Yokogawa PC-Based MX100 - Manual (Page 6)

6 IM MX100-72E
• Wiring the 4-Wire RTD Resistance Input Modules
A
B
I
C
A
B
I
C
Votage
Nothing connected to the
I or C terminal
Resistance, RTD
+
Resistance per lead wire of 10 Ω or less
DC voltage
Input Contact
A
B
b
I
+
• DC voltage input/DI (contact) input
• DC current input
• RTD input, resistance input
DC current input
Shunt resistor
Example: For 4 to 20 mA input, shut resistance values should be 250 Ω ±0.1%
Terminal type: Clamp
Applicable wire size: 0.14 to 1.5 mm
2 (AWG26 to 16)
• Wiring the Strain Input Modules
• One-Gauge Method
Setting switch
ON OFF
No.1
No.2
No.3
No.4
No.5
A(+V)
B( L)
C(-V)
D( H)
-B12, -B35 -NDI
Rg
No.1
ON
No.2
ON
No.3
ON
No.4
OFF
No.5
OFF
Rg
Bridge head
(701955 or 701956)
Setting switch
R: fixed resistance
r: resistance value of lead wire
Rg: resistance value of strain gauge
e: output voltage from bridge
E: voltage applied to bridge
SW1
ON
SW2
ON
SW3
ON
SW4
ON
SW5
OFF
1 2 3 4 5 SW
Rg
1
2
3
4
5
6
7
8
ON
OFF
E
e
Rg
R
R
R
• One-Gauge Three-Wire Method
R: fixed resistance
r: resistance value of lead wire
Rg: resistance value of strain gauge
e: output voltage from bridge
E: voltage applied to bridge
ON OFF
No.1
No.2
No.3
No.4
No.5
A(+V)
B(L)
C(-V)
D( H)
Rg
Setting switch
-B12, -B35
No.1
ON
No.2
ON
No.3
OFF
No.4
ON
No.5
OFF
-NDI
Bridge head
(701955 or 701956)
Setting switch
SW1
OFF
SW2
ON
SW3
ON
SW4
ON
SW5
OFF
1 2 3 4 5 SW
Rg
1
2
3
4
5
6
7
8
ON
OFF
R
R
R
Rg
r
r
r
E
e
• Adjacent Two-Gauge Method
Rg1
Rg2
Setting switch
ON OFF
No.1
No.2
No.3
No.4
No.5
A(+V)
B( L)
C(-V)
D( H)
-B12, -B35 -NDI
No.1
ON
No.2
ON
No.3
OFF
No.4
OFF
No.5
ON
Rg1
Rg2
Bridge head
(701955 or 701956)
Setting switch
R: fixed resistance
r: resistance value of lead wire
Rg: resistance value of strain gauge
e: output voltage from bridge
E: voltage applied to bridge
SW1
OFF
SW2
ON
SW3
ON
SW4
ON
SW5
OFF
1 2 3 4 5 SW
Rg1
Rg2
1
2
3
4
5
6
7
8
ON
OFF
Rg1
Rg2
R
R
E
e
5. Wiring Procedure