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User’s guide Ytterbium Pulsed Fiber Laser RFL-P20QB
～
P30QB Ver.: 2.0
7
×
High
Low
High
Laser system is not ready for
emission state
×
High
High
Low
Obligate alarm
×
High
High
High
Obligate alarm
(5)
PIN 18 is the start signal of the MO. PIN19 is the input for the optical output signal. The
electrical level for both PIN18 and PIN19 are 5V. Before turning on PIN 19, MO signal must
be switched ON, in other word, the signal of PIN 18 must be ahead of PIN 19 at least 5 ms,
and otherwise the laser machine may be damaged.
(6)
I/O connection of digital signal: the supply current of input signals are less than 10mA, and
the supply current of output signals are less than 3 mA . The connection circuit of
input/output signals is shown in Figure 6.
Figure 6. Schematic of input and output signals.
(7)
The control board and laser driver can be powered separately. When there is failure in 24V
control board power supply, the laser will stop emission after 20 ms. When there is failure in
24V laser driver power supply, the laser will stop emission after 4 ms.
