Phoenix Contact PSRmodular - Figure 5-22: Manual (Left) and Monitored (Right) Reset

PSRmodular system
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PHOENIX CONTACT 109241_en_03
Reset Type There are two types of reset: “Manual” or “Monitored”. If the “Manual” option is selected, only
the signal transition from logic “1” to logic “0” is checked. In the case of the “Monitored” op-
tion, the double transition from logic “0” to logic “1” and back to logic “0” is checked.
Figure 5-22 Manual (left) and monitored (right) reset
Output Test Enables the selection of clock signals that are to be connected to the switches of the mov-
able guard. These additional diagnostics enable the detection of short circuits and cross-
circuits between the cables. To activate these diagnostics, the clock signals must be con-
figured in the “Property” window of the relevant function block.
StartUp Test If this option is selected, a function test of the movable guard is required before the enable.
This test requires the movable guard to be opened in order to activate the “O
UT” output. This
check is only required on machine startup.
Filter (ms) This option enables external input signals to be filtered. The filter can be configured with a
value between 3 and 250 ms and helps suppress contact chatter. The length of the filter time
affects the calculation of the response time of the safety function.
With simultaneity /
Simultaneity (ms)
This parameter is only available if the “Double NC” option is selected. In this case, the block
monitors the simultaneous switching of both input channels.
If a signal change does not occur on both input channels within the defined synchronization
time, an enable signal will not be generated at the output. The maximum time interval be-
tween the two input channels can be configured in the range from 10 ms to 7000 ms.
Enable Error Out When this parameter is selected, an output (“E
RROR”) is made available which signals that
an error has been detected by the function block.
Item Description A 24-character text description of the function or the name can be entered here. The text is
displayed above the function block.
NOTE:
Inputs at a function block must always be used in ascending order.
Example: Input 1 and Input 2 are used for the function block, so Input 3 must be used for
the reset input.
MANUAL
RESET
OUTPUT
t = 250 ms
t
MONITORED
RESET
OUTPUT
t2 = 250 ms
5 s > t1 > 250 ms
t1
t2