Omron SYSDRIVE RV Series User Manual page 427

Display Meaning
External Fault (Input Terminal S3)
Ext Fault
S3
External Fault (Input Terminal S4)
Ext Fault
S4
External Fault (Input Terminal S5)
Ext Fault
S5
External Fault (Input Terminal S6)
Ext Fault
S6
External Fault (Input Terminal S7)
Ext Fault
S7
External Fault (Input Terminal S8)
Ext Fault
S8
Zero-Servo Fault
The rotation position moved during
Zero Servo
zero-servo operation.
Fault
Exceeded Allowable Number of
Speed Search Retrials
The speed search has been retried
Search
more than the number of times set in
Retry Err
b3-19 (Number of speed search retri-
als).
Digital Operator Connection Fault
The connection to the Digital Operator
Oper Dis-
was broken during operation for a Run
connect
Command from the Digital Operator.
RS-422A/485 Communications
Error
RS-422A/
A normal reception was not possible
485 Com
for 2 s or longer after control data was
Err
received once.
Option Communications Error
A communications error was detected
during a Run Command or while set-
Option
ting a frequency reference from a
Com Err
Communications Option Board.
SI-T Watchdog Error
Consistency error of received control
SI-WDT
data
Err
Table 7.1 Fault Displays and Processing (Continued)
Probable Causes
An "external fault" was input from a
multi-function input terminal (S3 to
S8).
The torque limit is too small.
The load torque is too large.
The settings in b3-17 and b3-18 aren't
appropriate.
Synchronization error between master
controller and Inverter for control
data.
Protective and Diagnostic Functions
Corrective Actions
• Reset external fault inputs to the
multi-function inputs.
• Remove the cause of the exter-
nal fault.
Increase the limit.
Reduce the load torque.
- Check for signal noise.
Make sure that the settings in b3-
17 and b3-18 are appropriate.
Check the connection to the Digi-
-
tal Operator.
Check the communications
- devices and communications sig-
nals.
Check the communications
- devices and communications sig-
nals.
Check the communications tim-
ing such as communications cycle.
Refer to MECHATROLINK COM-
MUNICATIONS INTERFACE
CARD INSTRUCTIONS
(TOBPC73060008) for details.
7
7-