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User Manual SIPLAC E CF 2 Operational safety Software version SR.101.xx 06/2003 US Edition 2.8 Energy state of the machine after switching off at the main power switch 59 2.8.1 Placement system switch ed off at t he main…
2 Operational safety User Manual SIPLACE CF
2.8 Energy state of the machine after switching off at the main power switch Software version SR.101.xx 06/2003 US Edition
58
2.8 Energy state of the machine after switching off at
the main power switch
WARNING 2
Automatic placement systems from the SIPLACE family are powered with 3 x 400 V or 3 x
208 VAC (U.S.A. version) ± 5 %, 50/60 Hz mains voltage. This means that parts of the system
carry potentially fatal voltages - even when switched off at the main switch. Death, serious injury
or considerable damage may result if these automatic placement systems are handled incor-
rectly. Always follow the applicable accident prevention and DIN regulations (particularly
EN 60204, part 1). The guards over the control and servo units must ONLY be opened by appro-
priately qualified and trained personnel. 2
Fig. 2.8 - 1 Position of the control unit, servo unit, main switch, service socket and compressed
air unit in the placement system
(1) Main switch Q1< (5) Control unit
(2) Compressed air unit (6) Power supply in the control unit
(3) Service socket (7) Measuring unit, servo unit
(4) Servo unit
unswitched switched
User Manual SIPLACE CF 2 Operational safety
Software version SR.101.xx 06/2003 US Edition 2.8 Energy state of the machine after switching off at the main power switch
59
2.8.1 Placement system switched off at the main power switch, but still connected
The following table specifies the voltages of modules when the automatic placement system is
switched off at the main switch, but still connected to the mains supply.
2
2.8.2 Placement system switched off at the main power switch and disconnected
The automatic placement system is unpowered, apart from slight residual voltages in the servo
unit.
Assembly Voltage
Main power filter Z1
Terminals L1, L2, L3
3 x 400 VAC (3 x 208
VAC)
Service socket
230 VAC(115 VAC)
Main switch Q1
Terminals L1, L2, L3
Terminals T1, T2, T3
3 x 400 VAC (3 x 208
VAC)
0 VAC
Servo unit (item 7 in Fig. 2.8 - 1
)
Test socket 001
Test socket 002
Test socket 003
Test socket 004
Test socket 005
Test socket 006
Test socket 008
Test socket 009
GND 007
< 12 VDC
< 12 VDC
< 12 VDC
0 VDC
0 VDC
0 VDC
< 12 VDC
< 12 VDC
Control unit (item 6 in Fig. 2.8 - 1
)
Test socket 5 V
Test socket + 12 V
Test socket – 12 V
Test socket + 15 V
Test socket – 15 V
Test socket + 24 V
GND
0 VDC
0 VDC
0 VDC
0 VDC
0 VDC
0 VDC
Tab. 2.8 - 1 Voltages of assemblies when the automatic placement system is switched off at the main switch,
but still connected to the main power
2 Operational safety User Manual SIPLACE CF
2.9 Lock out and tag out procedure Software version SR.101.xx 06/2003 US Edition
60
2.8.3 Compressed air conditions in the machine after switching off at the main
power switch
When the system is switched off at the main power switch (item 1 in Fig. 2.8 - 1) or if the power
supply fails, the electrically-controlled main valve Y1 of the compressed air unit closes (Fig. 2.7 -
1, page 56 ). The pressure will drop to 0 MPa (0 bar) within 5 seconds.
2.9 Lock out and tag out procedure
2.9.1 Purpose and scope
Before performing any preventive maintenance work or service work, a procedure of locking and
tagging must be followed. The procedure, when followed correctly eliminates the possibility of an
employee being injured.
PLEASE NOTE
These procedures represent the minimum lock/tag out requirements. Any additional safeguards
needed to complete work safely can be specified by facilities supervision, the safety officer, the
safety committee and the health department. 2
2.9.2 Description
Whenever it becomes necessary to isolate, control and release energy, the following procedure
is to be followed
(1) Notify affected employees.
(2) Shut down the equipment. Carry out all normal stopping procedures, such as
– depressing the stop button
– shutting down the station computer
– switching off the placement machine at the main switch
(3) Isolate the machine from all its energy sources such as
– compressed air supply and
– power supply.
(4) Lock out the machine.
– Apply the lock and the lockout whenever possible.
– Alternative:Tagging out