AV94a HESG440940R11 ABB HESG216791/A Controller Module

AV94a HESG440940R11 ABB HESG216791/A Controller Module

AV94a HESG440940R11 ABB HESG216791/A Controller Module

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Safety Guidelines

? DO NOT open the equipment to perform any adjustments, measurements,

maintenance, parts replacement or repairs until all external power supplies

have been disconnected.

? Only a properly trained technician should work on any equipment with power

still applied.

? When opening covers or removing parts, exercise extreme care as live parts or

connections can be exposed.

? Installation and maintenance must be performed by person(s) qualified for the

type and area of installation according to national and local codes.

? Capacitors in the equipment can still be charged even after the unit has been

disconnected from all power supplies.

Safety First

Various statements in this manual, identified as conditions or practices that could

result in equipment damage, personal injury or loss of life, are highlighted using

the following icons:

Exercise caution while performing this task. Carelessness could

result in damage to the equipment, other property and personal

injury.

STOP. Do not proceed without first verifying that a hazardous

condition does not exist. This task may not be undertaken until

proper protection has been accomplished, or the hazardous

condition has been removed. Personal injury or fatality could

result. Examples of these warnings include:

? Removal of enclosure cover(s) in a hazardous location must

follow guidelines stipulated in the certification drawings

shipped with this unit.

? If the unit is installed or to be installed in a hazardous

location, the technician must follow the guidelines stipulated

in the certification drawings shipped with this unit.

? Access to a unit via a PCCU cable in a hazardous location

must follow guidelines stipulated in the certification drawings

shipped with this unit.

? Connecting or disconnecting equipment in a hazardous

location for installation or maintenance of electric

components must follow guidelines stipulated in the

certification drawings shipped with this unit.

DANGER indicates a personal injury hazard immediately

accessible as one reads the markings.

CAUTION indicates a personal injury hazard not immediately

accessible as one reads the markings or a hazard to property,

including the equipment itself.