are checked in continuous lifting table operation. If the clamping device sensor does not
react to the moving lifting table, an error message will be issued.
6 Modular PCB conveyor system Service Manual HS-60
6.11 Lifting table 03/2003 US Issue
190
6.11.7 Replacing the complete lifting table cylinder (00358703-01)
WARNING
Before performing adjustment work press the emergency STOP to ensure that the lifting table has
been secured against movement.
Fig. 6.11.14 Replacing the complete lifting table cylinder
Key
(1) End position proximity switch (3) Piston rod with locknut
(2) Lifting table cylinder