ABB REL 551 2.3 Series - Page 120

114
Setting lockout (HMI) &KDSWHU
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Prepare the terminal for verification of settings as outlined in section “Preparing for
test” in this chapter.
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Reading of the values must be possible.
The terminal must not respond to any attempt to change the setting
value or configuration.
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The terminal must accept the changed setting value or configura-
tion.
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Continue to test another function or complete the test by setting the test mode to off.
Restore connections and settings to the original values, if they were changed for testing
purpose.