Mitsubishi FR-A500 Series Instruction Manual page 202

Operation Panel
Indication
Name
Description
Check point
Corrective action
Operation Panel
Indication
Name
Description
Check point
Corrective action
Operation Panel
Indication
Name
Description
Check point
Corrective action
Operation Panel
Indication
Name
Description
Check point
Corrective action
Operation Panel
Indication
Name
Description
Check point
Corrective action
E. 6
E. 7
CPU error
This function stops the inverter output if a communication error occurs in the
built-in CPU.
Contact your sales representative.
E.P24
24VDC power output short circuit
When the 24VDC power output from the PC terminal is shorted, this function
shuts off the power output. At this time, all external contact inputs switch off. The
inverter cannot be reset by entering the RES signal. To reset, use the operation
panel or switch power off, then on again.
Check for a short circuit in the PC terminal output.
Remedy the short circuit portion.
E.CTE
Operation panel power supply short circuit
When the operation panel power supply (P5S of the PU connector) is shorted,
this function shuts off the power supply output. At this time, the operation panel
(parameter unit) cannot be used and RS-485 communication from the PU
connector cannot be made. To reset, enter the RES signal or switch power off,
then on again.
Check for a short circuit in the PU connector cable.
Check the PU and cable.
E.MB1
to 7
Brake sequence error
• The inverter output is stopped when a sequence error occurs during use of the
brake sequence function (Pr. 278 to Pr. 285).
• If (detected frequency) - (output frequency) has become less than Pr. 285
during PLG feedback or orientation control selected with the FR-A5AP, E.MB1
occurs and the inverter output is stopped.
Find the cause of alarm occurrence.
Perform parameter setting check and wiring properly.
E.0SD
Excessive speed deviation detection
The inverter output is stopped if the motor speed increased or decreased due to
load, etc. during vector control executed with the FR-A5AP cannot be controlled
to meet the speed command value.
Check for sudden load change.
Take action to avoid sudden load change.
PROTECTIVE FUNCTIONS
FR-PU04

FR-PU04
FR-PU04
FR-PU04
FR-PU04
Excessive speed deflection
188
Fault 6
Fault 7
E.P24

