SMC Networks HRW002-H, Operation Manual

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HRX-OM-K003
Chapter 1 Safety
1.5 Safety Measures HRW Series
1-10
1.5.3 Lockout/Tagout

Summary
Lockout in this system disables the main breaker operation to prevent electric
shocks.
Tagout, to be placed on a locked out main breaker, to prevent improper breaker
operation (ON) conducted by other personnel.
See “

Lockout procedure” in the following pages for practical lockout/tagout.
Figure 1-10 Lockout/Tagout

Those who engage in service of this system should build an awareness of
the importance of lockout. Thorough understanding of the procedures
defined in this manual are required for system service.

Lockout is allowed only when the system come to a full stop.

A supervisor should be appointed to direct all personnel if multiple
workers engage in system service.
The supervisor is to perform lockout based on a full understanding of
overall process conditions.

Not only all personnel but new personnel that engage in service of this
system should build an awareness of the importance of lockout and
obtain thorough understanding of the lockout procedure.

Any personnel working in an area with high voltage should be assigned
with padlocks and tags. The key for the padlock is kept under the
responsibility of the supervisor, and lockout release is performed upon
completion of work.
Main breaker
Padlock
Tag
Front