16
SECTION 7
：
CONTROL PANEL SYSTEM
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Safety rules for control system
1.
Do not alter or bypass any protective interlocking systems.
2.
All electrical/electronic trouble shooting and repairs should be undertaken only by personnel who are
properly trained and skilled.
3.
Do not alter the electrical circuits unless authorized to do so by the machine manufacturer.
4.
Be fore starting the machine, read and observe all warning labels and markings such as the name plates
and indication plated.
5.
Be alert and make sure you work without outside distractions.
6.
Make sure your tools and body are clear of forming an electrical ground.
7.
The control panel doors should be opened only when it is necessary to check out the electrical
equipment or electrical wiring.
8.
Take extra precautions in damp environments to protect you from accidental grounding.
9.
Be fore applying power to any equipment; ensure without doubt that all persons are clear.
10.
When replacing conductors make sure they conform to the manufacturers specifications, including
correct color coding.
11.
Avoid wearing metal frame glasses or metallic necklaces and chains. Never use electrical equipment
while wearing rings, watches or bracelets.
12.
Give capacitors time to discharge. Otherwise it should be done manually with care.
13.
Always assume that electrical power is “ON” and treat the circuit as live. The habit will help prevent
accidents.
14.
Use correct testing equipment to make certain you have an open circuit. Test equipment must be
checked and calibrated at regular intervals.
15.
Do not alter over current protective devices.
16.
All covers on the junction boxes must be closed before leaving any job.
