Yokogawa DR240 - Manual (Page 67)

3-22 IM DR232-01E
Wiring Input Signal Lines (Universal, DCV/TC/DI, and Digital input modules)
Terminals
Screw type terminal Clamp type terminal* 2
+ -
A B b
DC voltage • TC •
contact
RTD* 1
A
B
b
CH1
CH2
CH10
CH1 CH2
CH3 CH4
CH9 CH10
+
-
*1 There are no RTD
input terminals on
the DCV/TC/DI and
Digital input module.
*2 There is no clamp
type terminal for
Digital input module.
Wiring Diagram
DC voltage input
Compensation lead
DC current input
Shunt resistor
Note:For 4 to 20mA input, shunt
resistance value should
be 250
Ω ± 0.1%
10 Ω * max./leadwire
Three wire resistances
should be approx. equal.
*10 Ω max. for Pt100 Ω and
Pt50 Ω , 1 Ω max. for Cu10 Ω .
DC input
RTD input TC input
DC voltage input/DI input (contact)
b A B
A
b
B
+
-
+ - + -
+
-
+ -
Wiring DC-current Input Signal Lines (mA-input Module)
Diagrams of Terminal Block and Wiring
Model with Screw Terminals Model with Clamp Terminals
+ –
+
– CH1
CH2
CH10
CH1 CH2
CH3 CH4
CH9 CH10
DC-current input
+
–
+ –
3.7 Connecting the Signal Lines