20
LTDVE4CH-20 | INSTRUCTIONS MANUAL
Figure 7: turn-on and turn-off times within limits
The diagram in
Figure 8: protection prevents too long turn-on time
turn-on time is too long. As visible in the diagram, the light is switched off at
TonMAX
, earlier than
the original requirement.
Figure 8: protection prevents too long turn-on time
The diagram in
Figure 9: protection prevents too short turn-off time
off time is too short. As visible in the diagram, the light is switched on at
ToffMIN
, later than the
original requirement.
Figure 9: protection prevents too short turn-off time
The four protection blocks are completely independent regarding to
TonMAX
(maximum turn-on
time) and
ToffMIN
(minimum turn-off time). All of these time intervals can be programmed and may
range from 1 ms to 255 ms in steps of 1 ms.
The turn-on protection can be inhibited on selected outputs if a continuous operation is required by
input
TonMAX
ToffMIN
output
TonMAX
input
TonMAX
output
TonMAX
ToffMIN
input
TonMAX
ToffMIN
TonMAX
TonMAX
TonMAX
output
