Wuhan Raycus Fiber Laser Technologies CO., Ltd.
P20QB/P30QB
Pulsed Fiber Laser User’s Guide V2.1
7
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.
f)
I/O connection of digital signal: the supply current of inputsignals are less than 10mA,
and the supply current of outputsignals are less than 3 mA . The connection circuit of
input/output signals is shown in Figure 6.
Figure 5.Schematic of input and output signals.
g)
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.
4.
Operation Regulations
4.1
Pre-inspection
a)
Make sure the device appearance is in good condition and the output fiber is
neitherexcessively bended nor broken.
b)
Make sure signal line of laser and marking system are properly connected.
4.2
a)
Starting procedures
Please make sure the control system is on before you turn on the fiber laser. Only after
at least 1 minute since the power turned on, the subsequent operations can be preceded.
b)
Frequency set introductions
For this special laser device, the frequency setting range is from 20 kHz to 60 kHz
(P20QB), or from 30 kHz to 60 kHz (P30QB).
c)
Laser marking checking
For the device initial testing, firstturn the power down to zero without turning on the
marking system after the device is successfully started. Then draw a quadrate, marking
continuously whileslowly increasing the power from 0% to 100% at the same time.
Meanwhile, use a ceramic material to observe the laser and the laser should become
