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10.2.6.1
VMHAI Input signals
Table 705: VMHAI Input signals
Name
Type
Default
Description
U_A_AB
SIGNAL
0
Phase-to-earth volt-
age A or phase-to-
phase voltage AB
U_B_BC
SIGNAL
0
Phase-to-earth volt-
age B or phase-to-
phase voltage BC
U_C_CA
SIGNAL
0
Phase-to-earth volt-
age C or phase-to-
phase voltage CA
BLOCK
BOOLEAN
0=False
Block signal for all bi-
nary outputs
10.2.6.2
VMHAI Output signals
Table 706: VMHAI Output signals
Name
Type
Description
ALARM
BOOLEAN
Alarm signal for THD
10.2.7
Settings
10.2.7.1
VMHAI Non group settings (Basic)
Table 707: VMHAI Non group settings (Basic)
Parameter
Values (Range)
Unit
Step
Default
Description
Operation
1=on
5=off
1=on
Operation Off / On
Demand interval
0=1 minute
1=5 minutes
2=10 minutes
3=15 minutes
4=30 minutes
5=60 minutes
6=180 minutes
2=10 minutes
Time interval for
demand calculation
Demand window
1=Sliding
2=Non-sliding
1=Sliding
Demand calculation
window type
THD alarm limit
1.0...100.0
%
0.1
50.0
THD alarm limit
Power quality measurement functions
1MRS758755 C
706
REC615 & RER615
Technical Manual