Level Trigger; Edge Trigger - Datasensing SH4 STANDARD MUTING Product Reference Manual

Then, an override request is accepted only if signals at OVERRIDE inputs follow the tim-
ings shown below.
Two types of override trigger sequence are accepted on external inputs:
• "Level Trigger" on page 55
• "Edge Trigger" on page 55

Level Trigger

Level Trigger: override engaged until both contacts are closed AND at least one muting
sensor is intercepted (high input).
OVERRIDE 1
OVERRIDE 2
MUTING1 or
MUTING2
OVERRIDE STATE
Figure 44: Level Triggered Override Timings

Edge Trigger

Edge Trigger: override engaged on contacts closing until at least one muting sensor is
intercepted.
OVERRIDE 1
OVERRIDE 2
MUTING1 or
MUTING2
OVERRIDE STATE
Figure 45: Edge Triggered Override Timings
t < T
out
t < 400ms t < 400ms
t < T
out
t < 400ms
OVERRIDE
24Vdc
Open
Open
0Vdc
TRUE
FALSE
ON
OFF
24Vdc
0Vdc
24Vdc
0Vdc
TRUE
FALSE
ON
OFF
PRODUCT REFERENCE GUIDE
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