00196962-04-BA-SX12-V2-EN - 第87页
User manual SIPLACE SX1/SX2 2 Operational safety From software version SC 706.1 SP1 Version 10/2014 2.11 Lock out and tag out procedure 87 2.10.3 Compressed air conditions in the mach ine after switching off at the main-…
2 Operational safety User manual SIPLACE SX1/SX2
2.10 Energy state of the machine after switching off at the main power switch From software version SC 706.1 SP1 Version 10/2014
86
The following table specifies the voltages of modules when the machine is switched off at the main
switch, but still connected to the mains supply.
2
2.10.2 Machine switched off at the main power switch and disconnected
The machine is unpowered, apart from slight residual voltages in the power supply unit.
Module Voltage
Terminal panel X99
terminals L1, L2, L3
3 x 200 V~
3 x 208 V~
3 x 220 V~
3 x 230 V~
3 x 380 V~
3 x 400 V~
3 x 415 V~
Service socket X98
115 V~
120 V~
130 V~
156 V~
220 V~
230 V~
240 V~
Automatic circuit breaker F1
115 VAC
120 VAC
130 VAC
220 VAC
230 VAC
240 VAC
Main switch Q1
Terminals L1, L2, L3
3 x 200 VAC
3 x 208 VAC
3 x 230 VAC
3 x 380 VAC
3 x 400 VAC
3 x 415 VAC
Main switch Q1
terminals to transformer unit T1, T2, T3
0 VAC
Power supply unit
(see Residual voltages and discharge times after
switching off the main switch, page 80)
User manual SIPLACE SX1/SX2 2 Operational safety
From software version SC 706.1 SP1 Version 10/2014 2.11 Lock out and tag out procedure
87
2.10.3 Compressed air conditions in the machine after switching off at the main-
power switch
When you switch off the main switch (item 1 in fig. 2.10 - 1, page 83) or if the power supply to the
machine fails, the electrically controlled main valve of the compressed air unit (item 1 in fig. 2.9 -
1, page 82 ). The pressure will drop to 0 MPa (0 bar) within 5 seconds.
2.11 Lock out and tag out procedure
2.11.1 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.
2
2.11.2 Description
Whenever it becomes necessary to isolate, control and release energy, the following procedure is
to be followed
Notify affected employees.
Shut down the equipment. Carry out all normal stopping procedures:
– Press the stop button.
– Shut down the control computer.
– Switch the machine off at the main power switch.
Isolate the machine from all its energy sources:
– Shut off the compressed air supply
– Shut off the main power supply
PLEASE NOTE
Minimum requirements
These procedures represent the minimum lock/tag out requirements for the preventive
maintenance or service work. 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 Operational safety User manual SIPLACE SX1/SX2
2.11 Lock out and tag out procedure From software version SC 706.1 SP1 Version 10/2014
88
Lock out the machine.
– Attach a lock whenever possible (e.g. to the motor contactor).
2
Fig. 2.11 - 1 Position of the motor contactor
2
(1) Power supply
(2) Motor contactor
Alternatively: tag out procedure
If a machine can be locked out, it must be. However, there are situations where energy iso-
lating devices cannot accommodate locks. In these cases, the energy isolating devices must
be tagged to warn employees that the machine is de-energized for servicing. The tag must
be securely fastened, it must be placed in a position visible to all and it may only be removed
by the person who attached it. 2
(2)
(1)