11-2
Section
Introduction
283
11-2 Introduction
The errors detected by the Position Control Unit (PCU) can be divided broadly
into the following categories.
The following checks are performed when the PCU is turned ON or restarted.
•
Hardware check
•
CPU Unit communications check
•
Common parameters check
•
Flash memory check
•
Axis parameters check
The error status is retained when an error occurs. Refer to the tables for the
error-clearing procedure and clear the error.
When two or more errors have occurred, the next error will be detected when the
first error is cleared. Repeat the error-clearing procedure until all of the errors
have been cleared. When an error hasn’t been cleared, all commands will be
invalid except for the all-axis data transfer (write and read) and data save opera-
tions.
An error check is performed when a command is executed or a data irregularity
is detected during operation. An error check is also performed when a software
limit, emergency stop, or limit signal is detected.
Refer to the tables in
11-5 Error Code Lists
for details on the Unit operation when
an error has occurred. If an emergency stop or limit signal error is detected when
an error has occurred, an emergency stop or limit signal error will be output.
Refer to the tables for the error-clearing procedure and clear the error.
Note
A command such as START can be performed after removing the cause of the
command execution error. Errors occurring during data transfers from CX-Posi-
tion or using the IOWR instruction can be cleared (to 0) only when there were no
errors in the write data and write was completed normally. When error code 8700
is output, errors can be cleared (to 0) if IORD was completed normally.
Startup Errors
Instruction Execution
Errors
Summary of Contents for CS1W-NC113 - REV 02-2008
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