Sel SEL-751 - User Manual

q SELECT Power Supply With I/O (Slot A)
w SELECT Processor and Communications Card (Slot B)
e SELECT I/O Expansion Card (Slot C: see table)
r SELECT I/O Expansion Card (Slot D: see table)
t SELECT I/O Expansion Card (Slot E: see table).
y SELECT 4ACI/3AVI or 4ACICard (SlotZ)
u Device Case
i Rear-Panel Mounting Screws
o Rear Panel
Refer to the Model Option Table on the SEL website for ordering details
Rear-Panel Slot
Card Type A B C D E Z
SELECT PSIO/2 DI/3 DO
a
● n/a n/a n/a n/a n/a
SELECT CPU/COM
a
n/a ● n/a n/a n/a n/a
SEL
ECT EIA-232/EIA-485
n/a n/a
● n/a n/a n/a
SELECT DeviceNet
n/a n/a ● n/a n/a n/a
SEL
ECT 3 DI/4 DO/1 AO (one card per relay)
n/a n/a
● ● ● n/a
SELECT 4 DI/4 DO
n/a n/a ● ● ● n/a
SEL
ECT 4 DI/3 DO (1 Form B, 2 Form C)
n/a n/a
● ● ● n/a
SELECT 8 DI
n/a n/a ● ● ● n/a
SEL
ECT 14 DI
n/a n/a
● ● ● n/a
SELECT 8 DO
n/a n/a ● ● ● n/a
SEL
ECT 8 AI
n/a n/a
● ●
●
n/a
SELECT 4 AI/4 AO (one card per relay)
n/a n/a
● ●
● n/a
SEL
ECT 10 RTD
n/a n/a n/a
●
n/a n/a
SELECT 2 AVI/4 AFDI (MOT…x70x…)
n/a n/a n/a n/a ● n/a
SEL
ECT 2 AVI/4 AFDI (MOT…xL0x…)
n/a n/a n/a n/a
● n/a
SELECT 8 AFDI (MOT…x77x…)
n/a n/a n/a n/a
●
n/a
6
7
8
9
1
2
3
4
5
SEL-751 Card Options

Summary

Safety Warnings and Cautions

DANGER

Disconnect or de-energize all external connections before opening this device.

WARNING

Have only qualified personnel service this equipment. You can injure yourself or others.

CAUTION

Equipment components are sensitive to electrostatic discharge (ESD).

Card Installation Procedure

Slot B CPU Card Replacement

Slot A Power Supply Card Replacement

Sel SEL-751 Specifications

General

Type	Feeder Protection Relay
Frequency Range	50/60 Hz
Voltage Input Range	50 to 300 V AC
Current Rating	5 A
Communication Protocols	DNP3, Modbus
Mounting	Panel mount
Display	LCD
Protection Functions	Overcurrent, Frequency
Operating Temperature	-40 to +85 °C