Operation At Input Disconnection - Mitsubishi Electric MELSEC-Q Series User Manual

3 SPECIFICATIONS

3.1.2 Operation at input disconnection

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Table 3.5 lists the operations of each input at input disconnection.
Table 3.5 Operations at input disconnection
Input
Thermocouple
Micro voltage
Voltage
0 to 1V, -1 to 1V, 0 to 5V, -5 to 5V,
Current
1: "Input range upper limit + (Full-scale
*
2: "Input range lower limit - (Full-scale
*
3: In this case, no alert occurs at the channel where a sensor is not connected because the
*
measured value is within the input range.
REMARKS
To judge an error, select the range actually used by the sensor so that values near
0V/0mA are not displayed unless the sensor is connected.
(Example)
To use the 0 to 5V voltage input range, set the input range actually used by the
sensor to 1 to 4V.
Input range
All
1 to 5V
0 to 10V, -10 to 10V
4 to 20mA
0 to 20mA
5%)" is displayed.
5%)" is displayed.
MELSEC-Q
Operation
Up scale *1
*2
Down scale
A value near 0V is displayed.
Down scale
A value near 0mA is displayed.
3 - 5
*3
*3