ABB Distribution Protection Unit 1500R
8-1
Monitoring andControl
9/99
website:www.abb.com/papd
Physical I/O Status
The status of all inputs one through six, outputs one
through six, and the Master Trip output is available with
WinECP. The Physical I/O Status screen (see Figure 8-
1) displays the physical, open/close status of all contact
inputs and the energized/de-energized status of all output
relays. Use this display to confirm continuity through each
optically isolated contact input for both the opened (no
voltage applied) and closed (voltage applied) states and
to confirm the status of each output relay. Input status is
also available through the front-panel MMI by accessing
the Test Menu. Output relay status is not available through
the front-panel MMI.
Logical Input Status
The Logical Input Status screen (Figure 8-2) displays which
functions are enabled or disabled based on the physical
input logic. Use this function to verify the actions of
programmed logic schemes. With this screen it is possible
to view intermediate logic to confirm that the scheme
works correctly and produces the desired results. Note
that the GRD (3I), PH3 (IN), 46 (Insc>), 50-1 (I>>1), 50-2
(I>>2), 50-3 (I>>3), TCM (TCS), ZSC, and SEF* (IO
/
>)
input functions are enabled by default. Therefore, they
need not be mapped to physical inputs in the
Programmable Input Logic Map (see Section 6) if it is
desired to use them. This feature is not available
through the front-panel MMI.
Monitoring and Control
The DPU 1500R contains a unique feature that allows control, testing, and monitoring of relay functions from the front-
panel MMI or WinECP program. It allows monitoring of physical and logical I/O, real-time metering, breaker control (open
and close), alarm reset, and state forcing of both physical and logical I/O. All control actions are password protected.
* SEF model only
Figure 8-1. Physical I/O Status
Figure 8-2. Logical Input Status