Omron CJ1W-NC271 - 12-2009 Operation Manual page 510

Overview of PCU Errors
Note
Note
482
If two or more errors of the same priority level occur at the same time, the
error status of the error that was detected first will be maintained (the error
code for the error that was detected first will be held).
Category PCU operation if error
Unit common System stopped
errors Connection released sud-
denly
Connection released after
deceleration stop
Individual axis MECHATROLINK communi-
error cations error (See note.)
Servo OFF
Emergency stop
Deceleration stop
Operation continues
MECHATROLINK communications errors that occur in individual axes are
processed in order of highest priority among the errors that occur in each
axis. (For details, refer to Errors in MECHATROLINK Communications in this
section.)
The PCU functions are limited when an error occurs, as follows:
Error
Unit common errors • UNIT ERROR RESET
(Unit Error Flag ON
• WRITE DATA
in the Common
• READ DATA
Operating Memory
• SAVE DATA
Area)
• Releasing connection (CON-
NECT Bit OFF)
Axis error • ERROR RESET
(Error Flag ON in the
• SERVO UNLOCK
Axis Operating Input
• WRITE SERVO PARAME-
Memory Area)
TER (See note.)
• READ SERVO PARAME-
TER (See note.)
• SAVE SERVO PARAME-
TER (See note.)
• Switching between Monitor
type 1 and 2.
For details on MECHA-
TROLINK communications
errors, refer to Errors in
MECHATROLINK Communi-
cations in this section.
For PCUs with unit version 1.2 or earlier, parameters cannot be read, written,
or saved when there is an axis error. Attempts to execute these commands
Priority
occurs level
High
Low
Functions that can be
performed
Section 12-1
Details
If a Unit common error
occurs while an individ-
ual axis error has
occurred, the status of
the Error Flag and axis
error code for the axis
error will be held.
Functions that cannot be
performed
• Establishing connection
(CONNECT Bit ON)
• ABSOLUTE/RELATIVE
MOVEMENT (with INTER-
RUPT FEEDING)
• ORIGIN SEARCH
• ORIGIN RETURN
• PRESENT POSITION PRE-
SET
• JOG
• DEVIATION COUNTER
RESET
• Changing override
• DECELERATION STOP
• SERVO LOCK
• SPEED CONTROL
• TORQUE CONTROL
• DEVICE SETUP
• WRITE SERVO PARAME-
TER (See note.)
• READ SERVO PARAME-
TER (See note.)
• SAVE SERVO PARAMETER
• EMERGENCY STOP (See
note.)