R3-AR4
5-2-55, Minamitsumori, Nishinari-ku, Osaka 557-0063 JAPAN
Phone: +81(6)6659-8201 Fax: +81(6)6659-8510 E-mail: [email protected]
EM-8433 Rev.3 P. 3 / 4
TERMINAL CONNECTIONS
Connect the unit as in the diagram below.
■
EXTERNAL DIMENSIONS unit: mm (inch)
1
11
12
13
14
15
16
17
18
19
20
2
3
4
5
6
7
8
9
10
130 (5.12)
27.5 (1.08)
109 (4.29)
POSITIONING
GUIDE
TERMINAL
COVER
20–M3
SCREW
6.2
(.24)
■
CONNECTION DIAGRAM
1
2
INPUT 1
3
4
INPUT 2
6
7
INPUT 3
8
9
INPUT 4
100Ω
11
13
16
18
• Unused Input Channels
Close across the unused input terminals with a resistor as
shown below and set the DIP switch for Pt 100 input.
Unused channels left open are equal to the burnout,
which turns the red ERR LED on and sets a burnout flag at
the PLC or the host device.
Connecting the resistor means approx. 0°C. An alarm
setpoint must be set to a value that does not trip an
unwanted alarm.
Unused channels can be specified and set so on the PC
Configurator Software (model: R3CON) without needing to
connect resistors at the field terminals.
A
B
B
RTD
1
2
11
3
4
13
6
7
16
8
9
18
*
For dual redundant communication.
INPUT 1
A
B
B
A
B
B
A
B
B
RTD
INPUT 2
RTD
INPUT 3
RTD
INPUT 4
BUS CONNECTOR
INTERNAL POWER
INTERNAL BUS A
INTERNAL BUS B
*
