Safety Input Response Time Setting Function - Mitsubishi Electric NZ2GFSS2 32D S1 User Manual

Safety input response time setting function

The safety input response time setting function is used to set the filter time to reduce incorrect inputs caused by noise in input
signals.
The longer the input response time is, the higher tolerance for chattering and noise the module has. But the response to input
signals becomes slower. The shorter the input response time is, the quicker the response to input signals is. But the tolerance
for chattering and noise is reduced. To set the input response time, consider fully the operating environment.
Ex.
When Input response time is set to "1ms"
Without any noise effects, the time set in input response time and the time taken from when an external input turns on or off
until when the corresponding X input signal in the safety remote I/O module turns on or off are equal.
ON
External input
OFF
ON
X input signal
inside the module
OFF
Relation of the parameters for the input response time and input dark test
Set the input response time to satisfy the following condition.
Input response time > Input dark test pulse output time
*1 Input dark test pulse output time = Pulse OFF time for the input dark test  ((Number of pulse outputs for the input dark test  2) - 1)
For details on the input dark test, refer to the following.
Page 101 Input dark test function
Setting method
Set the input response time in "Input response time" from the "Parameter Processing of Device Station" window of the
engineering tool.
For the procedure to display the "Parameter Processing of Device Station" window, refer to the following.
Page 72 Parameter Settings
Item
Input response time X
• When Wiring selection of input Xn (n: even number) is set to "1: Double wiring (NC/NC)", set the same input
response time as Xn for Xn+1, the partner of Xn.
• When the wiring of Xn (n: even number) is set to "1: Double wiring (NC/NC)", only the same setting value
(same input response time) as Xn can be set for Xn+1. If a different value is selected and the parameter is
set, "Parameter data error (input response time): error code 0512H" occurs.
8 FUNCTIONS
88
8.1 Safety Input Function
1ms 1ms
Setting range
For the NZ2GFSS2-32D-S1
0: 1ms
1: 5ms
2: 10ms
3: 20ms
4: 50ms
NZ2GFSS2-8D-S1 or NZ2GFSS2-16DTE-S1
0: 1.0ms
1: 1.5ms
2: 5ms
3: 10ms
4: 20ms
5: 50ms
6: 70ms
*1