ABB AC 800M, Hardware And Operation

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Machine Safety Safety Summary
24 3BSE 027 941 R301
Machine Safety
The following safety rules must be observed at all times:
• To avoid discharging static electricity, ground both yourself and any tools
before handling printed circuit boards and other sensitive pieces of the
equipment
• All electronic devices are sensitive to ESD (electrostatic discharge). To avoid
accidental damage while handling printed circuit boards, it is recommended to
wear a wrist strap, grounded to the chassis. The strap must have a built-in
protective resistor
• Anti-static, conductive plastic bags must be used for storage and transport of
PC boards in transit.
Before replacing I/O Units
Maintenance
All procedures for replacing I/O units can be located by referring to the relevant I/O
documentation.
Removing or replacing I/O units with system power connected can cause injury to
personnel and damage to equipment. It is, therefore, of the utmost importance that
the power supply be fully disconnected, on the process side, before removal or
insertion of I/O units takes place
It is recommended that a stock of suitable spare components be maintained to avoid
system downtime.
Ensure that back-up copies of the current application program are made at regular,
predetermined intervals to avoid system downtime.