Instruction manual

3. DESCRIPTION OF EACH MODULES
IMSRM15-E6
67
3.8 H-DI Module
3.8.1 Outline
The H-DI module is used only for digital input.
The H-DI-A type module is used to select the operation status (memory area selection, control
RUN/STOP selection, or alarm interlock release) of the control unit by using external contacts, etc.
The H-DI-B type module is used to display various event inputs on the operation panel. Each event
input is logically operated (AND, NAND, OR or NOR) and the logical operation result can be also
output from the H-DO-C module.
Up to eight input points can be configured for each H-DI module.
H-DI-A and H-DI-B type
3.8.2 Terminal configuration
H-DI-A and H-DI-B type
DI1 to 4
(4 points/common)
DI5 to 8
(4 points/common)
Digital input
1
2
3
4
5
6
7
8
9
10
24 V DC
24 V DC
+
+
DI 1
DI 2
DI 3
DI 4
DI 5
DI 6
DI 7
DI 8
Connect external power (24 V DC) to the
number 1 and number 6 COM (common)
terminals on the H-DI module so that these
terminal sides become positive (+).