6-4-4
Interface Specifications
Specifications differ according to the signal type.
[Input]
Signals / DIO0, DIO1, DIO2
Connect to COMIN terminal when using these signals.
Item Specification
Input voltage 24 VDC±10%
ON current
*1
5 mA min.
ON voltage
*1
8.8 V min.
OFF current
*2
0.5 mA max.
OFF voltage
*2
1.1 V max.
ON delay 5 ms max.
OFF delay 0.7 ms max.
*1. ON current / ON voltage
It is the current or voltage that will change the state from OFF to ON. The ON voltage is the potential differ-
ence between COM IN and each input terminal.
*2. OFF current / OFF voltage
It is the current or voltage that will change the state from ON to OFF. The ON voltage is the potential differ-
ence between COM IN and each input terminal.
Precautions for Correct Use
Chattering measures
Although the Smart Camera has equipped chattering measures function, erroneous inputs by
chattering cannot be prevented when chattering occurred for 100 μs or more. (Input signal
changes less than 100 μs are ignored. Input signals are determined when the same or higher
level is held 100 μs or longer.) We recommend using components with no contact such as SSR
or PLC transistor output. When using components with contact like a relay, rebounds of a con-
tact may generate input signals again.
6 Power Supply and I/O Interface
6 - 9
FHV Series Smart Camera Setup Manual (Z408-E1)
6-4 I/O Cable Interface (Power Supply, I/O, RS-232C)
6
6-4-4 Interface Specifications
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