Analog servo alarms – Yaskawa MP920 Motion Module User Manual
Page 365
8.2 Alarms and Actions Taken
8-9
8
Analog Servo Alarms
IB010 (SVALM) will turn ON if an alarm occurs with a SERVOPACK connected to an
SVA-01A or SVA-02A Module. Connect a Digital Operator to the SERVOPACK to check
alarm details.
Table 8.1 List of Analog Servo Alarms
Indicator
Alarm Name
Alarm
SGDA
SGDB
SGDM
A.00
Absolute Data Error
Absolute data cannot be received or an improper
absolute value was received.
Yes
Yes
No
A.02
Parameter Destruction
Incorrect sum check result for a parameter.
Yes
Yes
Yes
A.03
Main Circuit Detection
Error
Improper power circuit detection data.
No
No
Yes
A.04
Parameter Setting Error
Parameter setting exceeds the setting range.
Yes
Yes
Yes
A.05
Combination Error
Servomotor and SERVOPACK capacity combina-
tion is incorrect.
No
No
Yes
A.10
Overcurrent or Heat Sink
Overheat
Overcurrent flowed through the power transistor.
The heat sink overheated. (SGDM)
Yes
Yes
Yes
A.30
Regeneration Error
Regenerative processing circuit failed.
Yes
Yes
Yes
A.31
Position Error Pulse
Overflow
Position error pulse exceeded the parameter (over-
flow) value.
Yes
Yes
No
A.32
Regeneration Overload
Regenerative energy exceeds the capacity of the
regenerative resistor.
No
No
Yes
A.40
Overvoltage
Main circuit voltage is unusually high.
Yes
Yes
Yes
A.41
Undervoltage
Main circuit voltage is falling.
No
No
Yes
A.51
Overspeed
Servomotor rotation speed is unusually high.
Yes
Yes
Yes
A.70
Overload
Torque exceeds the rated level. (High and low load)
Yes
No
No
A.71
Overload (High Load)
Operation for several seconds to several tens of
seconds at torque significantly above the rated level.
No
Yes
Yes
A.72
Overload (Low Load)
Continuous operation at torque above the rated level.
No
Yes
Yes
A.73
Dynamic Brake Overload
Rotating energy with dynamic brake operation
exceeds dynamic brake resistor capacity.
No
No
Yes
A.74
Inrush Resistance
Overload
The main circuit power supply frequently turned ON
and OFF.
No
No
Yes
A.7A
Heat Sink Overheat
SERVOPACK heat sink overheated.
No
No
Yes
A.80
Absolute Encoder Error
Improper number of pulses per absolute encoder
rotation.
Yes
Yes
Yes
A.81
Absolute Encoder Backup
Error
All encoder power supplies OFF and position data
cleared.
Yes
Yes
Yes
A.82
Absolute Encoder
Checksum Error
Incorrect sum check results for encoder memory.
Yes
Yes
Yes
A.83
Absolute Encoder Battery
Error
Voltage dropped in the backup battery for the
absolute encoder.
Yes
Yes
Yes
A.84
Absolute Encoder Data
Error
Improper absolute data received.
Yes
Yes
Yes
A.85
Absolute Encoder
Overspeed
Encoder operated at high speed when power was
turned ON.
Yes
Yes
Yes
A.86
Encoder Overheat
Encoder internal temperature too high.
No
No
Yes