ABB ACS880 User Manual page 12

Prevention of unexpected start-up (option +q957) multidrives

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12 Option description and instructions

Note: Drives with the Emergency stop, stop category 1 function (option +Q952 or +Q964):

If the user activates the POUS function during the emergency stop deceleration ramp, it

overrides the emergency stop function. This activates the STO function of the drive

immediately and the motor coasts to a stop. For more information on the emergency stop

function, see the appropriate user's manual.

The design principles of the option +Q957 comply with EN 1037.

The STO function complies with EN/IEC 61800-5-2:2007.

For a complete list of related standards and European directives, see section

standards and directives

on page 23.

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