Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-P500H
17
actual laser power may not be strictly linear with the setting value). The
relationship between PIN value and output power is shown in Table 6:
Table 6 Definition of power control PIN value
Setting1
Setting 2
Setting 3
Setting 4
PIN 1
0
0
0
0
PIN 2
0
0
0
0
PIN 3
0
0
0
0
PIN 4
0
0
0
0
PIN 5
0
0
0
1
PIN 6
0
0
1
1
PIN 7
0
1
1
1
PIN 8
1
1
1
1
Current
~50 %
~75 %
~87.5 %
~93.75 %
b)
Pin 10 and Pin 14are all digital GND.
c)
Pin 17 is an external 5V DC voltage to provide power supply for inside
isolate chip of DB25, thus the input and output signals are valid; the input
current is more than 20mA.
d)
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.
e)
Pin 20 provides control of the frequency. The frequency range should be
10kHz~100 kHz, depends on the varying power levels of different laser
machines.
ATTENTION: The frequency signal must be ahead of the EM signal at least
5 ms, otherwise the laser machine may be damaged.
f)
Below figure shows DB25 sequence diagram:
