Alarm Function Activated - Mitsubishi Electric MELIPM Series Instruction Manual

If any of the messages in Table 6-2 appears, the drive unit is assumed to have
failed. If the same message reappears after an alarm reset, immediately replace
the drive unit.
Table 6-2
Parameter Protective
Unit Display Function Name
Storage device
Brake circuit fault

6.1.2 Alarm function activated

If the alarm function is activated during motor operation, any of the displays in
Table 6-3 is provided on the parameter unit.
If you ignore the alarm message and continue operation, the fault detection
function is activated, leading to an operation stop. When you noticed that the
alarm function had been activated, immediately remove its cause.
That the alarm function has been activated can be exported as an
alarm signal.
MEMO
Table 6-3
Parameter Protective Function Name
Unit Display
Pr. 22 setting [Section 8.5.4]
Main circuit DC voltage more
Refer to: Pr. 244 [Section 8.5.5]
CPU fault
The CPU malfunctioned or failed.
The storage device failed.
fault
The regenerative brake circuit failed.
• If E. BE reappears after a reset, immediately
switch power off.
Leaving power on will overheat the brake
resistor.
Refer to: Chapter 8, 8.7.2 Selection of the control
Detection Level
Overload 1
Overload 2
than 390V
Fan failure
Cooling fan fault
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Possible Cause ( ) and
Corrective Action (•)
circuit output terminal functions
Related Protective Function
Acceleration-time overcurrent, constant
speed-time overcurrent, deceleration-
time overcurrent, stall stop
Deceleration-time overvoltage
Fin overheat
6-4
6. TROUBLESHOOTING