ABB UNITROL 1020 - Page 153

 Chapter 6 - Operation
UNITROL 1020 User Manual 3BHS335648 E82 145
PSS Test Interface
a. The operator switches on/off PSS input signals and injections points
b. The operator selects two test points from the range TP1 … TP16
Both selected signals are shown in the CMT1000 Oscilloscope and are routed to the
analog output
c. The operator adjusts the analog output amplitude
l-shift (0 to 7) is equal to a factor of 2
(I-sift)
Eg. If l-shift equals 2, the analog output is multiplied by factor 4
Scaling of TP can be seen in the table below.
The analog output range can be configured with min (-10V to +10V) and max (-10V to +10V) values
which represent the scaling. All values represent peak values.
TP
Signal Name
Scaling
I-shift
1
Frequency meausurement input
±12.5%
0
2
Frequency washout input
±12.5%
0
3
Frequency washout output
±12.5%
0
4
Ramp Track filter output
±25.0%
1
5
Power Input
±200%
4
6
Power washout input
±200%
4
7
Delta Power integrator output
±25.0%
1
8
Lead lag input
±25.0%
1
9
Lead lag output
±25.0%
1
10
Lead lag output limited
±25.0%
1
11
PID output
±100.0%
3
12
PID output limited
±50.0%
2