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2 Operational Safety User Manual HS -50 2.4 Disabling the compressed air supply and releasing the pressure Software Version SR.501.xx 12 /99 Issue US 80 t I I t 2 Fig. 2.4 - 1 Compressed air unit on the placement system …
User Manual HS-50 2 Operational Safety
Software Version SR.501.xx 12/99 Issue US 2.4 Disabling the compressed air supply and releasing the pressure
79
t IIt
2.3.2 Residual voltages and discharge times after switching off at the main switch
2
CAUTION The following conditions must be fulfilled before switching off the placement
system (apart from in emergencies) in order to avoid the loss of data: 2
– the placement system must have stopped transmitting machine, set-up and cluster data.
– the placement system must have stopped processing the PCBs.
– the placement system must have completed the start-up phase.
2.4 Disabling the compressed air supply and releasing
the pressure
The compressed air operating pressure is permanently set to 5.5 bar. The position of the com-
pressed air unit is indicated by item 4 in Figure 2.4 - 1
. The compressed air supply to the place-
ment system may be interrupted using the shut-off valve (item 1 in Figure 2.4 - 1
the diagram). 2
Å Open the safety doors.
Å Turn the lever of the shut-off valve (item 1 in Figure 2.4 - 1) from the vertical to the horizontal
position.
Å Check the operating pressure gauge and the pressure gauge for the compressed air supply to
the stopper (items 2 and 3 in Figure 2.4 - 1
). When the placement system is switched on, the
pres-sure drops to 0 bar within 1 minute.
CAUTION When the machine is switched on, do not use the stop valve to interrupt the
compressed air supply for more than 30 minutes. If you need to shut off the pneumatic system for
longer in order to carry out maintenance or servicing work, you must switch the placement system
off at the main switch and disconnect it from the power supply. 2
Test sockets X2, X3, X4
measured to X1 (GND)
Residual voltage when main
switch is switched off
Discharge times
X2 < 10 VDC < 2 sec
X3 < 10 VDC < 50 sec
X4 < 10 VDC < 7 sec
2 Operational Safety User Manual HS-50
2.4 Disabling the compressed air supply and releasing the pressure Software Version SR.501.xx 12/99 Issue US
80
t IIt
2
Fig. 2.4 - 1 Compressed air unit on the placement system
WARNING 2
NEVER detach compressed air lines while they are still pressurized. Risk of injury.
(1) Shut-off valve lever in the CLOSED position
(2) Operating pressure gauge
(3) Pressure gauge for the component table operating pressure
(4) Input pressure manometer
(5) Position of the compressed air unit on the placement system
User Manual HS-50 2 Operational Safety
Software Version SR.501.xx 12/99 Issue US 2.5 Energy state of the placement system after switching off at the main switch
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2.5 Energy state of the placement system after switch-
ing off at the main switch
DANGER 2
The placement system is supplied with 3 x 204 V AC (US version), 3 x 230 V AC, 3 x 380 V AC,
3 x 400 V AC or 3 x 415 V AC ± 5 %, 50/60 Hz mains voltage. This means that some parts of the
system carry potentially lethal voltages - even when switched off at the main switch. Incorrect
handling of the placement system can therefore result in death or severe injury or considerable
damage to equipment.
Å Always follow the applicable accident prevention and DIN regulations (particularly DIN 60 204,
part 1).
Å The cover over the servo unit must only be opened by qualified and trained personnel.