4.2.3 ALARMS 0016,0017,0018,9016, 9017 AND 9018
(RS-232C
ERROR)
Cause of Trouble
Alarm 0016
9016
(Communication
Error)
Alarm 0017
9017
Check Method
Solution
Communication error of RS-232C
● Check cable grounding.
(ex. too rich noise level)
After RS-232C interface stop code was output,
more than 10 characters were read.
I
( Overrun)
Alarm 0018
RS-232C interface line was erroneously selected.
● Check the specifications of
9018
I
I
RS232C eaui~ment
I
(Line Selection)
I
. .
● Check parameters.
-.
0017 and 9017 are online and offline codes,
respectively,
For example, online trans -
mission error is indicated by 0017 and offline
transmission error is indicated by 9017.
Soft key
Soft key
-1
+
Not output by
~]
No
r
Machine
POri
BPS
Stop bit
Bit length
Parity check
Control code
RTS control
DR
line control
I
1
a
Detailed investigation
is required. (Contact
YASKAWA
representative. )
Fig. 4.6
RS-232C
Interface Troubleshooting Flowchart
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