Wuhan Raycus Fiber Laser Technologies Co., Ltd.
User Guide of RFL-P500H
16
Figure 8 DB25 control interface
The DB25 behind the power module is the interface between the control
system (such as marking machine) and the laser system. Be sure to connect reliably
before working. The pins are defined as follows
Table 5 DB25 Control Interface Definition
PIN
Function
Description
1-8
（
D0-D7
）
Power Settings
Data parallel transmission 8bit
，
D0 is the
lowest level
，
D7 is the highest level
；
Range
：
0-255
（
Hexadecimal system
：
0X00-0XFF
）；
0
：
Minimum power output
；
255
：
Maximum output power
10,13-15,24,25
GND
Digital Grounding Aignal
（
Digital
）
11,12,16,21
Laser alarms
status
See alarm codes in the table 7
17
VCC
+5VDC power supply input.
Providing power for inside isolate chip of
DB25 to ensure that the input and output
signal are valid.
18
Pre-output
optical signal
MO
、
PA Pre-output optical signal
，
High level turn on, low level turn off
19
Output optical
signal
High level turn on, low level turn off
20
Sync
Pulse Repetition Rate (Synchronization) input,
square wave.10KHz-50KHz
22
Guide Laser
signal
High level turn on, low level turn off
23
/
/Reserved PIN.
Unconnected in suspension
a)
The pump current of diode laser and the laser output power are controlled
by setting the value of PIN1-PIN8 (TTL level). PIN1-PIN8 can be set from
0
～
255
，
corresponding to the laser output power from 0
～
100
％
(the
