Schweitzer Engineering Laboratories SEL-787 - Table 2.4 Current;Voltage Card Terminal Allocation; Table 2.5 Four Analog Input;Four Analog Output (4 AI;4 AO) Card Terminal Allocation; Table 2.6 I;O (3 DI;4 DO;1 AO) Card Terminal Allocation

2.6
SEL-787 Relay Instruction Manual Date Code 20081022
Installation
I/O Configuration
Current/Voltage Card
(1 ACI/3 AVI or 1 ACI)
Supported in Slot E only, order this card option when you have either single-
or three-phase (wye or delta) PTs and/or neutral ac current input (1 A or 5 A
nominal). With this card installed, the SEL-787 tracks the frequency (using
positive-sequence voltage) and samples at 16 times a cycle—see Processing
Specifications on page 1.10 for more information. The pin connections remain
the same for the 1 ACI card, which only supports the neutral current input.
Analog Input/Output
Card (4 AI/4 AO)
Supported in any one of the nonbase unit slots (Slot C, D, or E), this card has
four analog inputs (AI) and four analog outputs (AO). Table 2.5 shows the
terminal allocation.
I/O Input Card
(3 DI/4 DO/1 AO)
Supported in one nonbase unit slot (Slot C, D, or E), this card has three digital
inputs, four digital outputs, and one analog output. Table 2.6 shows the
terminal allocation.
Table 2.4 Current/Voltage Card Terminal Allocation
Ter min a l N u m b er Designator Description
01 VA Phase A voltage input
02 VB Phase B voltage input
03 VC Phase C voltage input
04 N Return for VA, VB, VC
09, 10 IN1 Neutral current input 1
NOTE: The relay tracks the
frequency if 3V1 is greater than 0.75 V.
Table 2.5 Four Analog Input/Four Analog Output (4 AI/4 AO) Card Terminal
Allocation
Ter m i na l N umb e r Software Reference, Description
a
a
x = 3, 4, or 5 (e.g., AI401, AI402, etc., if the card was installed in Slot D).
01, 02 AOx01, Analog Output number x01
03, 04 AOx02, Analog Output number x02
05, 06 AOx03, Analog Output number x03
07, 08 AOx04, Analog Output number x04
09, 10 AIx01, Transducer Input number x01
11, 12 AIx02, Transducer Input number x02
13, 14 AIx03, Transducer Input number x03
15, 16 AIx04, Transducer Input numberx04
Table 2.6 I/O (3 DI/4 DO/1 AO) Card Terminal Allocation
Terminal Nu mber Software Reference, Description
a
a
x = 3, 4, or 5 (e.g., OUT401, OUT402, etc., if the card was installed in Slot D).
01, 02 OUTx01, driven by OUTx01 SELOGIC equation
03, 04 OUTx02, driven by OUTx02 SEL
OGIC equation
05, 06 OUTx03, driven by OUTx03 SEL
OGIC equation
07, 08 OUTx04, driven by OUTx04 SEL
OGIC equation
09, 10 AOx01, Analog Output Number 1
11, 12 INx01, drives INx01 element
13, 14 INx02, drives INx02 element
15, 16 INx03, drives INx03 element