PM866K01 3BSE050198R1 ABB Controller DCS ac800m module

PM866K01 3BSE050198R1 ABB Controller DCS ac800m module

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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, batteries, memory cards, 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.

All procedures for replacing units can be located by referring to the relevant

documentation.

Removing or replacing 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 units takes place.

See Online Replacement of Unit on page 206 and I/O documentation.

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.