The function outputs the START, TRIP and BLOCKED signals which can be used for direct I/O
controlling and user logic programming. The function generates general time-stamped ON/OFF events
to the common event buffer from each of the three (3) output signals. In the instant operating mode the
function outputs START and TRIP events simultaneously with an equivalent time stamp. The time stamp
resolution is 1 ms. The function also provides a resettable cumulative counter for the START, TRIP and
BLOCKED events.
The following figure presents a simplified function block diagram of the undervoltage function.
Figure. 5.3.11 - 121. Simplified function block diagram of the U< function.
Measured input
The function block uses analog voltage measurement values. The monitored voltage magnitudes
are equal to RMS values. A -20 ms averaged value of the selected magnitude is used for pre-fault data
registering.
Table. 5.3.11 - 108. Measurement inputs of the U< function.
Signal
Description
Time base
U
L12
RMS
RMS measurement of voltage U
L12
/V
5ms
U
L23
RMS
RMS measurement of voltage U
L23
/V
5ms
U
L31
RMS
RMS measurement of voltage U
L31
/V
5ms
U
L1
RMS
RMS measurement of voltage U
L1
/V
5ms
U
L2
RMS
RMS measurement of voltage U
L2
/V
5ms
U
L3
RMS
RMS measurement of voltage U
L3
/V
5ms
A
AQ
Q-M215
-M215
Instruction manual
Version: 2.04
171
Содержание AQ-M215
Страница 1: ...AQ M215 Motor protection IED Instruction manual ...
Страница 410: ...Figure 7 4 242 Example block scheme A AQ Q M215 M215 Instruction manual Version 2 04 409 ...
Страница 432: ...Figure 8 14 265 Panel cutout dimensions and device spacing A AQ Q M215 M215 Instruction manual Version 2 04 431 ...
Страница 466: ...10 Ordering information A AQ Q M215 M215 Instruction manual Version 2 04 465 ...