Baumer OADM 20I6 Série Manuel D'utilisation page 51

Synchronizing several sensors
Several sensors may be synchronized using an external clock. The clock cycle must be low for T1. The total
time of a cycle must be at least T2. Within 20 cycles all sensors will be synchronized.
12-28V
sync. signal
0V
Sensor
OADM 20I6x41, OADM 20I6x60,
OADM 20I6x72
OADM 20I6x80, OADM 20I6x81
OADM 21I6x80, OADM 21I6x81
If sensors are being synchronized this way, they all start their cycles at the same time. This means they start
to sample light together. The length of the sampling interval T3 or shutter time depends on the surface. It
may range from T3. White or gray objects reflect well enough to enable a less than half the sampling of
interval T3 max. Only very dark objects actually need the maximum sampling interval.
Several sensors in non-synchronous use
To prevent a negative mutual influence, using several OADM 2xI6xxx/S14F, the sensor can be used with a
non-synchronous trigger pulse. 12-28 V must be applied to the sync input, so that the laser will be turned off.
The following timing has to be obtained (S1 = sensor 1, S2 = sensor 2).
12-28 V
synch. input S1
0 V
20 mA
analog output S1
4 mA
12-28 V
synch. input S2
0 V
20 mA
analog output S2
4 mA
BA_OADM20I6_21I6_most.doc
12.06.2017
T1
T2
T1
10...250 µs
10...250 µs
10...250 µs
t1
t2
51/87
T2 T3
> 1 ms 5 µs...450 µs
> 3 ms 15 µs...1800 µs
> 4 ms 18 µs...1900 µs
Baumer
Frauenfeld, Switzerland