Input Delay Function And Parameter Setting - Mitsubishi Electric NZ2FTGN User Manual

Input delay function and parameter setting

The input module may take in noise as an input depending on the pulse width of the signal. To avoid taking in such noise, set
the Input delay time in the parameter setting of the NZ2FTS4-4DE.
Item
DI 0 (Channel 0) Input delay
DI 1 (Channel 1)
DI 2 (Channel 2)
DI 3 (Channel 3)
*1 (0) to (5) are the values set in the register when the digital I/O module is connected to the NZ2FT-MT or the NZ2FT-EIP.
*2 These cannot be set with the NZ2FT-PBV.
• When a short Input delay time is set
ON
Input signal
OFF
ON
DI 0
OFF
(1) Change of the input signal is quickly followed.
The input module may take in noise as an input depending on the pulse width of the signal. The pulse width
that can be taken in as an input varies depending on the setting of the parameter "Input delay". Consider the
following when setting the Input delay time.
• Pulse widths shorter than 10ms cannot be taken in as inputs.
• The boundary of the pulse width that can be taken in is about 110% of the Input delay time, so set a pulse
width sufficiently longer than that.
• Fully consider the operating environment when setting the Input delay time.
Description
Delays input by the specified length of time.
Input delay
ON
ON
(1)
• When a long Input delay time is set
ON
ON
Input signal
OFF
DI 0
OFF
(2)
(2) Change of the input signal that persists for a short time period (less than
Input delay time) is not loaded.
*1
Setting range
• No(0)
*2
• 0.3ms (1)
• 3ms (2)
• 10ms (3)
• 20ms (4)
*2
• 40ms (5)
(Default: 3ms)
Input delay
ON
14 DIGITAL INPUT MODULE
14.1 NZ2FTS4-4DE
14
419