ABB RELION 620 Series Technical Manual page 958

Section 8
Measurement functions
8.1.9.5
Table 927: FMMXU Non group settings (Basic)
Parameter
Operation
F high high limit
F high limit
F low limit
F low low limit
F deadband
Table 928: FMMXU Non group settings (Advanced)
Parameter
Def frequency Sel
8.1.9.6
8.1.9.7
952
Settings
Values (Range) Unit
1=on
5=off
35.00...75.00 Hz
35.00...75.00 Hz
35.00...75.00 Hz
35.00...75.00 Hz
100...100000
Values (Range) Unit
1=Nominal
2=Zero
Monitored data
Table 929: FMMXU Monitored data
Name
f-Hz
F_INST
F_DB
F_RANGE
Technical data
Table 930: FMMXU Technical data
Characteristic
Operation accuracy
Step Default
1=on
1 60.00
1 55.00
1 45.00
1 40.00
1 1000
Step Default
1=Nominal
Type Values (Range)
FLOAT32 35.00...75.00
FLOAT32 35.00...75.00
FLOAT32 35.00...75.00
Enum 0=normal
1=high
2=low
3=high-high
4=low-low
Value
±10 mHz
(in measurement range 35...75 Hz)
1MRS757644 F
Description
Operation Off / On
High alarm frequency limit
High warning frequency limit
Low warning frequency limit
Low alarm frequency limit
Deadband configuration value for integral
calculation (percentage of difference
between min and max as 0,001 % s)
Description
Default frequency selection
Unit Description
Hz Measured frequency
Hz Frequency,
instantaneous value
Hz Frequency, reported
value
Measured frequency
range
Technical Manual
620 series