12-13-13
Chapter 12
Inverter Function
12.13.8
Restarting after overcurrent
• Overcurrent occurs rarely, but I want to restart
continuously as it is since there is no problem in the
system.
• I want the system continue to function in case of
overcurrent.
• In case of overcurrent, you can restart without
causing tripping.
Parameters
(Ex. 1) When [bb-22] = 00, tripping occurs
• If overcurrent continues to be observed, there are
some possible causes: short acceleration time,
heavy load, locked motor, etc.
(Ex. 2) When [bb-22]
≠
00 and [bb-28] = 00, it restarts
at 0 Hz.
Item
Parameter
Data
Description
Overcurrent
detection level
[bb160]
Inverter ND rated current
× (0.20~2.20)
Sets the level at which the overcurrent is to be
detected.
Overcurrent retry
count selection
[bb-22]
0~5 (Counts)
Sets the retry counts in case of overcurrent. If this is
set to 0, the motor will trip upon overcurrent.
Overcurrent tripping
retry selection
[bb-28]
00
Restarts at 0 Hz
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
Overcurrent retry
standby time
[bb-29]
0.3~100.0(s)
Restarts after waiting for the set time upon
overcurrent.
Q
A
!
Output current
Inverter
Output
Motor Speed
[AL]
Overcurrent Detection Level
Free Running
Overcurrent error occurs
Output Current
Inverter
Output
Motor Speed
[AL]
Overcurrent Detection Level
Free Running
Retry Standby Time
Summary of Contents for SJ Series
Page 39: ...5 4 Chapter 5 Included Items Memo ...
Page 55: ...6 16 Chapter 6 Installation Memo ...
Page 91: ...7 36 Chapter 7 Wire Connection and Optional Devices Memo ...
Page 135: ...9 40 Chapter 9 Operating Instructions Memo ...
Page 145: ...10 10 Chapter 10 Test Run Memo ...
Page 159: ...12 2 6 Chapter 12 Inverter Functions Memo ...
Page 169: ...12 3 10 Chapter 12 Inverter Functions Memo ...
Page 195: ...12 5 8 Chapter 12 Inverter Functions Memo ...
Page 217: ...12 8 12 Chapter 12 Inverter Function Memo ...
Page 287: ...12 10 32 Chapter 12 Inverter Functions Memo ...
Page 303: ...12 11 16 Chapter 12 Inverter Functions Memo ...
Page 349: ...12 15 8 Chapter 12 Inverter Function Memo ...
Page 395: ...12 17 34 Chapter 12 Inverter Functions Memo ...
Page 397: ...12 18 2 Chapter 12 Inverter Functions Memo ...
Page 415: ...12 19 18 Chapter 12 Inverter Function Memo ...
Page 581: ...15 10 Chapter 15 Optional Cassettes Memo ...
Page 591: ...16 10 Chapter 16 ProDriveNext EzSQ Memo ...
Page 642: ...18 49 Chapter 18 Tips FAQ Troubleshooting Memo ...
Page 650: ...19 8 Chapter 19 Maintenance and Inspection Memo ...
Page 781: ...Appendix 1 70 Appendix 1 List of Parameters Memo ...