YASKAWA Varispeed G7 Series User Manual

Protective and Diagnostic Functions
7- 9
EF0
Opt Exter-
nal Flt
External Fault Input from Com-
munications Option Board
–
Check the Communications
Option Board and communications
signals.
EF3
Ext Fault
S3
External Fault (Input Terminal 3)
An “external fault” was input from a
multi-function input terminal.
• Reset external fault inputs to the
multi-function inputs.
• Remove the cause of the exter-
nal fault.
EF4
Ext Fault
S4
External Fault (Input Terminal 4)
EF5
Ext Fault
S5
External Fault (Input Terminal 5)
EF6
Ext Fault
S6
External Fault (Input Terminal 6)
EF7
Ext Fault
S7
External Fault (Input Terminal 7)
EF8
Ext Fault
S8
External Fault (Input Terminal 8)
EF9
Ext Fault
S9
External Fault (Input Terminal 9)
EF10
Ext Fault
S10
External Fault (Input Terminal 10)
EF11
Ext Fault
S11
External Fault (Input Terminal 11)
EF12
Ext Fault
S12
External Fault (Input Terminal 12)
SVE
Zero Servo
Fault
Zero-servo Fault
The rotation position moved during
zero-servo operation.
The torque limit is too small. Increase the limit.
The load torque is too large. Reduce the load torque.
– Check for signal noise.
SER
Search
Retrials
Fault
Exceeded Allowable Number of
Speed Search Retrials
The speed search has been retried
more than the number of times set
in b3-19 (Number of speed search
retrials).
The settings in b3-17 and b3-18 aren’t
appropriate.
Make sure that the settings in b3-
17 and b3-18 are appropriate.
OPR
Oper Dis-
connect
Digital Operator Connection
Fault
The connection to the Digital Oper-
ator was broken during operation
for a Run Command from the Digi-
tal Operator.
–
Check the connection to the Digi-
tal Operator.
Table 7.1 Fault Displays and Processing (Continued)
Display Meaning Probable Causes Corrective Actions
TOE-S616-60.1.book 9 ページ ２０１７年８月４日 金曜日 午後３時４１分

YASKAWA Varispeed G7 Series Specifications

General

Brand	YASKAWA
Model	Varispeed G7 Series
Category	Inverter
Language	English