Instruction Manual

7
E SR-750 UM
 Control cable (NFPA79-compliant) with D-Sub9 pin
z RS-232C wire
The tip of the RS-232C wire is a D-sub9-pin.
z Control wire (Input/Output signal wire)
The tip of the control wire is a rod terminal.
z Power wire
The tip of the power wire is a Y-shape terminal.
Connecting the FG wire
Be sure to provide Class D ground for the FG wire.
NOTICE
The shield and FG wire of the control cable and the shield of the
Ethernet cable are electrically connected via the main unit case.
Provide them with a common ground.
D-sub9 pin (Female)
DTE specifications (Terminal definition)
M2.6 screw
54321
9876
Pin No. Symbol Description Signal direction
2 TXD Data Send Output
3 RXD Data Receive Input
5 SGND Signal GND -
Wire color Symbol Description
Green IN1 IN1 Input
Gray IN2 IN2 Input
White and blue INCOM Input common
Pink OUT1 OUT1 Output
Aqua blue OUT2 OUT2 Output
White OUT3 OUT3 Output
Black OUTCOM Output common
1 mm
10 mm
Wire color Symbol Description
Brown 24 V +24 V Power supply
Blue 0 V Power supply GND
Black tube FG FG
6.6 mm
11 mm
4.3 mm
FG Black tube
IN1/IN2 wire connection
• The IN1 (timing) input means the input that causes the SR-750 Series to start
reading.
• The IN2 (preset) input means the input that causes the SR-750 Series to register
preset data.
IN1/IN2 inputs operate by voltage inputs.
• Input rating : 15 - 26.4 V DC
• Repetitive peak off-state current : 0.2 mA
 Connecting a photoelectric sensor manufactured by
KEYENCE
Connection example when the IN1 terminal is used as the trigger input terminal.
Connecting the OUT1/OUT2/OUT3 wires
• The OUT1 (OK) output is used as an output for successful reading and
verification of OK as a result of checking against the preset data.
• The OUT2 (NG/ERROR) output is used as an output for reading failure and
verification of NG reading as a result of checking against the preset data.
• OUT3 (BUSY) is output any time the trigger input cannot be accepted. For
example, a busy signal will be output at initial start-up, during the key operation,
reading operation, etc.
The output form of each signal is photo MOS relay.
• Maximum rated load : 30 V DC (1 output maximum 50 mA, 3 outputs
total 100 mA or less)
• Leakage current when OFF : 0.1 mA or less
• Residual voltage when ON : 1 V or less
 Connection with KEYENCE PLC (Programmable
controller)
10kΩ
+
5.6kΩ
Photocoupler isolation
Contact
or
non-contact
Internal circuit
IN1 (Green)
IN2 (Gray)
INCOM
(White and blue)
IN1
(Green)
INCOM
(White and blue)
Brown (red)
Black (white)
Blue (black)
Photoelectric Sensor (NPN)
+
Internal circuit
Load
OUT 1(Pink),
OUT2 (Aqua blue),
OUT3 (White)
OUT COM
(Black)
0002
0001
0000
C
PLC
OUT
COM
(Black)
OUT
1
(Pink)
OUT
2 (Aqua
blue)
OUT
3
(White)