Mitsubishi Electric MELSERVO-J3W Series, Instruction Manual

Page: 392 / 500

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