ABB REL 551 2.3 Series - Page 116

110
Overload supervision (OVLD) &KDSWHU
9HULI\LQJVHWWLQJVE\VHFRQGDU\
LQMHFWLRQ
 2YHUORDGVXSHUYLVLRQ29/'
Prepare the terminal for verification of settings as outlined in section “Preparing for
test” in this chapter.
 0HDVXULQJWKHRSHUDWHDQGWLPHOLPLWRIVHWYDOXHV
3URFHGXUH
 &KHFNWKDWWKHLQSXWORJLFDOVLJQDOV29/'%/2&.LVORJLFDO
]HURDQGQRWHRQWKHORFDO+0,WKDWWKH29/'75,3ORJLFDOVLJ
QDOLVHTXDOWRWKHORJLFDO
Logical signals for overload supervision protection are available
under menu tree:
6HUYLFH5HSRUW)XQFWLRQV2YHU/RDG)XQF2XWSXWV
 4XLFNO\VHWWKHPHDVXUHGFXUUHQWIDXOWFXUUHQWLQDOOWKUHH
SKDVHVWRDERXWRIWKHVHWWLQJRSHUDWLQJFXUUHQWDQG
VZLWFKRIIWKHFXUUHQWZLWKWKHVZLWFK
Observe the maximum permitted overloading of the current cir-
cuits in the terminal.
 6ZLWFKRQWKHIDXOWFXUUHQWDQGPHDVXUHWKHRSHUDWLQJWLPHRI
WKH29/'SURWHFWLRQ
Use the OVLD-TRIP signal from the configured binary output to
stop the timer.
 &RPSDUHWKHPHDVXUHGWLPHZLWKWKHVHWYDOXHW
 $FWLYDWHWKH29/'%/2&.ELQDU\LQSXW
 6ZLWFKRQWKHIDXOWFXUUHQWRIVHWWLQJDQGZDLWORQJHU
WKDQWKHVHWYDOXHW
No OVLD-TRIP signal should appear.
 6ZLWFKRIIWKHIDXOWFXUUHQW
 5HVHWWKH29/'%/2&.ELQDU\LQSXW
 4XLFNO\VHWWKHPHDVXUHGFXUUHQWIDXOWFXUUHQWLQDOOWKUHH
SKDVHVWRDERXWRIWKHPHDVXUHGRSHUDWLQJFXUUHQWDQG
VZLWFKRIIWKHFXUUHQWZLWKWKHVZLWFK