LOCK FEEDBACK
Using the LOCK FEEDBACK function block the
state of the guard locking inputs for a moving
safety guard or a safety door is checked. If the
inputs signal that the guard locking is locked,
the OUTPUT output is "1" (TRUE), otherwise the
OUTPUT output is "0" (FALSE).
Parameters
Input Type:
- Single NC – makes it possible to connect
components with one normally closed contact
- Double NC – makes it possible to connect
components with two normally closed con-
tacts.
- Double NC/NO – makes it possible to connect
components with one normally open contact and one normally closed contact.
Connect inactive input (guard locking unlocked, OUTPUT output is "0" (FALSE)) as fol-
lows:
- NO contact to terminal that has been assigned to the input IN1.
- NC contact to terminal that has been assigned to the input IN2.
Output Test: Using this option you can select which test output signals are to be sent to
the component contacts. Short circuits between the wires can be detected and rectified by
means of this additional check. For this purpose it is necessary to configure the test out-
put signals (from the test output signals available).
Filter (ms): This parameter makes it possible to filter the signals that are received from
the external contactors. The filter can be set to between 3 and 250 ms and removes any
contact bounce. The time set for the filter affects the calculation of the total response
time of the module.
With Simultaneity: If selected, the simultaneous switching of the signals received from
the external contacts is checked.
Simultaneity (ms): This control is only available if the previous parameter has been se-
lected. Using this value you can define the maximum time (in ms) between the switching
of the two different signals that are received from the external contacts.
Enable Error Out: If selected, an error detected by the function block is signaled.
Item Description: Here you can enter a functional description for the component. The text
is displayed in the upper part of the symbol.
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