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2 Operational Safety User Manual S IPLACE HS-50 2.3 Residual voltages in the servo uni t and discharge times Software Version SR.50x. xx 01/2006 US Edition 80 2 Fig. 2.3 - 1 T est sockets on the voltage meas uring unit i…
User Manual SIPLACE HS-50 2 Operational Safety
Software Version SR.50x.xx 01/2006 US Edition 2.3 Residual voltages in the servo unit and discharge times
79
2.3 Residual voltages in the servo unit and discharge
times
If the emergency stop button is pressed or the placement system is switched off, the 200 V link
voltage for the gantry axes and 100 V link voltage for the star axes are discharged to harmless
residual voltages in a very short time. 2
The voltages can be tapped at test sockets X1 - X4 on the voltage measuring unit in the servo
unit. 2
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.
Æ Always follow the applicable accident prevention and DIN regulations (particularly DIN EN
60 204, part 1).
Æ The cover over the servo unit must only be opened by qualified and trained personnel.
2
2 Operational Safety User Manual SIPLACE HS-50
2.3 Residual voltages in the servo unit and discharge times Software Version SR.50x.xx 01/2006 US Edition
80
2
Fig. 2.3 - 1 Test sockets on the voltage measuring unit in the servo unit
(1) Position of the servo units
(2) Voltage measuring unit on the servo unit
2.3.1 Operating voltages, residual voltages and discharge times after pressing
the emergency stop button
Test sockets X2, X3,
X4 measured to X1
(GND)
Voltage in normal
mode
Residual voltage
during emergency
stop
Discharge times
X2 + 30 VDC + 30 VDC -
X3 + 100 VDC < 10 VDC 50 sec
X4 + 200 VDC < 10 VDC 7 sec
User Manual SIPLACE HS-50 2 Operational Safety
Software Version SR.50x.xx 01/2006 US Edition 2.4 Disabling the compressed air supply and releasing the pressure
81
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
Æ Open the safety doors.
Æ Turn the lever of the shut-off valve (item 1 in Figure 2.4 - 1) from the vertical to the horizontal
position.
Æ 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