Mitsubishi Electric FR-S540E-0.4K-EC Instruction Manual page 52

(3) Warnings
Operation
Panel
Indication
Stall prevention
(OL)
(overcurrent) (*4)
Stall prevention
(oL)
(overvoltage)
PU stop
(PS)
Undervoltage
(UV)
During reset
(Err)
*4. The stall prevention operation current may be set to any value. It is factory set to 150%.
(4) Write errors
Operation
Panel
Indication
Write disable error
(Er1)
Write-while-running
error/mode designation
(Er2)
error
Calibration error
(Er3)
Major failure:When the protective function is activated, the inverter output is shut-off
and an alarm output is provided.
Minor failure:When the protective function is activated, the output is not shut off.
The minor failure signal can be output by making parameter setting.
(Set "98" in Pr. 64 or Pr. 65 (output terminal function selection). Refer
to page 37 .)
Function Name
Function Name
Definition
Current more than 150% of the rated inverter
current flew in the motor and operation is being
performed to prevent the inverter from resulting
in overcurrent shut-off.
Regenerative energy of the motor became
excessive and operation is being performed to
stop the frequency from decreasing to prevent
overvoltage shut-off.
Pr. 75 "reset selection/PU stop selection" had
been set and a stop was made by pressing
STOP
the of the operation panel or parameter
RESET
unit (FR-PU04).
Power supply voltage of the inverter dropped.
During inverter reset (RES signal is ON)
Definition
Write was performed with "1" set in Pr. 77
Frequency jump setting range overlapped.
Parameter write was performed though the
operation panel does not have the write
precedence.
Write was performed during operation.
An attempt was made to change the Pr. 79
setting to the operation mode where the
operation command has been input.
Write was performed in the external
operation mode.
Analog input bias and gain calibration values
are too close.
47
About errors (definitions)
7