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Chapter 6. MAINTENANCE AND TROUBLESHOOTING
■
How to replace the fuse
CAUTION
When touching internal parts, touch a grounded metal part to discharge static
electricity from the body. Otherwise, static electricity may damage components.
Before replacing the fuse, be sure to turn the power OFF. Failure to do so
might cause electric shock.
Be sure to use a fuse having an electrical rating of 250V, and 0.5A for
replacement. Use of a non-rated fuse prevents the safety circuit from
functioning properly.
●
Needed items
Phillips screwdriver
Fuse: Made by Cooper Bussmann U K Ltd: Model No. S504 500mA (250V, 0.5A)
Made by Littelfuse: Model No. 218.500 (250V, 0.5A)
Standard
IEC127
Fuse blowout speed
Time-lag
Rated voltage
250V
Rated current
0.5A
●
Replacement procedure
(1)
Loosen the four screws on the operation panel/display.
(2)
Gently lift up the operation panel/display.
(3)
Remove the fuse cover.
For details, see
Chapter 2. NAMES AND FUNCTIONS OF PARTS
.
(4)
Remove the fuse.
(5)
Attach the new fuse.
(6)
Attach the fuse cover.
(7)
Attach the operation panel/display in its original position on the
sensor/terminal section.
Handling Precautions
When a fuse blows, check for abnormal power voltage, miswiring, or other
causes of the fuse having blown.
Replacement of parts is precision work. Take sufficient care not to lose or
damage removed components.
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