Restart On Overvoltage/Overcurrent - Omron RX2 Series User Manual

8 Applied Settings
(Ex.6) When [bb-20] ≠00 and [bb-24] = 04, it restarts by picking up the frequency, and then after decel-
eration according to the setting, the motor trips when stopped.
Control Power Supply
Inverter
Output
Motor Speed
Output signal
[AL]
Note The motor will trip after instantaneous power failure allowable time.
8-2-7

Restart on Overvoltage/Overcurrent

Restart Overcurrent
In case of overcurrent, you can restart without causing tripping.
Precautions for Correct Use
If overcurrent continues to be observed, there are some possible causes: short acceleration
time, heavy load, locked motor, etc.
 Parameter
Item
Over current detection
level, 1st-motor
The number of retries
after over current
Selection of restart
mode @over-current
Wait time of restart
@over-current
*1. On the parameter about the current and the voltage, the figures and the units to be handled vary in the setting
path.
1) Operator or CX-Drive: 0.1 A or 0.1 V (When CX-Drive is operated, set [CF-11] Resister data selection to 00
(A,V). When the data of [CF-11] Resister data selection is not set to 00 (A,V), it is not set or displayed correctly.)
2) Modbus: The current and the voltage vary, depending on the setting of Resister data selection [CF-11].
When [CF-11] Resister data selection is set to 00 (A,V), 0.1 A, 0.1 V
When [CF-11] Resister data selection is set to 01 (%), 0.01% (Rated ratio)
3) Drive programming: 0.01% (Rated ratio)
8 - 58
Instantaneous power
failure allowable time
Free Running
IP error occurs
Retry Standby
Time
Parameter Data
Inverter ND
rated current
[bb160]
*1
× (0.2 to 2.2)
[bb-22] 0 to 5 (Counts)
00
01
02
[bb-28]
03
04
[bb-29] 0.3 to 100.0(s)
High-function General-purpose Inverter RX2 Series User's Manual
Description
Sets the level at which the overcurrent is to
be detected.
Sets the retry counts in case of overcurrent.
If this is set to 0, the motor will trip upon
overcurrent.
Restarts at 0 Hz
Restarts with the frequency matching
Restarts upon frequency pull-in
Detection speed (frequency) <v2.00 or
higher>
Trips after decelerating and stopping with
the frequency matching
Restarts after waiting for the set time upon
overcurrent.
Default
data
2.2 ×
ND
Rated
current
0
01
0.3