Instruction manual

3. DESCRIPTION OF EACH MODULES

IMSRM15-E6

3.8.3 Functional description

(1) Digital input function (H-DI-A)

This is a function to switch the operation status of the control unit (refer to below) using the external

signal fed into the H-DI-A module which is connected to the control unit. The operation status can be

switched over by the open/close state of the digital input terminals 1 to 8 of the H-DI-A module.

Operation state types: Memory area selection, Control RUN/STOP selection and Alarm interlock release

For memory area selection, configure an external contact circuit or use a contact output signal from the

PLC, if necessary.

After the contact is closed, it takes a short time until the action of this device is actually selected.

Therefore, pay attention to this delay time if the device is used together with a PLC, etc.

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 (+).

Control area

Terminal No.

1 2 3 4 5 6 7 8

1 - 2

1 - 3

1 - 4

: Open : Closed

The memory area (control area) is established by closing terminal number 5

(ENABLE terminal). [Function mode 1*]

* The function mode types below can be selected for the digital input function of the H-DI-A

module. The digital inputs (DI) function can be set following function mode 1 to 2 in

operation panel or host communication (initialize settings [extended communications]).

Function mode 1 (factory set value)

Memory area selection (ENABLE terminal is used)

After area selection setting, the actual area is changed by detecting the ENABLE edge.

Control RUN/STOP selection

Alarm interlock release

Function mode 2

Memory area selection

The actual area is changed approximately 2 seconds after area selection setting.

Control RUN/STOP selection

Alarm interlock release

Alarm interlock release (contact closed: alarm interlock release)

(No alarm interlock function is activated if the contact is in the normally closed

state.)

Control RUN/STOP selection (contact closed: RUN, contact open: STOP)

Unused

(COM)

(1)

(2)

(4)

SET