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OPERATING INSTRUCTIONS NORDAC Frequency Inverters

OPERATING INSTRUCTIONS NORDAC Frequency Inverters

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Menu displayed text description<br />

option<br />

18<br />

14 F r e q u e n c y r e l a y Floating contact at Terminals 19/20<br />

5 0 . 5 H z P 1 - closes ---> output frequency exceeds the set value<br />

- opens ---> output frequency drops below the set value<br />

VALUE keys ---> set frequency required<br />

15 M u l t i f u n c t . r e l a y VALUE keys ---> function frequency - signals a further frequency, chosen<br />

c u r r e n t P 1 ---> function current - signals a variable current, set<br />

16 F u n c t . f r e q u e n c y With function selected ---> frequency<br />

2 . 0 H z P 1 - as described under option 14<br />

- but signalling at Terminals 17/18<br />

- contact closes if the set frequency is exceeded<br />

17 F u n c t i o n c u r r e n t With function selected ---> current<br />

. . . A P 1 Floating contact at terminals 17/18<br />

- closes ---> output current exceeds the set value<br />

- opens ---> output current drops below the set value minus the<br />

value set with the sensitivity (option 18)<br />

18 S e n s i t i v i t y Function: setting a switch-off threshold<br />

1 5 % P 1<br />

Aim: avoids persistent switching of the multifunction relay<br />

in the "current" function on slight current fluctuations

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