6. Function Description
6-67
6.5.9 Speed search
This is used to restart the motor during coasting without stopping the motor. The setting for using this function is
related to setting of FUN_58 and FUN_59. CON_49 are required for this function. The proper values should be set
depending on the inertia moment (GD
²) of the load and the torque of the motor in use.
Code LCD display Description
Setting
range
Unit
Factory
setting
CON_49 Speed Search Speed search setting 1111 0100
FUN_58 Power-on Run Power on Run selection
Yes
No
No
FUN_59 RST Restart Restart after fault reset
Yes
No
No
CON_49 speed search setting is as follows.
Set value
Code
Bit4 Bit3 Bit2 Bit1
Description
√
Speed search during Accelerating
√
Speed search during a Fault Reset restarting
√
Speed search during Instant Power Failure restarting.
CON_49
√
Speed search when FUN_58 Power ON starting is set to
“Yes”
(1) Bit 1
0: The motor is normally accelerated without the speed search operation.
1: The speed search operation is enabled at the time of acceleration.
(Automatic restart and FUN_58[Power-on start enable] included)
(2)
Bit 2
0: The motor is normally accelerated without the speed search operation after the trip occurs.
1: The speed search is enabled at the time of restart after the trip occurs.
(Automatic restart and FUN_59[Restart enable after fault reset] included)
(3) Bit 3
0: The motor stops when instantaneous power failure occurs. Run command should be turned ON again to
restart the operation.
1: The speed search is enabled at the time of restart after the instantaneous power failure occurs.
(4) Bit 4
0: The motor is normally accelerated only when FUN_58 [Power-on start enable] is set to Yes.
1: The speed search operation is enabled at the time of acceleration when FUN_58 [Power-on start enable] is
set to Yes.
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