ABB Distribution Protection Unit 1500R
6-13
Programmable Input and Output Contacts
9/99
website:www.abb.com/papd
Advanced Programmable Logic
Introduction
The programmable logic features in the DPU1500R are designed to provide easy to build logic functions. Virtually any
desired logic scheme can be accomplished through the advanced programmable I/O features in the relay. This application
note explains how to build complex logic schemes in the relay. To describe the various functions, some terms need to
be defined:
Physical Inputs
These are hard wired inputs to the relay. Physical Inputs
1 - 5 are “single ended” inputs and require only a positive
voltage on its terminals only to denote a HIGH state.
Physical Input 6 is “double ended” inputs both positive and
negative voltage on its terminals to denote a HIGH state.
Physical Outputs
These are hard wired “dry” output contacts from the relay.
There are a total of 6 Physical Outputs on the DPU1500R.
The main TRIP output, OUT1, and OUT2 can be configured
for normally open or closed.
OUTPUT TIMERS: Additional time delay can be added to the function by means of the output timers. The time delay
interval is adjustable from 0 to 250 seconds in 0.01 steps.
OUTPUT LABELS: Identifying names can be placed under each of the outputs in the screen shown in Figure 6-4.
Figure 6-3. Programmable Outputs Screen
Programmable Output Contacts - OUT 1 through OUT 6
Up to six (6) user-programmable output contacts are available. Figure 6-4 shows the Programmable Outputs Menu of
the WinECP with some mappings. A solid box means an output contact is mapped.
DPU1500R
Trip Contact
TCM input (must be double-ended input).
+
VDC
52A
52 TC (trip coil)
+
VDC
IN6
Figure 6-4. Trip Coil Monitoring
