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Causes and corrective actions
Operation panel
indication
PS
FR-PU07 PS
Name
PU stop
Description
Stop with of the PU is set in Pr.75 Reset selection/disconnected PU detection/PU stop selection.
(For Pr.75 refer to page 178.)
Check point
Check for a stop made by pressing of the operation panel.
Corrective
action
Turn the start signal OFF and release with .
Operation panel
indication
RB FR-PU07 RB
Name
Regenerative brake pre-alarm
Description
Appears if the regenerative brake duty reaches or exceeds 85% of the Pr.70 Special regenerative brake duty value.
When the setting of Pr.70 Special regenerative brake duty is the initial value (Pr.70 = "0"), this warning does not occur. If
the regenerative brake duty reaches 100%, a regenerative overvoltage (E. OV_) occurs.
The RBP signal can be simultaneously output with the [RB] display. For the terminal used for the RBP signal output,
assign the function by setting "7 (positive logic) or 107 (negative logic)" in any of Pr.190 to Pr.192 (output terminal
function selection). (Refer to page 144)
Check point
Check that the brake resistor duty is not high.
Check that the Pr.30 Regenerative function selection and Pr.70 Special regenerative brake duty settings are correct.
Corrective
action
Increase the deceleration time.
Check that the Pr.30 Regenerative function selection and Pr.70 Special regenerative brake duty settings.
Operation panel
indication
TH
FR-PU07 TH
Name
Electronic thermal relay function pre-alarm
Description
Appears if the cumulative value of the Pr.9 Electronic thermal O/L relay reaches or exceeds 85% of the preset level. If it
reaches 100% of the Pr.9 Electronic thermal O/L relay setting, a motor overload trip (E. THM) occurs.
The THP signal can be simultaneously output with the [TH] display. For the terminal used for THP signal output,
assign the function by setting "8 (positive logic) or 108 (negative logic)" in any of Pr.190 to Pr.192 (output terminal
function selection). (Refer to page 144)
Check point
Check for large load or sudden acceleration.
Is the Pr.9 Electronic thermal O/L relay setting is appropriate? (Refer to page 130)
Corrective
action
Reduce the load and speed of operation.
Set an appropriate value in Pr.9 Electronic thermal O/L relay. (Refer to page 130)
Operation panel
indication
MT
FR-PU07 MT
Name
Maintenance signal output
Description
Indicates that the cumulative energization time of the drive unit has reached a given time.
When the setting of Pr.504 Maintenance timer alarm output set time is the initial value (Pr.504 = "9999"), this warning does
not occur.
Check point
The Pr.503 Maintenance timer setting is larger than the Pr.504 Maintenance timer alarm output set time setting.
(Refer to page 248)
Corrective
action
Setting "0" in Pr.503 Maintenance timer erases the signal.
Operation panel
indication
HP1, HP2
,
FR-PU07 ——
Name
Home position return error
Description
Appears when an error occurs during the home position return operation under position control. (Refer to page 104)
Check point
Identify the cause of the error occurrence.
Corrective
action
Check the parameter setting, and check that the input signal is correct.