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Causes And Corrective Actions - Mitsubishi Electric FR-E700 Basic Instruction Manual

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Causes and corrective actions

4.3
Causes and corrective actions
(1) Error message
A message regarding operational troubles is displayed. Output is not shutoff.
Operation panel
HOLD
indication
Name
Operation panel lock
Description
Operation lock mode is set. Operation other than
Check point
Corrective action
Press
Operation panel
Er1
indication
Name
Write disable error
1. You attempted to make parameter setting when Pr. 77 Parameter write selection has been set to disable parameter
write.
Description
2. Frequency jump setting range overlapped.
3. The PU and inverter cannot make normal communication.
1. Check the setting of Pr. 77 Parameter write selection. (
Check point
2. Check the settings of Pr. 31 to Pr. 36 (frequency jump). (
3. Check the connection of the PU and inverter.
Operation panel
Er2
indication
Name
Write error during operation
When parameter write was performed during operation with a value other than "2" (writing is enabled independently
Description
of operation status in any operation mode) is set in Pr. 77 and the STF (STR) is ON.
1. Check the Pr. 77 setting. (
Check point
2. Check that the inverter is not operating.
1. Set "2" in Pr. 77.
Corrective action
2. After stopping operation, make parameter setting.
Operation panel
Er3
indication
Name
Calibration error
Description
Analog input bias and gain calibration values are too close.
Check the settings of C3, C4, C6 and C7 (calibration functions). (
Check point
(applied)).
Operation panel
Er4
indication
Name
Mode designation error
Description
You attempted to make parameter setting in the NET operation mode when Pr. 77 is not 2.
1. Check that operation mode is PU operation mode.
Check point
2. Check the Pr. 77 setting. (
1. After setting the operation mode to the "PU operation mode", make parameter setting. (Refer to page 47)
Corrective action
2. After setting "2" in Pr. 77, make parameter setting.
Operation panel
Err.
indication
Name
Inverter reset
Executing reset using RES signal, or reset command from communication or PU
Description
Displays at powering OFF.
Corrective action
Turn OFF the reset command
98
for 2s to release lock.
Refer to the chapter 4 of the Instruction Manual (applied)).
Refer to the chapter 4 of the Instruction Manual (applied)).
is invalid. (Refer to page 35)
-- - - -- - -- - - -- -
Refer to the chapter 4 of the Instruction Manual (applied)).
Refer to the chapter 4 of the Instruction Manual (applied))
Refer to the chapter 4 of the Instruction Manual

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