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Safety function blocks
350
02/16 MN05013001Z EN
e
Parameter EM..FT: Monitoring time of the feedback loop,
within which the EM..FL must drop out or pick up:
– If the coil does not drop out within the specified time after
EM..QS picks up, the enable is removed and an error is indi-
cated.
– If the coil does not pick up within the specified time after
EM..QS drops out, an error is indicated and no enable is issued
until the error is acknowledged.
Can be used as an adjustable constant.
f
Contact EM..QS: Closes when conditions for safe operation are
fulfilled and enables the hazardous movement.
Use only in the safety circuit diagram.
g
Contact EM..ER: Closes in the event of an error.
Use in the safety and in standard circuit diagram.
h
Actual value output EM..QV: Indicates the current actual value
of the monitoring time.
Indicated on the device or in easySoft-Safety.
i
Diagnostics output EM..DG: Provides information about the
states of the function block.
Evaluation only in the standard circuit diagram with the DG
diagnostics function block.
Wiring of the function block
The feedback loop coil EM..FL is wired with one of the device
terminals IS1 to IS14. The activation coil is normally
connected to the output of a safety function block.
Figure 173:
Wiring of input coils
You can associate the function block contact EM..QS directly
with one or several of the safety device outputs.
Figure 174:
Wiring the enable contact to two device outputs
IS01---------------------------
Ä
EM01FL
ES01QS-------------------------
Ä
EM01OC
EM01QS--------------------------
uÄ
QS01
hÄ
QS02
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