Omron OMNUC G User Manual page 390

8-2 Alarm Table
Alarm
Display
8
Others
8-5
Alarm
Error Detection Function
Type
48 R Encoder phase Z error
49 R Encoder PS signal error
82 R Node address setting error
83 --- Communications error
84 --- Transmission cycle error
86 --- Watchdog data error
87 X Emergency stop input error
90 --- Transmission cycle setting error
91 --- SYNC command error
93 R Parameter setting error
R
95 Servomotor non-conformity
X
R Other errors
Detection Details and Cause of Error
A phase-Z pulse was not detected
regularly.
A logic error was detected in the PS signal.
The rotary switch for setting the node address
of the Servo Drive was set out of range.
Data received during each MECHATROLINK-
II communications cycle repeatedly failed,
exceeding the number of times set in the
Communications Control (Pn005).
While actuating MECHATROLINK-II
communications, synchronization frames
(SYNC) were not received according to the
transmission cycle.
Synchronization data exchanged
between the master and slave nodes
during each MECHATROLINK-II
communications cycle resulted in an
error.
The emergency stop input became OPEN.
The transmission cycle setting error when
the MECHATROLINK-II
CONNECT command is received.
A SYNC-related command was issued while
MECHATROLINK-II was in asynchronous
communications mode.
Parameter setting exceeded the allowable
range.
The combination of the Servomotor and
Servo Drive is not appropriate.
The control circuit malfunctioned due to
excessive noise.
An error occurred within the Servo Drive due
to the activation of its self-diagnosis function.