
B–70115EN/03
6. TROUBLESHOOTING
176
By using the IF PCB pins, check that each signal of the IF PCB is normal.
Fig. 6.5.3 (a) and Fig. 6.5.3 (b) show the pin locations.
FS0–L
FS16–L
FS16i–L
Signal function
COR COR Voltage to operate the laser power supply 0 V to 5V
GPC GPC Specification of pressure inside the laser tube 0 V to
13 V
MOUT — Sampling output of monitored laser power supply cur-
rents and voltages and monitored pressures inside the
laser tube.
Data is output in the order: pressure, voltage (No. 1);
pressure, current (No. 1); pressure, voltage (No. 2);
and so on.
— MOUT Sampling output of monitored laser power supply cur-
rents and voltages.
Data is output in the order: voltage (No. 1), current
(No. 1), voltage (No. 2), current (No. 2), and so on.
LPW LPW Monitoring of laser output power 0 V to 10 V
LTP LTP Monitoring of pressure inside the laser tube 0 V to 9 V
1V/Pressure value 100 (=1330 Pa)
Monitored values are clamped to 9 V.
— PTM
PAN1
Sampling output of monitored laser output power val-
ues and pressure values inside the laser tube.
These two types of data are output alternately.
Pin Setting Description
SP1
1–2 Disables the safety interlock function.
2–3 Enables the safety interlock function. (The power to the
IF PCB can be turned on only when pin 1 of CN34 is
connected with pin 2 of CN34.)
SP2
SP3
1–2 Enables door interlock operation with the oscillator
only. (Note, however, that when the door is opened, an
NMI communication error occurs because communica-
tion with the CNC is disabled.)
2–3 Enables door interlock operation interactively with the
CNC. (When DIL1 and DIL2 are connected with the
door interlock terminal of the CNC, door interlock op-
eration is performed interactively with the CNC. When
no connection is made, this mode of door interlock op-
eration is disabled.)
SP4 2–3 Be sure to use this setting at all times.
SP5
SP6
1–2 Enables communication with the CNC via a metal
cable (when JD1B is used).
2–3 Enables communication with the CNC via an optical
cable (when COP1B or COP are used).
6.5.4
Checking the IF PCB
Signals
6.5.5
Checking the Jumper
Pins (FS16–L, 16i–L)