Azbil RJ-1 Series - Page 19

19
AB-7329
Two sample wirings are shown below.
(1) UIO1 Pt100 input, UIO2 Pt1000 input, UIO3 main
input voltage input, UIO4 main/auxiliary input current
input
UIO4 B
UIO4 A
Pt100
UIO1 A
UIO1 B
Internal
cuicuit
UIO1 C
UIO2 A
RTD
input
Pt1k
UIO2 B
UIO2 C
1 MΩ
min.
UIO3 A
UIO3 B
R
Voltage/
current
input
UIO3 C
- +
100 Ω
min.
R
UIO4 C
R
- +
Isola-
tor
-
+
R
(2) UIO1 current output, UIO2 voltage output, UIO3
digital input, UIO4 main/aux input voltage input
- +
Internal
circuit
UIO1 A
UIO1 B
UIO1 C
UIO4 A
UIO4 B
Voltage
input
1 MΩ
min.
UIO4 C
R
R
R
- +
Dry contact or
open collector
Contact
current
1 mA typ.
Digital
input
- +
load
- +
Voltage/
current
input
load
load
UIO2 A
UIO2 B
UIO2 C
UIO3 A
UIO3 B
UIO3 C
Isola-
tor
z Notes
(1) Connected devices should have insulated outputs.
(2) Be careful of the input polarity of the connected
device.
(3) Do not change the input settings of this product
while the connected device is powered on.
Failure to do so will cause malfunction of this
product and load failure.
(4) For AI (current or voltage), two inputs can be used
for one terminal block.
Use isolator since main-sub inputs are not insulated.
(5) When this product is turned o󰀨, the loop may
be disconnected by the output capacity of the
connected devices.
In order to secure the current loop, it is necessary
to set the input voltage of this product to 1–5 V and
provide a 250 Ω resistor externally.
In this case, use an external 250 Ω resistor that
satises the following specications.
• Allowable tolerance: ±0.05%, temperature character-
istic: ±30 ppm, rated power: 1/4 W min.
Current
output
＋
＋
＋
＋
－
－
－
－
－
－
4-20mA
J-IOM-UIO
Current
input device
Current
output
-
+
J-IOM-UIO
Current
input device
250Ω
4-20mA
4-20mA
1-5V
4-20mA
1-5V
CORRECT
INCORRECT
(6) Since the wiring resistance causes an error for the
Pt100 and Pt1000, wires with a cross-sectional area
of 1.25 mm
2
is recommended.
(7) For voltage output, the input impedance of the
connected device should be 10 kΩ or higher.
(8) For current output, the sum of the input impedance
and the wiring resistance of the connected device
should be equal to or lower than 500 Ω.
(9) To connect a relay to a digital input, use a relay of
which minimum applicable load is lower than the
digital input current.
We recommend a relay with a minimum applicable
load of 0.1 mA or lower.