ABB OMD800 - Page 42

42
AUTOMATIC CONTROL UNIT, OMD800
Voltage Thresholds
User can set separately Line 1 and Line 2 voltage thresholds both minimum and maximum values.
Factory settings are min -20 % and max +20 %. On the Table 7.8 are shown values, which are valid when
auxiliary power supply (AUX) is not used. Values of the Voltage Threshold Max LN1 and Voltage
Threshold Max LN2 are also used as the voltage unbalance level.
Voltage Tresholds
Volt Treshold Min LN2
Volt Treshold Max LN1
Volt Treshold Max LN2
4/4
A07152
Voltage Tresholds
Volt Treshold Min LN1
Volt Treshold Min LN2
Volt Treshold Max LN1
1/4
KA00274
Figure 7.30 Voltage Thresholds (min and max) settings for Line 1 and Line 2
Voltage Tresholds
Volt Treshold Min LN1
Volt Treshold Min LN2
Volt Treshold Max LN1
1/4
KA00274
Volt Treshold Min LN1
–20 %
KA00330
Cancel EditOK
Voltage Tresholds
Volt Treshold Min LN1
Volt Treshold Min LN2
Volt Treshold Max LN1
3/4
A07151
Volt Treshold Max LN1
+20 %
KA00331
Cancel EditOK
Figure 7.31 Voltage Threshold LN1, factory settings: min -20%, max 20%
Device Configuration
Digital Inputs
Digital Outputs
Voltage Tresholds
3/12
A07148
3 phases
Voltage / V Voltage threshold
Min Max
100/57
115/66
120/70
-20 %
-30 %
-30 %
+30 %
+30 %
+30 %
208/120
220/127
230/132
-30 %
-30 %
-30 %
+30 %
+30 %
+30 %
240/138
27 7/16 0
3 47/2 00
-30 %
-30 %
-30 %
+30 %
+30 %
+30 %
380/220
400/230
415/240
-30 %
-30 %
-30 %
+30 %
+30 %
+30 %
440/254
480/277
-30 %
-30 %
+30 %
+20%
Table 7.8 Values for Voltage Thresholds suitable for different Rated Voltages in 3 phases and 1
phase system.
1 phases
Voltage / V Voltage threshold
Min Max
208/120
220/127
230/132
-20 %
-20 %
-25 %
+30 %
+30 %
+30 %
240/138
27 7/16 0
3 47/2 00
-30 %
-30 %
-30 %
+30 %
+30 %
+30 %
380/220
400/230
415/240
-30 %
-30 %
-30 %
+30 %
+30 %
+30 %
440/254
480/277
-30 %
-30 %
+30 %
+20 %
If the AUX is used, Min is -30 % and Max is according to this table.