00196457-05_UM_SX12DX12_SR706_EN.pdf - 第90页
2 Operational safety User Manual SIPLACE SX1/SX2/DX1/DX2 2.11 Lock out and tag out procedure From software version SC.706.xx Version 06/2012 EN 90 2 Fig. 2.1 1 - 1 Position of the motor contactor 2 (1) Power supply (2) M…
User Manual SIPLACE SX1/SX2/DX1/DX2 2 Operational safety
From software version SC.706.xx Version 06/2012 EN 2.11 Lock out and tag out procedure
89
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 85) 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 84 ). 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.
PLEASE NOTE These procedures represent the minimum lock/tag out requirements for the pre-
ventive 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
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
Lock out the machine.
– Attach a lock whenever possible (e.g. to the motor contactor).
2 Operational safety User Manual SIPLACE SX1/SX2/DX1/DX2
2.11 Lock out and tag out procedure From software version SC.706.xx Version 06/2012 EN
90
2
Fig. 2.11 - 1 Position of the motor contactor
2
(1) Power supply
(2) Motor contactor
(2)
(1)
User Manual SIPLACE SX1/SX2/DX1/DX2 2 Operational safety
From software version SC.706.xx Version 06/2012 EN 2.11 Lock out and tag out procedure
91
Fig. 2.11 - 2 Locking the motor contactor
2
– 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
(A) Turn the operating lever counterclockwise.
(B) Use the screwdriver to push the locking lug out of the operating lever.
(C) Secure the operating lever with a padlock.