
7. TROUBLESHOOTING
B–63785EN/01
384
(a) Parameters related to the reader/punch interface are not set correctly.
Check the following items on the communication setting screen:
Setting item
name
Parameter Indication for setting item
(parameter setting)
TV Check TVC (No.0000#0) ON (1)/OFF (0)
TV (Comment) CTV (No.0000#1) ON (0)/OFF (1)
In/Out Code ISP (No.0000#2)
EIA (No.0000#4)
EIA (#2=0/1, #4=1)
ISO (#2=0, #4=0)
ASCII (#2=1, #4=0)
EOB Code NCR (No.0000#3) LF CR CR (0)/LF (1)
F.G. Input
F.G. Output
B.G. Input
B.G. Output
(No.0020)
(No.0021)
(No.0022)
(No.0023)
RS232–C C1 (1)
RS232–C C2 (2)
RS232–C C3 (3)
Memory Card (8)
Remote Buffer (10)
RS422 C1 (13)
OPEN CNC 1 (15)(DNC operation interface)
OPEN CNC 2 (16)(Upload/download interface)
RS232–C C4 (20)
RS422 C2 (21)
Setting item name Parameter Setting
Device Type (No.5110, 5120, 5130)
(No.5140, 5150, 5160)
(No.5170, 5180, 5190)
1 to 8
Stop Bit (No.5111, 5121, 5131)
(No.5141, 5151, 5161)
(No.5171, 5181, 5191)
1/2
Baud Rate (No.5112, 5122, 5132)
(No.5142, 5152, 5162)
(No.5172, 5182, 5192)
1 to 12
(50, 100, 110, 150, 200, 300, 600,
1200, 2400, 4800, 9600, 19200bps)
(b)The external input/output unit or host computer is defective.
(i) Check that the settings related to communication with the external
input/output unit or host computer are the same as those made for
the NC (such as the baud rate and stop bit). If they do not match,
correct the settings.
(ii) If there is a spare input/output unit, use it to check whether
communication can be performed.
(c) The motherboard or serial communication board is defective.
(i) RS–232C channel 1 or 2 (JD5A or JD5B on the main CPU board)
The main CPU board may be defective. Replace it.
(ii) RS–232C channel 3 or RS–422 channel 1 (JD36A on the LCD unit)
The serial LCD unit may be defective. Replace it.
(iii) RS–232C channel 4 or RS–422 channel 2 (JD5C or JD6B on the
additional axis board)
The additional axis board may be defective. Replace it.
Action