00191374-04.pdf - 第54页
2 Operational Safety Adjust men t Ins tru ct ion s SIPL ACE H S-50 2.6 Locking Up of Machine and T agging of Warn S igns Edition 12/00 54 7 UDLQLQJ (1) Employee tr aining The safet y regula tions req uire tra ining…
Adjustment Instructions SIPLACE HS-50 2 Operational Safety
Edition 12/00 2.6 Locking Up of Machine and Tagging of Warn Signs
53
– Release stored energy
Stored energy in the compressed air supply or electrical energy in electrolytic capacitors must
be released by appropriate means.
Å In order to be able to work without any risk, after switching off the placement system, wait until
the voltages and the compressed air have discharged . See paragraph 2.3
and 2.4
(5)Check all locks.
Å Test the locks on the system simply by pressing the START button.
(6)The following steps must be taken to restore the machine to operation.
(7)Check your working area. Authorized employees should remove all of their tools and reinstall
all guards.
(8)Notify all involved employees.
Å Before removing even one lock or tag, inform all workers in the area that the machine is going
to be restarted.
(9)Remove locks / tags
Å Each authorized employee must remove their own lock. Each authorized employee will have
to store their own lock.
(10)Turn the machine on.
Authorized workers should check the system while it is operating to ensure that repairs were
performed correctly.
7HVW
The maintenance workers or electrician may test the circuits by energizing them for a short
period of time without voiding the lock up procedure provided. This may be done only when no
other work is being performed by any other person on the equipment being tested.
It is extremely important that all other START switches will be tagged with the “Do Not Operate”
warning sign, to prevent inadvertent operation of the system during the test.
5HVSRQVLELOLWLHVDQG2EOLJDWLRQV
(1)It is the responsibility of the maintenance personnel and electricians to make sure this proce-
dure is adhered to.
(2)It is the responsibility of the maintenance and electricians’ immediate
supervisor to introduce their personnel to this procedure.
(3) It is the responsibility of the Safety Officer with assistance of the Safety Committee, Health Ser-
vice Department, and the various managers as well as Vice - Presidents to administer the Lock
Up / Tag procedure.
2 Operational Safety Adjustment Instructions SIPLACE HS-50
2.6 Locking Up of Machine and Tagging of Warn Signs Edition 12/00
54
7UDLQLQJ
(1) Employee training
The safety regulations require training for everyone, even if not all employees are exposed to
the same degree of danger or are involved with LO / TO as much as others are. So extensive
training is not obligatory for everyone.
(2) To determine how much training is necessary, we divide employees into three groups.
Each group has its own level of training.
(3) Authorized employees:
These workers actually install the locks and tags and do the maintenance or service work. So
they must know the most about controlled energy. First, they must be able to recognize all
energy sources and to measure the amount of energy. Authorized employees must look for en-
ergy sources out of the realm of the obvious. These energy sources include electrical,
mechanical, hydraulic, pneumatic, chemical, thermal and gravitational energy. Once these
employees can recognize all such energy sources they must be taught how to isolate, control,
and release the energy without any risk.
(4) Involved employees
These are workers who operate the machinery or equipment that may be de-energized. Other
employees who may be affected include those who work in an area that contain equipment that
may be locked / tagged. These employees have to be instructed on the nature of the energy
control program, they must know why locking / tagging is important, what tags and locks look
like and why they must not remove tags or locks.
(5) All others
As the name implies, any employee who is not affected or authorized fits into this category.
These employees include office personnel, engineers, managers, and high level management.
Although they are not directly involved with the system and the machinery being locked or
tagged, they have to receive some training.
(6) To evaluate the lock / tag procedure, the safety department will conduct periodic inspections.
As part of the inspection, the safety department will document if all aspects of the procedure
are followed. The safety department will follow up with a formal review or retraining of the
LO/TO procedure.
5HYLHZ
This procedure will be reviewed and amended as required, but in any case at least once a year.
Adjustment Instructions SIPLACE HS-50 2 Operational Safety
Edition 12/00 2.7 ESD Guidelines
55
(6'*XLGHOLQHV
:KDW'RHV(6'0HDQ"
Almost all of the modules in use today are equipped with highly integrated MOS blocks and
components. The manufacturing techniques used mean that these electronic components are
extremely sensitive to over voltage and thus to electrostatic discharge.
The abbreviation for such modules is ’ESD’(Electrostatic Sensitive Device). This is used interna-
tionally, although the German abbreviation ’EGB’ may also be seen.
The following symbol on cabinet rating plates, racks or packaging indicates that components
which are sensitive to electrostatic discharge have been used and thus that the modules con-
cerned are also touch - sensitive.
ESDs can be destroyed by voltages and power levels that are far below the level
that can be perceived by humans. Such voltages occur if a person touches a com-
ponent or module without earthing themselves. Components that are exposed to
such over voltages do not generally appear to be defective immediately - incorrect
behavior starts after the component or module has been in operation
for some time.
,PSRUWDQW0HDVXUHVWR3URWHFW$JDLQVW6WDWLF&KDUJLQJ
Å
Most plastics can easily become charged and must therefore be kept away from at - risk
components.
Å Always ensure that people, the workplace and packaging are safely earthened when handling
electrostatic sensitive components.
+DQGOLQJ(6'0RGXOHV
Å Do not touch electronic modules unless it is absolutely essential to do so in order to carry out
other work.
Å If it is necessary, make sure that you do not touch the pins or printed conductors when you pick
up flat modules.
Å Do not touch components unless
Å you are constantly earthed by an ESD wrist strap or
Å you are wearing ESD shoes or ESD shoe earthing strips on an ESD floor.
Å Always discharge yourself before you touch an electronic module. To do this, simply touch a
conductive and earthed object immediately before you touch the module (such as unpainted
parts of a switch cabinet, a water pipe, etc.).