FS 16-LB, 16i-LA, 16i-LB, External Power Control Function Specifications Additional Manual Page 2
Additional Manual
1. General
The switching of the laser power, which is turned on by CNC, is possible by feeding the
external on/off signal to the interface PCB of the laser oscillator.
Using this function, the external control of the laser power can be performed introduc
ing the pulse train signal, which is controlled pulse on/off time wise.
2. Specification
2.1 Laser oscillator interface
In the external power control mode (to be described later), the CNC sends pulse duty 0 %
command to the laser oscillator irrespective of the kind of power command (CW or pulse).
(2)
In this case, the CNC makes the ON/OFF-TIME Command “0”.
When the ON/OFF-TIME Command is “0”, the laser oscillator is able to control GATE
with the external signal.
When the external signal turns on, GATE output becomes “0”, SELECTOR is selected for
INPUT A and POWER Command is output.
When this signal turns off, GATE output becomes “1”, SELECTOR is selected for INPUT B
and BASE DISCHARGE Command is output.
The introduction of pulse train as the external signal, in this way, results in the formation of
SELECTOR output of the pulse train consisting alternatively of POWER Command and
BASE DISCHARGE Command, which is sent to the power supply unit and pulse-modulates
the laser power.
(2)
(2)
(2)
LASER Oscillator
0=SELECT A
1=SELECT B
A
B
POWER Command
BASE DISCHARGE
Command
ON/OFF-TIME
Command
GATE
R
ece
iv
er
Power Supply
Unit
A
SELECTOR
B
External signal
(pulse train)
Fig. 1 Pulse Command in Laser Oscillator
2/5
Contents Summary of FS 16-LB, 16i-LA, 16i-LB, External Power Control Function Specifications Additional Manual
- Page 1FANUC Series 16-LB, 16i-LA, 16i-LB (4) External Power Control Function Specifications 04 Dec 05, 2002 Add. Model on Page 1 Add. New circuit and S/N on Page 3 03 Apr 25, 1995 Revision of Figure on Page 4 Add. Parameter on Page 5 02 Apr 7, 1995 Revision of description on Page 2-5 01 Mar 9, 1995 Newly
- Page 21. General The switching of the laser power, which is turned on by CNC, is possible by feeding the external on/off signal to the interface PCB of the laser oscillator. Using this function, the external control of the laser power can be performed introduc ing the pulse train signal, which is controll
- Page 3(4) The receiver circuit of the external signal and recommended parameters are shown below. And laser oscillator S/N that this circuit is installed is shown on the right side. Specifications of this IF PCB are A16B-2100-0140 and -0141. CN5#07 EXTP - + CN5#08 EXTN Fig.2 Receiver for External Pulse tr
- Page 42.2 Function (1) Outline When the external power control trigger signal (EPC) is "1", the CNC, provided that it can undergo the external power control, accepts this signal and is set EXTERNAL POWER CONTROL MODE. In this mode, the feedback power control is disabled and so is the monitoring of the ala
- Page 5* Pulse duty/frequency override (automatically disabled) * Edge cutting/start up function (pulsing disabled) * Conventional power control function (pulsing disabled) (3) Signals External power control trigger signal EPC