65
Causes and corrective actions
Operation Panel
Indication
RB
FR-PU04
RB
Name
Regenerative brake prealarm
Description
Appears if the regenerative brake duty reaches or exceeds 85% of the
Pr. 70 Special regenerative brake
duty
value. If the regenerative brake duty reaches 100%, a regenerative overvoltage
(E. OV_) occurs.
Appears only for the 01800 or more.
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
values are
correct.
Corrective action
• Increase the deceleration time.
• Check the
Pr. 30 Regenerative function selection
and
Pr. 70 Special regenerative brake duty
values.
Operation Panel
Indication
TH
FR-PU04
TH
Name
Electronic thermal relay function prealarm
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 shut-off
(E. THM) occurs.
The THP signal can be simultaneously output with the [TH] display. For the terminal used for the THP
signal output, assign the function by setting "8" (positive logic) or "108" (negative logic) in any of
Pr. 190
to Pr. 196 (output terminal function selection)
.
(Refer to
Instruction Manual (applied))
Check point
1. Check for large load or sudden acceleration.
2. Is the
Pr. 9 Electronic thermal O/L relay
setting is appropriate?
(Refer to page 32.)
Corrective action
1. Reduce the load weight or the number of operation times.
2. Set an appropriate value in
Pr. 9 Electronic thermal O/L relay
.
(Refer to page 32.)
Operation Panel
Indication
MT
FR-PU04
————
Name
Maintenance signal output
Description
Indicates that the cumulative energization time of the inverter has reached a given time.
Check point
The
Pr. 503 Maintenance timer
setting is larger than the
Pr. 504 Maintenance timer alarm output set time
setting.
(Refer to
Instruction Manual (applied).)
Corrective action
Setting "0" in
Pr. 503 Maintenance timer
erraces the signal.
Operation Panel
Indication
CP
FR-PU04
————
Name
Parameter copy
Description
Appears when parameters are copied between models with capacities of 01160 or less and 01800 or
more.
Check point
Resetting of
Pr.9, Pr.30, Pr.51, Pr.52, Pr.54, Pr.56, Pr.57, Pr.70, Pr.72, Pr.80, Pr.90, Pr.158, Pr.190 to Pr.196,
and
Pr.893
is necessary.
Corrective action
Set the initial value in
Pr. 989 Parameter copy alarm release
.
Summary of Contents for FR-F 700 EC
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