Inxpect SRE 200 Series - Page 22

22
Inxpect SRE 200 Series| Instruction manual v1.5 DEC 2023 |Inxpect SAF-IM-200S_5m_7_00047_en_v1.5|© 2021-2023 Inxpect SpA
3. Get to know Inxpect SRE 200 Series
l
System recondition: configures the system without changing any settings.
l
Restart signal + System recondition: according to the input signal duration, performs the Restart signal
function or the System recondition function.
For details about digital input signals, see "Digital input signals" on page122.
3.3.3 Single or dual channel option
By default, each digital input function needs a signal on both channels to provide the redundancy required by
Category 3.
The following digital input functions can also be used as a single channel (Category 2):
l
Restart signal
l
Fieldbus controlled
l
System recondition
l
Restart signal + System recondition
In the Inxpect Safety application inSettings > Digital Input-Output, set the digital input function to Single
channel (Category 2) and then choose the input function for each channel.
3.3.4 Redundancy mode
Two types of redundancy mode are available for the dual channels input functions:
l
Coherent redundancy
Input Channel 1 Input Channel 2 Input logic value
0 0 Low
1 1 High
0 1 Error
1 0 Error
l
Inverted redundancy
Input Channel 1 Input Channel 2 Input logic value
0 1 Low
1 0 High
0 0 Error
1 1 Error
By default, the redundancy mode is coherent. For the following input functions, the inverted redundancy mode
can be set to guarantee compatibility with different connected devices:
l
Muting group “N” (only if pulse width = 0)
l
Restart signal
l
Fieldbus controlled
l
Dynamic configuration switch
l
System recondition
l
Restart signal + System recondition
3.3.5 SNS input
The control unit is provided with an SNS input (high logic level (1) = 24 V) needed to check the correct functioning
of the inputs.
NOTICE: if at least one input is connected, the SNS input "V+ (SNS)" and the GND input "V- (SNS)" must also be
connected.