Alarms And Errors; Outputs To The Ir Area; Alarm/Error Indicators; Troubleshooting From The Pc - Omron SYSMAC C200H-NC111 Operation Manual

Troubleshooting from the PC

6–1

Alarms and Errors

Alarms
Errors
6–2

Outputs to the IR Area

Alarm Flag
Error flag
Alarm/Error Codes
6–3

Alarm/Error Indicators

Front Panel LED
6–4

Troubleshooting from the PC

112
Whenever the Position Control Unit is powered up, or data is transferred into
the Unit, checks are performed to ensure that the data is in proper form and
can be used for operation. If an error exists in speed or positioning action
data at this time, an alarm code is generated. Errors that result in alarms in-
clude BCD errors, out-of-range data, and no-data errors (when required data
is set at 0). An alarm will thus be generated, for example, if the required set-
tings are not made in the DM area of the PC. Operation can be continued
even after an alarm has been generated, however, as long as the data that
generated the alarm is not used.
If operation is attempted with data for which an alarm has been generated,
an error code will be generated and further operation will not be possible.
Error codes can also be generated during pulse output, e.g., when an emer-
gency stop results from CW limit input.
Refer to Appendix A and Appendix B for specific alarm and error codes.
word n+5, bit 03
1: Alarm exists.
word n+5, bit 5
1: Error exists.
word n+6
This word contains only the most recent alarm or error code. Several error
and/or alarm codes can be read out in sequence by setting the READ ER-
ROR command bit (bit 05 of word n). See 4–5 READ ERROR for details.
The existence of an alarm or error code is indicated both by the alarm/error
LED on the front panel (see figure below) and by the flags (see above) in the
IR area of the PC.
NC111
RUN BUSY
CW
ALARM
CCW
ERROR
Abnormalities in the Position Control Unit can be monitored from the C200H
PC. It is monitored as a Special I/O Unit, and as such is treated the same as
a High-Speed Counter.
ALARM indicator flashes when an alarm code has
been output and ERROR indicator lights when an
error has occurred.
Section 6–4