00198442-04_UM_TX-V2_EN.pdf - 第95页
Instruction manual SIPLACE TX 2 Operational safety From software version 714.0 12/ 2020 2.6 Residual voltages and dis charge times 95 2.6.4 Main switch switched off - placement machine disconnected from the mains power s…
2 Operational safety Instruction manual SIPLACE TX
2.6 Residual voltages and discharge times From software version 714.0 12/2020
94
2.6.2 Energy state at mains plug
2
2
2.6.3 Placement machine switched off at the main switch, but still connected
2
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DANGER
Danger from residual voltage at the mains plug
After disconnecting the mains plug of a placement machine, a residual voltage of up to 60
µC could still be present (in line with EN 60204-1). When combining the power supply con-
nections for multiple placement machines, this could cause a hazard.
DANGER
Lethal voltages!
Incorrect handling of this placement machine can therefore result in death or severe injury
or considerable damage to equipment.
The following components still carry potentially lethal voltages in the power supply unit,
even if the main power switch is switched off:
– L1, L2 and L3 of main switch Q1
– Cable connection terminals X2, X10, X300, F1 and power pack PS5
– Safety cutoff (CSB), capacitor bank, power pack PS4 and testing terminals X303 -
X306 remain live for 5 minutes after the main switch has been switched off.
– The color of all individual wires, which still carry electricity, even if the main power
switch is switched off, is orange.
Instruction manual SIPLACE TX 2 Operational safety
From software version 714.0 12/2020 2.6 Residual voltages and discharge times
95
2.6.4 Main switch switched off - placement machine disconnected from the mains
power supply
2
2.6.5 Compressed air conditions after switching off at the main switch
When the main switch is switched off or the mains supply to the placement machine fails, the elec-
trically-controlled main valves of the compressed air unit will close (item 1 in fig. 2.7 - 1
, page 97).
The pressure will drop to 0 MPa (0 bar) within 5 seconds. The components before the electrically-
controlled main valves will remain pressurized.
DANGER
Lethal voltages in the power supply unit!
The power supply unit has components (capacitors) which can still conduct potentially le-
thal voltages for approx. 5 minutes, even when the placement machine has been switched
off and the mains plug has been disconnected.
When working on the power supply, switch off the main switch, secure it to prevent
switching on again, disconnect the placement machine from the power network and
wait 5 minutes until the capacitors have discharged.
Test to check that there is no remaining voltage supply. See the procedure described
in the service manual.
Only ASM Assembly Systems GmbH&Co.KG service engineers or the machine
owner's service engineers, who have been trained by ASM, may perform work on the
power supply and the safety cutoff (CBS).
2 Operational safety Instruction manual SIPLACE TX
2.7 Disabling the compressed air supply and discharging the pressure From software version 714.0 12/2020
96
2.7 Disabling the compressed air supply and discharging
the pressure
The compressed air unit is at location 2 (see fig. 4.4 - 1, page 183 ). The compressed air working
pressure of the placement machine is set to 0.51 ± 0.01 MPa (5.1 ± 0.1 bar). The position of the
compressed air unit is shown at item 1 in fig. 2.7 - 1
, page 97. The supply of compressed air to
the placement machine can be interrupted with the shutoff valve (item 2 in fig. 2.7 - 1
, page 97 ).
Use the machine key to release the cover lock.
Lift the cover (see fig. 2.7 - 1, page 97 ).
Turn the lever of the shutoff valve (item 1 of fig. 2.7 - 1, page 97) from the vertical to the hor-
izontal position.
Monitor the operating pressure manometer (item 5 in fig. 2.7 - 1, page 97 ). When the place-
ment machine is switched on, the pressure discharges to 0 MPa (0 bar) within 1 minute.
2
CAUTION
Interruption to compressed air supply!
When the placement 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 preven-
tive maintenance or servicing work, you must switch the placement machine off at
the main switch and disconnect it from the power supply.