YASKAWA CIMR-ACA4011 Instruction Manual page 324

Display Meaning
PG Disconnect Detected
PGO
No PG pulse were input when the
PG Open
MxC was outputting a frequency.
Excessive Speed Deviation
DEV
The speed deviation has been greater
Speed
than the setting in F1-10 for longer
Deviation
than the setting in F1-11.
Control Fault
The torque limit was continuously
CF
reached for three seconds or longer
Ctl Fault
during a decelerate to stop with Open
Loop Vector Control.
PID Feedback Reference Lost
A PID feedback reference loss was
FBL
detected (b5-12 = 2) and the PID feed-
Feedback
back input was less than b5-13 (PID
Loss
feedback loss detection level) for
longer than the time set in b5-14 (PID
feedback loss detection time).
EF0
External Fault Input from
Opt Exter-
Communications Option Card
nal Flt
EF3
Ext Fault
External Fault (Input Terminal S3)
S3
EF4
Ext Fault
External Fault (Input Terminal S4)
S4
EF5
Ext Fault External Fault (Input Terminal S5)
S5
EF6
Ext Fault
External Fault (Input Terminal S6)
S6
EF7
Ext Fault
External Fault (Input Terminal S7)
S7
EF8
Ext Fault External Fault (Input Terminal S8)
S8
EF9
Ext Fault
External Fault (Input Terminal S9)
S9
Table 7.1 Fault Displays and Processing (Continued)
Probable Causes
The PG wiring is broken or discon-
nected.
The PG is wired incorrectly.
Power isn't being supplied to the PG.
The load is too heavy.
The acceleration time and deceleration
time are too short.
The load is locked.
The settings in F1-10 and F1-11 aren't
appropriate.
Motor parameter settings are not cor-
rect.
An "external fault" was input from a
multi-function input terminal.
Protective and Diagnostic Functions
Corrective Actions
Fix the broken/disconnected wir-
ing.
Fix the wiring.
Supply power to the PG properly.
Check for open circuit when using
-
brake (motor).
Reduce the load.
Lengthen the acceleration time
and deceleration time.
Check the mechanical system.
Check the settings in F1-10 and
F1-11.
Check for open circuit when using
-
brake (motor).
• Check the motor parameters.
• Perform Auto-Tuning.
-
Check the Communications
- Option Card and communications
signals.
• Reset external fault inputs to the
multi-function inputs.
• Remove the cause of the exter-
nal fault.
-
7
7-