YASKAWA SGD7S series User Manual

12.3 Warning Displays
12.3.1 List of Warnings
12-48
12.3 Warning Displays
If a warning occurs in the SERVOPACK, a warning number will be displayed on the panel dis-
play. Warnings are displayed to warn you before an alarm occurs.
This section provides a list of warnings and the causes of and corrections for warnings.
12.3.1 List of Warnings
The list of warnings gives the warning name, warning meaning, and warning code output in
order of the warning numbers.
Warning
Number
Warning Name Meaning
Warning Code
Output
ALO1 ALO2 ALO3
A.900
Position Deviation
Overflow
The position deviation exceeded the parameter
settings (Pn520 × Pn51E/100).
HHH
A.901
Position Deviation
Overflow Alarm at
Servo ON
The position deviation exceeded the parameter
settings (Pn526 × Pn528/100) when the servo was
turned ON.
HHH
A.910 Overload
This warning occurs before an overload alarm
(A.710 or A.720) occurs. If the warning is ignored
and operation is continued, an alarm may occur.
LHH
A.911 Vibration
Abnormal vibration was detected during motor
operation. The detection level is the same as
A.520. Set whether to output an alarm or a warn-
ing by setting Pn310 (Vibration Detection Selec-
tion).
LHH
A.912
Internal Temperature
Warning 1 (Control
Board Temperature
Error)
The surrounding temperature of the control PCB is
abnormal.
HLH
A.913
Internal Temperature
Warning 2 (Power
Board Temperature
Error)
The surrounding temperature of the power PCB is
abnormal.
HLH
A.920 Regenerative Overload
This warning occurs before an A.320 alarm
(Regenerative Overload) occurs. If the warning is
ignored and operation is continued, an alarm may
occur.
HLH
A.921
Dynamic Brake Over-
load
This warning occurs before an A.731 alarm
(Dynamic Brake Overload) occurs. If the warning is
ignored and operation is continued, an alarm may
occur.
HLH
A.923
SERVOPACK Built-in
Fan Stopped
The fan inside the SERVOPACK stopped. H L H
A.930
Absolute Encoder Bat-
tery Error
This warning occurs when the voltage of absolute
encoder’s battery is low.
LLH
A.93B Overheat Warning
The input voltage (temperature) for the overheat
protection input (TH) signal exceeded the setting
of Pn61C (Overheat Warning Level).
LLH
A.941
Change of Parameters
Requires Restart
Parameters have been changed that require the
power supply to be turned OFF and ON again.
HHL
A.942
Speed Ripple Com-
pensation Information
Disagreement
The speed ripple compensation information stored
in the encoder does not agree with the speed rip-
ple compensation information stored in the SER-
VOPACK.
HHL
A.971 Undervoltage
This warning occurs before an A.410 alarm
(Undervoltage) occurs. If the warning is ignored
and operation is continued, an alarm may occur.
LLL
Continued on next page.

YASKAWA SGD7S series Specifications

General

Series	SGD7S
Safety	STO (Safe Torque Off)
Humidity	90% RH or less (non-condensing)
Control Method	PWM Control
Communication	EtherCAT, MECHATROLINK-III, MECHATROLINK-II
Output Power	0.1 kW to 15 kW
Feedback System	Incremental encoder, Absolute encoder
Protection Features	Overcurrent, Overvoltage, Undervoltage, Overload, Overheating, Encoder Error
Ambient Temperature	0 to 55°C
Storage Temperature	-20 to 85°C
Vibration Resistance	5.9 m/s²
Installation	Panel mounted
Certifications	CE, UL, cUL