192277 - Micron Technical Reference V9 Volume 1.pdf - 第27页
SAFETY FEATURES OVERVIEW Chapter Issue 15, Nov 18 Technical Reference Manual 2.1 CHAPTER 2 SA FETY FEA TURES OVER VIEW The printer incorporates various safety features that provide a safe operating environment for the op…
INTRODUCTION
GLOSSARY
1.16 Technical Reference Manual Chapter Issue 13, May 19
SAFETY FEATURES
OVERVIEW
Chapter Issue 15, Nov 18 Technical Reference Manual 2.1
CHAPTER 2 SAFETY FEATURES
OVERVIEW
The printer incorporates various safety features that provide a safe operating
environment for the operators/maintainers using:
• Safety interlocks ensure that potentially hazardous machine operations
can only be performed when the machine is in a safe condition
• Safety labels to inform the user of areas where danger or residual danger
may exist
All safety circuits have been designed to meet the safety requirements as
outlined in the machines’ CE Declaration of Conformity. The circuits check for
welded contacts before resetting. Additional safety is achieved by duplication of
the power contactors to provide redundancy.
Mains Supply Where incoming hazardous supply voltages are present, protection is afforded
by controlling access to the enclosures that house the supply. The enclosures
require tools to gain access to the inside and must only be opened by suitably
qualified personnel.
The mains isolator switch disconnects the facility mains supply to the power
supply enclosure. Mains supply still exists in the printer, up to the mains isolator
switch.
Hazard warning labels are placed on the outside of enclosures where danger-
ous voltage (100V-240V a.c 50-60Hz) terminations are present within.
Safety Notices Safety notices in the form of PROHIBITION, WARNING, CAUTION and MAN-
DATORY labels are placed on the printing printer and notices are posted
throughout the associated documentation to alert the operator/maintainer to
possible hazards which may cause physical injury or equipment damage.
The following label illustrated below, may be fitted to the printer, this signifies
that the user should refer to the relevant section of the Technical Reference
Manual before attempting to carry out work on the equipment.
SAFETY FEATURES
OVERVIEW
2.2 Technical Reference Manual Chapter Issue 15, Nov 18
Prohibition Notices Prohibition notices draw the attention of users/maintainers to prohibiting behav-
iour likely to cause a risk to health or safety. The following table displays the
prohibition labels affixed to printer and displayed in the printer documentation:
SYMBOL DEFINITION
PROHIBITION
STRONG MAGNETIC FIELD. A STRONG MAGNETIC FIELD EXISTS IN
THE VICINITY OF THE LINEAR MOTORS THAT MAY ACT UPON FER-
ROUS OBJECTS WHOSE MOVEMENTS COULD LEAD TO PERSONAL
INJURY AND/OR DAMAGE TO THE MACHINE.
PROHIBITION
STRONG MAGNETIC FIELD. A STRONG MAGNETIC FIELD EXISTS IN
THE VICINITY OF THE LINEAR MOTORS THAT REPRESENT A SERI-
OUS HAZARD TO PEOPLE FITTED WITH METALLIC IMPLANTS.
PROHIBITION
ELECTROMAGNETIC FIELD. AN ELECTROMAGNETIC FIELD EXISTS
WITHIN THE MACHINE FROM THE LINEAR MOTORS. THESE MAY
PRESENT A HAZARD TO PEOPLE FITTED WITH AN IMPLANTED CAR-
DIAC DEVICE. THE MOTOR MANUFACTURER RECOMMENDS A SAFE
DISTANCE OF AT LEAST 15MM.
PROHIBITION
MACHINE COVERS. IN ORDER TO PROTECT PERSONNEL AND TO
PREVENT DAMAGE TO THE MACHINE, COVERS ARE FITTED TO THE
MACHINE FRAME. THESE PANELS MUST ONLY BE REMOVED BY
SUITABLY QUALIFIED PERSONNEL.