6. OPERATIONS OF THE BASIC FUNCTIONS
IMR02C15-E4
6-41
Interlock release by digital input (DI)
Interlock release by the digital input (DI) is possible with the DI assignment of the Engineering mode.
For the DI assignment, refer to 8.5 Engineering Mode (P. 8-95).
Terminal configuration
DI2: Interlock release input
Contact closed: Interlock release
Contact input from external devices or equipment should be dry contact
input. If it is not dry contact input, the input should have meet the
specifications below.
Contact specifications: At OFF (contact open) 500 kΩ or more
At ON (contact closed) 10 Ω or less
Digital input (DI1, DI2)
DI 1
DI 2
15
13
14
COM (-)
RB100
COM (-)
DI 1
DI 2
18
16
17
RB400/500/900
DI 1
DI 2
24
22
23
COM (-)
RB700
Transfer timing of Interlock release
The interlock release operation is taken when DI contact is closed from the open condition (rising
edge).
After the contact is closed, it takes “250 ms + 1 sampling cycle *” until the action of this
instrument is actually selected.
* Sampling cycle: 250 ms
No event interlock can be released when in the event state. Release the event interlock after
the cause of the event is cleared up.
If switched by digital input (DI), the interlock release state is not stored in EEPROM.
* To make contact activation valid, it is necessary to maintain
the same contact state (contact closed) for more than 250 ms.
Rising edge
Contact open
Contact closed *
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