User’s guide Ytterbium Pulsed Fiber Laser RFL-P70Q
～
P100Q Ver.: 2.0
6
/
9
laser output power from 0
～
100
％
(the actual laser power may not be strictly linear with the
setting value). The relationship between PIN value and output power is shown in Table 4:
Table 4 Definition of power control PIN value
Setting 1 Setting 2 Setting 3
Setting 4
Setting 5
PIN 1
0
0
0
0
1
PIN 2
0
0
0
0
1
PIN 3
0
0
0
0
1
PIN 4
0
0
0
0
1
PIN 5
0
0
0
1
1
PIN 6
0
0
1
1
1
PIN 7
0
1
1
1
1
PIN 8
1
1
1
1
1
Current
~50 %
~75 %
~87.5 % ~93.75 %
100%
2)
Alarms status: Pins 11, 12, 16 and 21 are the alarm and status outputs. Pin 12 is reserved
(always be high). These pins indicate the following device states.
Table 5 Definition of alarm signal
PIN 12
PIN 11
PIN 16
PIN 21
Alarm item
×
Low
Low
Low
Temperature alarm
×
Low
Low
High
Normal
×
Low
High
Low
Obligate alarm
×
Low
High
High
System alarm
×
High
Low
Low
Supply voltage alarm
×
High
Low
High
Obligate alarm
×
High
High
Low
Obligate alarm
×
High
High
High
Obligate alarm
3)
PIN 17 is the external 5V input, providing power supply for alarm signal; input current must
be > 20 mA.
4)
External input signals (PIN 1-8, 18-20, 22) are all connected to the optical coupler inside the
system. External 17 pin 5V power supply should be connected to ensure the effective signal.
Caution: Before turning on PIN 19, PIN 18 must be switched on, or the laser may be
damaged. The signal of PIN 18 must be ahead of PIN 19 at least 5 ms.
