Datasensing SH4 STANDARD MUTING - L Muting (2 Signals;2 Sensors)

MUTING
PRODUCT REFERENCE GUIDE 49
L muting (2 signals/2 sensors)
The activation of the Muting function occurs as a result of a rising edge on MUTING1
and MUTING2 inputs. As reported in figure below T
12
activation delay between MUT-
ING1 and MUTING2 must be greater than response time and less than 4s.
T
12
is measured and then multiplied by 2 to calculate the muting timer. Muting opera-
tions is ceased when 2xT
12
timer expires, starting from falling edge on MUTING1 input.
If MUTING2 input goes low before MUTING1 muting is ceased immediately. Muting is
optionally ceased also when light curtain is free before the timer expires (Muting stop
condition parameter).
Figure 37: L muting timings
Figure 38: Connection of sensors on MUTING1 and MUTING2 inputs in case of
monodirectional (L), two-sensors muting
NOTE: See “Response Times” on page 78.
FREE
INTERCEPTED
24Vdc
0Vdc
24Vdc
0Vdc
ON
OFF
LIGHT CURTAIN
MUTING1
MUTING2
MUTING STATE
0s < T
12
< 4s
2xT
12
ESPE
S2
S1
L
V
d1
D
24Vdc
ESPE
MUTING1
MUTING2
24Vdc
S2
S1