FS 16-LB, 16i-LA, 16i-LB, External Power Control Function Specifications Additional Manual Page 4
Additional Manual
2.2 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 alarms described later. Now the introduction of the external signal
in the form of pulse train coupled with BEAM ON Command from the CNC produces the
pulsed laser output power. In this mode the pulse output by means of programming is not
available because the CNC sends the pulse duty 0% command to the laser oscillator.
(2)
When the EPC signal is "0", the external power control mode becomes off and the CNC
will be operated in the normal mode in which pulse command by programming is also
possible.
In the use of this EPC function, never fail to provide the on/off control to the external
signal as well as to the external power control mode. The former can be performed by
means of the external power control mode signal (EPM).
The system parameter, named "DLS", is availed to disable Laser Setting as well as Gas
Flow setting screens. And the parameter also is availed to disable the pulse frequency (Fr)
and the pulse duty (Du) in the Laser Power screen.
Note that the screen disable function is not effective when G10 is commanded to set the
parameter "DLS" while target screen is displayed. As a rule, set the parameter "DLS" by
MDI operation to activate this function.
LASER POWER O0003 N0001
Pc
1 5 0 0
W
Pa
1 5 0 0
W
E
0. 0 0 0
MM
[POWER ][ SET ][ ][ ][ ]
(3)
(3)
Fig.4 Laser Setting Screen
(2) Limiting conditions
The external power control mode can be operated under the following conditions .
(a) Disabled function
Feedback control of laser output power (automatically disabled)
(b) Disabled alarms
* Anomalous power decrease alarm
* Anomalous beam reflection alarm
* Discharge voltage decrease alarm
(2)
(c) In the external power control mode, the CNC sends the pulse duty 0 % command to
the laser oscillator irrespective of the kind of output power and, therefore, the pulse
command cannot be used. The following functions, which are combined with the
pulse operation, are disabled.
4/5
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