Renishaw XL-80 - Slow Trigger

53 XL80 laser system
Linear
XL-80 Hardware
XL-80 Applications
Angular
Straightness
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Slow trigger
The XL laser is triggered using a noisier trigger signal; for example, from a
relay or switch as shown opposite� This signal is applied to the slow trigger
pin of the auxiliary I/O port� The time delay between the leading edge of the
trigger pulse and the instant the laser reading is received is longer than the
fast trigger mode�
Slow trigger specications
Active edge Falling
Minimum pulse width 5 ms
Switch debounce < 20 ms
Trigger delay 8 ms
Maximum input voltage ±12 V
Open
Closed
Active pulse width > 5 ms
Active edge: position sampled here
Switch bounce < 20 ms will be ignored
Pin 17
Slow trigger input Pin 15
Tr igger input protected
to ± 12 V DC
TTL
10 K
0
V
+3.3 V
Figure 2 Electrical interface for slow triggering�
XL-80 Hardware