Specifications

41
Continue Operation by Automatic Fault
Reset (Fault Restart)
Number of auto restart attempts L5-01
Auto restart operation selection L5-02
If a failure occurs in the inverter, the inverter performs self-
diagnosis and automatically restarts operation.
The self-diagnosis and restart count can be set in constant
L5-01 (up to 10 times). Fault retry signal can be set to be
output (L5-02 : 1) or no output (L5-02 : 0).
The following faults are dealt with by this function.
・OC（overcurrent） ・OV（
DC main circuit overvoltage ）
・PUF（fuse blown） ・RH（
braking resistor overheat ）
・GF（ground fault） ・RR（
braking transistor failure ）
・LF（output open-phase）・PF（
main circuit voltage fault ）
・OL1（motor overload） ・OL2（inverter overload）
・OL3（overtorque） ・OL4（overtorque）
・OH1（heatsink overheating）
・UV1
＊
（ main circuit undervoltage, main circuit MC malfunction ）
＊ Retry enabled when main circuit undervoltage (L2-01) is set to 1 or 2
(operation continues after power recovery).
The accumulated error retry count is cleared in the
following cases.
・When no error occurred for 10 minutes after retry
・When error set signal is input after defining the error
・When power is turned OFF
If any fault other than the above faults occurs, a fault
contact output operates to shut off the output and the
motor coasts to a stop.
Note: Do not use this function for any lifting loads.
Temporary Hold of Accel/Decel
Accel/decel hold“OA”
Multi-function input H1-01 to 10
Frequency reference hold function selection
d4-01
When accel/decel hold command is input during
accel/decel, accel/decel is held while the command is
enabled, holding the existing output frequency.
When the stop command is input, the accel/decel hold
status is reset, and it enters the stop status.
Set (Accel/decel hold command) in the input terminal
function (H1-01 to H1-10).By setting H1-01 to H1-10 [Multi-
function input (terminals S3 to S12)] to A (accel/decel
hold), acceleration or deceleration is stopped when the
terminal turns ON and then the output frequency is held.
Acceleration or deceleration starts again when the terminal
turns OFF.
Use d4-01 to specify whether the frequency reference
during hold is to be stored.
d4-01＝0：Disabled (Restarts from zero.)
d4-01＝1：Enabled (Restarts at frequency that was held
previous time.)
Forward Run/Stop
Power Supply
Accel/Decel Hold Stop
Frequency Reference
Output Frequency
Hold Hold
d4-01＝1
d4-01＝0
ON ONOFF OFF
OFF
OFF OFFON ON
Time Chart when Accel/decel Hold Command Used
Constant Descriptions