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Installation and Operation Manual for Inverter RPI M50A_12s V1 EU EN 2017-03-09
8 Settings
8.4.4.3 Frequency protection
These parameters are set according to the
requirements of the selected country. Changing
these parameter settings can invalidate the type
approval of the unit. Change this setting only after
consultation with Delta customer service.
Overview
To change this setting, you need a special pass-
word provided by Delta customer service. You
can find the contact information on the back of
this document.
This function allows you to defined the behavior of the inverter in
the case of grid overfrequency or underfrequency.
Setting options
Parameter Description Setting range
High Off
Frequency high off
45 .. 65 Hz
High On
Frequency high on
45 .. 65 Hz
High Off T
Disconnection time for frequency high off
0.0 .. 5.0 s
Low Off
Frequency low off
45 .. 65 Hz
Low On
Frequency low on
45 .. 65 Hz
Low Off T
Disconnection time for frequency low off
0 .. 5.0 s
Hi Off Slow
Frequency high off slowly
45 .. 65 Hz
Lo On Slow
Frequency low on slowly
45 .. 65 Hz
Hi Off Sl T
Disconnection time for frequency high off slowly
0 .. 600 s
Lo Off Slow
Frequency low off slowly
45 .. 65 Hz
Lo On Slow
Frequency low on slowly
45 .. 65 Hz
Lo Off Sl T
Disconnection time for voltage low off slowly
0 .. 600 s
Menu item path
Main Menu > Install Settings > Grid Settings > Freq.
Protection
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