2.9
Date Code 20150130 Instruction Manual SEL-787 Relay
Installation
I/O Configuration
I/O Card (4 DI/4 DO)
Supported in any nonbase unit slot (Slot C, D, or E), this card has four digital
inputs and four outputs. The four outputs are either all normally open contact
outputs or all fast hybrid (high-speed, high-current interrupting) outputs.
Table 2.9 shows the terminal allocation.
I/O Card (8 DI)
Supported in any nonbase unit slot (Slot C, D, or E), this card has eight digital
inputs. Table 2.10 shows the terminal allocation.
Table 2.9 Four Digital Input/Four Digital Output (4 DI/4 DO) Card Terminal
Allocation
Side-Panel
Connections Label
Term i nal
Number
Description
a
a
x=3, 4, or 5 (for example, OUT401, OUT402, etc., if the card was installed in Slot D).
01, 02 OUTx01, driven by OUTx01 SELOGIC
control equation
03, 04 OUTx02, driven by OUTx02 SEL
OGIC
control equation
05, 06 OUTx03, driven by OUTx03 SEL
OGIC
control equation
07, 08 OUTx04, driven by OUTx04 SEL
OGIC
control equation
09, 10 INx01, drives INx01 element
11, 12 INx02, drives INx02 element
13, 14 INx03, drives INx03 element
15, 16 INx04, drives INx04 element
NOTE: All digital inputs and digital
outputs (including high-current, high-
speed hybrid) connections are polarity
neutral.
INPUTS:
IN_0 1
IN_02
IN_03
IN_04
OUT_0 1
OUT_02
OUT_03
OUT_04
08
05
06
02
04
09
03
10
11
12
13
14
15
16
07
01
Table 2.10 Eight Digital Input (8 DI) Card Terminal Allocation
Side-Panel
Connections Label
Term i nal
Number
Description
a
a
x=3, 4, or 5 (e.g., OUT401, OUT402, etc. if the card was installed in Slot D).
01, 02 INx01, drives INx01 element
03, 04 INx02, drives INx02 element
05, 06 INx03, drives INx03 element
07, 08 INx04, drives INx04 element
09, 10 INx05, drives INx05 element
11, 12 INx06, drives INx06 element
13, 14 INx07, drives INx07 element
15, 16 INx08, drives INx08 element
INPUTS:
08
05
06
02
04
09
03
10
11
12
13
14
15
16
07
01
IN_0 1
IN_02
IN_03
IN_04
IN_05
IN_06
IN_07
IN_08
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