Digitizers - GE N60 Instruction Manual

CHAPTER 5: SETTINGS

5.8.12 Digitizers

SETTINGS  CONTROL ELEMENTS  DIGITIZERS  DIGITIZER 1(5)
 DIGITIZER 1

There are five digitizer elements. The digitizer truncates the input signal to user-specified symmetrical limits and digitizes
the outcome with an eight-bit resolution. The following equations describe the basic operation of the element.
where
x is an input signal specified by the
LIMIT is defined by the
DIGITIZER 1(5) LIMIT
round is an operand that rounds up to the nearest integer
N is an integer output of the digitizer (from –127 to 127)
out
The figure illustrates the output characteristic of the digitizer element.
N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUAL
Figure 5-143: Frequency rate of change logic
DIGITIZER 1

FUNCTION: Disabled
DIGITIZER 1 SRC:

Off
DIGITIZER 1

LIMIT: 1.000 pu
setting
DIGITIZER 1(5) SOURCE
setting
Range: Disabled, Enabled
Range: Off, any FlexAnalog parameter
Range: 0.050 to 90.000 pu in steps of 0.001
CONTROL ELEMENTS
5
Eq. 5-29
Eq. 5-30
5-263