Toshiba T2N - Manual (Page 51)

2.Specification
36 PROSEC T2N
Item
A121
(EX10*MA121)
A131
(EX10*MA131)
Input range 1 - 5V or 4 - 20mA 0 - 10V
Input Impedance 1 - 5V : 500K Ω or more
4 - 20mA : 250 Ω
500K Ω or more
Number of input points 4 points (N side common) 4 points (N side common)
Resolution 1 - 5V : 0 - 250
4 - 20mA : 0 - 250
0 - 10V : 0 - 250
Overall Accuracy ± 1% (FS) ± 1% (FS)
4 point (N side common) Approx. 1msec Approx. 1msec
Wire breakage detection Only possible for 4-20mA -
External Power
Supply failure detection
Yes Yes
Withstand voltage 500Vac / 1 minute 500Vac / 1 minute
Current consumption 50mA 5Vdc or less 50mA 5Vdc or less
External power required 12 - 24Vdc
±
10% - 50mA 12 - 24Vdc
±
10% - 50mA
Weight Approx. 200g Approx. 200g
The AI21 type is set to
current input (4-20mA)
at the factory.
For voltage (1-5V) input,
set J1 - J4 to the V side.
Terminal Connections
Isolate external power supply line
(12 - 24Vdc) from other signal
lines.
Use shielded twisted-pair cables
for analog signals, and ground
the shields securely.
-
+
P
P
P
N
N
N
N
P
12-24Vdc
(50mA)
CH4
CH3
CH2
CH1
Circuit Configuration
Set for current at the factory
J1, J2, J3, J4 jumper plugs are AI21
type only.
• I side : for current (4 - 20mA)
• V side : for voltage (1-5V)
12-24Vdc
(50mA)
Power source display LED
CH4
CH3
CH2
CH1
Constant voltage circuit
Internal Circuit A/D Converter
J1
I V
J2
I V
J3
I V
J4
I V
4-Channel Analog Input
Input(8-bit)
4-20mA/1-5V
AI21
RUN
1N
1P
CH1
1N
1P
CH2
1N
1P
CH3
1N
1P
CH4
-
12-24Vdc+