Chapter 12
•
Over current occurs at
the start
At the st
loses synchronization
and no acceleration is
observed.
Chapter 12
Not successful
• When the above
successful adjustment, special adjustment may be
necessary. Please contact the sales officer of our
company.
!
Phenomenon
Over current occurs at
the start
At the start, the motor
loses synchronization
and no acceleration is
observed.
Loss of
synchronization,
hunting, and/or over
current occur at low
speeds (at the lowest
frequency(switch) or
even lower).
Loss of
synchronization,
hunting, and/or over
current occur at low
speeds (at the lowest
frequency(switch) or
even lower) and with a
heavy load.
The drive becomes
unstable at low speeds
(at the lowest
frequency(switch) or
even lower)
Chapter 12
Not successful
n the above-described procedures fail to allow
successful adjustment, special adjustment may be
necessary. Please contact the sales officer of our
Phenomenon
Over current occurs at
art, the motor
loses synchronization
and no acceleration is
synchronization,
hunting, and/or over
current occur at low
speeds (at the lowest
frequency(switch) or
even lower).
synchronization,
hunting, and/or over
current occur at low
speeds (at the lowest
frequency(switch) or
even lower) and with a
The drive becomes
unstable at low speeds
(at the lowest
frequency(switch) or
even lower)
described procedures fail to allow
successful adjustment, special adjustment may be
necessary. Please contact the sales officer of our
Estimated cause(s)
• Insufficient starting
torque
►
Misalignment of the
output phases and
the motor's
magnetic
positions
• Insufficient torque
• Misalignment of the
output phases and
the motor's
magnetic
positions
• Misalignment of the
output phases and
the motor's
magnetic
positions
described procedures fail to allow
successful adjustment, special adjustment may be
necessary. Please contact the sales officer of our
Estimated cause(s)
►
Insufficient starting
Misalignment of the
output phases and
the motor's
magnetic-pole
positions
Insufficient torque
Misalignment of the
output phases and
the motor's
magnetic-pole
positions
Misalignment of the
output phases and
the motor's
magnetic-pole
positions
12-9-26
described procedures fail to allow
successful adjustment, special adjustment may be
necessary. Please contact the sales officer of our
►
Misalignment of the
•
Enabl
correction [Hd
•
Adjust each of the speed control P gain [Hd
speed control I gain [Hd
The adjustment should be conducted so that [Hd
[Hd-46].
Some motor characteris
raising and lowering the settings.
• Adjust the waiting time for open
incrementing it by 5 each time. Some motor characteristics
require an adjustment by raising and lowering the settings.
Misalignment of the
• Enable the selection of open
correction [Hd
• Adjust each of the speed control P gain [Hd
speed control I gain [Hd
The adjustment should be conducted so t
[Hd-46].
Some motor characteristics require an adjustment by
raising and lowering the settings.
• Adjust the waiting time for open
incrementing it by 5 each time. Some motor characteristics
require an adjustment by
• Adjust by decrementing the current limit of IVMS threshold
[Hd-51] by 5
provide instability with excessively small settings.
• Adjust by decrementing the IVMS threshold gain [Hd
5 each time. Some motor characteristics require an
adjustment by raising and lowering the settings.
Misalignment of the
output phases and
• Adjust by decrementing the IVMS detection current filter
gain [Hd
require an adjustment by raising and lowering the settings.
• Adjust the waiting time for open
incrementing it by 5 each time. Some motor characteristics
require an adjustment by raising and lowering th
26
Exemplar measures to be taken
Enable the selection of open
correction [Hd-44].
Adjust each of the speed control P gain [Hd
speed control I gain [Hd
The adjustment should be conducted so that [Hd
46].
Some motor characteris
raising and lowering the settings.
Adjust the waiting time for open
incrementing it by 5 each time. Some motor characteristics
require an adjustment by raising and lowering the settings.
Enable the selection of open
correction [Hd-44].
Adjust each of the speed control P gain [Hd
speed control I gain [Hd
The adjustment should be conducted so t
46].
Some motor characteristics require an adjustment by
raising and lowering the settings.
Adjust the waiting time for open
incrementing it by 5 each time. Some motor characteristics
require an adjustment by
Adjust by decrementing the current limit of IVMS threshold
51] by 5 each time. Some motor characteristics may
provide instability with excessively small settings.
Adjust by decrementing the IVMS threshold gain [Hd
5 each time. Some motor characteristics require an
adjustment by raising and lowering the settings.
Adjust by decrementing the IVMS detection current filter
gain [Hd-42] by 5 each time.
require an adjustment by raising and lowering the settings.
Adjust the waiting time for open
incrementing it by 5 each time. Some motor characteristics
require an adjustment by raising and lowering th
Exemplar measures to be taken
e the selection of open-phase switch threshold
Adjust each of the speed control P gain [Hd
speed control I gain [Hd-46] by 10 each time.
The adjustment should be conducted so that [Hd
Some motor characteristics require an adjustment by
raising and lowering the settings.
Adjust the waiting time for open-phase switching [Hd
incrementing it by 5 each time. Some motor characteristics
require an adjustment by raising and lowering the settings.
Enable the selection of open-phase switch threshold
Adjust each of the speed control P gain [Hd
speed control I gain [Hd-46] by 10 each time.
The adjustment should be conducted so t
Some motor characteristics require an adjustment by
raising and lowering the settings.
Adjust the waiting time for open-phase switching [Hd
incrementing it by 5 each time. Some motor characteristics
require an adjustment by raising and lowering the settings.
Adjust by decrementing the current limit of IVMS threshold
each time. Some motor characteristics may
provide instability with excessively small settings.
Adjust by decrementing the IVMS threshold gain [Hd
5 each time. Some motor characteristics require an
adjustment by raising and lowering the settings.
Adjust by decrementing the IVMS detection current filter
42] by 5 each time. Some motor characteristics
require an adjustment by raising and lowering the settings.
Adjust the waiting time for open-phase switching [Hd
incrementing it by 5 each time. Some motor characteristics
require an adjustment by raising and lowering th
Inverter Function
Exemplar measures to be taken
phase switch threshold
Adjust each of the speed control P gain [Hd-45] and the
46] by 10 each time.
The adjustment should be conducted so that [Hd
tics require an adjustment by
raising and lowering the settings.
phase switching [Hd
incrementing it by 5 each time. Some motor characteristics
require an adjustment by raising and lowering the settings.
phase switch threshold
Adjust each of the speed control P gain [Hd-45] and the
46] by 10 each time.
The adjustment should be conducted so that [Hd
Some motor characteristics require an adjustment by
raising and lowering the settings.
phase switching [Hd
incrementing it by 5 each time. Some motor characteristics
raising and lowering the settings.
Adjust by decrementing the current limit of IVMS threshold
each time. Some motor characteristics may
provide instability with excessively small settings.
Adjust by decrementing the IVMS threshold gain [Hd
5 each time. Some motor characteristics require an
adjustment by raising and lowering the settings.
Adjust by decrementing the IVMS detection current filter
Some motor characteristics
require an adjustment by raising and lowering the settings.
-phase switching [Hd
incrementing it by 5 each time. Some motor characteristics
require an adjustment by raising and lowering th
Inverter Function
Exemplar measures to be taken
phase switch threshold
45] and the
46] by 10 each time.
The adjustment should be conducted so that [Hd-45]
≤
tics require an adjustment by
phase switching [Hd-47] by
incrementing it by 5 each time. Some motor characteristics
require an adjustment by raising and lowering the settings.
phase switch threshold
45] and the
46] by 10 each time.
hat [Hd-45]
≤
Some motor characteristics require an adjustment by
phase switching [Hd-47] by
incrementing it by 5 each time. Some motor characteristics
raising and lowering the settings.
Adjust by decrementing the current limit of IVMS threshold
each time. Some motor characteristics may
provide instability with excessively small settings.
Adjust by decrementing the IVMS threshold gain [Hd-52] by
5 each time. Some motor characteristics require an
adjustment by raising and lowering the settings.
Adjust by decrementing the IVMS detection current filter
Some motor characteristics
require an adjustment by raising and lowering the settings.
phase switching [Hd-47] by
incrementing it by 5 each time. Some motor characteristics
require an adjustment by raising and lowering the settings.
Inverter Function
52] by
47] by
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 ...