ABB Distribution Protection Unit 1500R
6-1
Programmable Input and Output Contacts
9/99
website:www.abb.com/papd
Programmable Input and Output Contacts
By using the Windows External Communications Program, you can individually program the contact inputs and certain
output contacts.
Binary (Contact) Inputs
Binary inputs are either programmable single-ended or programmable double-ended. Single-ended inputs have one
terminal connection marked “+” and share a common terminal (# 3) marked “–”. Double-ended inputs have two
terminal connections, marked “+” and “–”. The recognition time for the change in state of an input is two (2) cycles.
Programmable contact inputs with factory default settings include the following:
•
52a (XO)
Breaker Position: Breaker Closed (input closed)/Breaker Open (input open)
•
52b (XI)
Breaker Position: Breaker Open (input closed)/Breaker Closed (input open)
•
43a (AR)
Reclose Function: Enabled (input closed)/Disabled (input opened)
Up to six user-programmable contact inputs are available. The inputs are programmed via the Windows External
Communications Program only. Nine (ten for SEF models) logic functions remain operational (enabled) when not
assigned to contact inputs in the Programmable Input Map. These logic functions are: GRD (IN), PH3 (3I), 46 (Insc>),
50-1(I>>1), 50-2 (I>>2), 50-3 (I>>3), TCM (TCS), ZSC and SEF* (IO
/
>). You must assign the remaining logic functions
to contact inputs for those functions to become operational (enabled). The user-programmable inputs can monitor,
enable, initiate or actuate the logic functions shown in Table 6-1. The programmable inputs in the table are arranged in
the order they appear on the default Programmable Inputs screen.
Figure 6-1 shows the factory default settings for mapping the programmable inputs. The color red is used when a
closed contact (voltage present) enables the function and the color white is used when an open contact (voltage
absent) enables the function. Place the label in the column under the desired contact input’s line. For example, based
on the factory default settings, you must apply control power to Input 1 to enable logic input contact 52a (XO).
Figure 6-1. Programmable Inputs Screen