Mitsubishi Electric MELSERVO-J3W Series Instruction Manual page 392

14. USING A DIRECT DRIVE MOTOR
Alarm No.: E3 Name: Absolute position counter warning
Warning description
Display Detail name
E3.1 Absolute Same as for the rotary servo motors.
position counter Refer to section 8.4.
travel distance
excess warning
E3.2 Encoder
absolute
position counter
error warning
Warning No.: E4 Name: Parameter warning
Warning description
Display Detail name
E4.1 Parameter Same as for the rotary servo motors.
setting range Refer to section 8.4.
error warning
Warning No.: E6 Name: Servo forced stop warning
Warning description
Display Detail name
E6.1 Forced stop Same as for the rotary servo motors.
warning Refer to section 8.4.
Warning No.: E7 Name: Controller forced stop warning
Warning description
Display Detail name
E7.1 Controller Same as for the rotary servo motors.
forced stop Refer to section 8.4.
warning
Warning No.: E8 Name: Cooling fan speed reduction warning
Warning description
Display Detail name
E8.1 Decreased Same as for the rotary servo motors.
cooling fan Refer to section 8.4.
speed warning
Warning No.: E9 Name: Main circuit off warning
Warning description
Display Detail name
E9.1 Ready-off Same as for the rotary servo motors.
signal on during Refer to section 8.4.
main circuit off
E9.2 Bus voltage
drop during low
speed operation
E9.3 Servo-on signal
on during main
circuit off
The multi-revolution counter value of the absolute position encoder exceeded the maximum range.
Absolute position encoder pulses are faulty.
Cause
Out of the setting range was attempted to write during parameter writing.
Cause
Forced stop signal was turned off.
Cause
The forced stop signal of the servo system controller was enabled.
Cause
The cooling fan speed decreased to the warning occurrence level or less.
Cause
The servo-on command was inputted with main circuit power supply off.
The bus voltage dropped during the direct drive motor driving under 50r/min.
Cause
Stop method: No stop (each-axis detection)
Check method Check result
Stop method: No stop (each-axis detection)
Check method Check result
Stop system: All axes
Check method Check result
Stop system: All axes
Check method Check result
Stop method: No stop (common detection)
Check method Check result
Stop system: All axes (common detection)
Check method Check result
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