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8 Applied Settings
High-function General-purpose Inverter RX2 Series User’s Manual
8-2 Tripless Functions
8
8-2-7 Restart on Overvoltage/Overcurrent
In case of overvoltage, you can restart without causing tripping.
Precautions for Correct Use
If overvoltage continues to be observed, there are some possible causes: short deceleration
time, heavy load, motor operated by external force, etc.
Parameter
(Ex.1) When [bb-23] = 00, tripping occurs
(Ex.2) When [bb-23] ≠00 and [bb-30] = 00, it restarts at 0 Hz.
Restart Overvoltage
Item Parameter Data Description
Default
data
The number of retries
after over voltage
[bb-23] 0 to 5 (Counts)
Sets the retry counts in case of overvoltage.
If this is set to 0, the motor will trip upon
overvoltage.
0
Selection of restart
mode @over-voltage
[bb-30]
00 Restarts at 0 Hz
01
01 Restarts with the frequency matching
02 Restarts upon frequency pull-in
03
Detection speed (frequency) <v2.00 or
higher>
04
Trips after decelerating and stopping with
the frequency matching
Wait time of restart
@over-voltage
[bb-31] 0.3 to 100.0(s)
Restarts after waiting for the set time upon
overvoltage.
0.3
P-N Voltage
Overvoltage Detection Level
Free Running
Motor Speed
Inverter
Output
Overvoltage error occurs
Output signal
[AL]
Retry Standby Time
P-N Voltage
Overvoltage Detection Level
Free Running
Motor Speed
Inverter
Output
Output signal
[AL]
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