HP 30 HP30 User Manual

Page 111

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Chapter 6 - Parameter Description [FU2]

6-19
















This function is used to permit automatic restarting after
Power ON, Fault Reset, and Instant Power Failure without
waiting for the motor to stop.
The speed search gain should be set after considering the
inertia moment (GD

2

) and magnitude of torque of the load.

FU2-37 [Load Inertia] must be set at the correct value to
make this function operate correctly.

FU2-22 [Speed Search Select]

Setting Range

4

th

bit 3

rd

bit 2

nd

bit 1

st

bit

Description

0

0

0

0 Speed search function does not work

0

0

0

1 Speed search during Accelerating

0 0 1 0

Speed search during a Fault Reset
restarting (FU2-21) and Auto restarting
(FU2-26)

0 1 0 0

Speed search during Instant Power
Failure restarting.

1 0 0 0

Speed search during Power ON

starting (FU2-20)

When FU2-22 is set to ‘1111’, Speed Search works for all
conditions.


FU2-22 [Speed Search Selection] selects the speed
search function.

FU2-23 [Current Limit Level] is the current that the inverter
limits its current rise during speed searching. (The set
value is the percentage of FU2-33 [Rated Motor Current])

FU2-24 [P Gain] is the proportional gain used for speed
search. Set this value according to load inertia set in FU2-
37.

FU2-25 [I Gain] is the Integral gain used for speed search.
Set this value according to load inertia set in FU2-37.
























[Speed Search Operation]







FU2-26: Number of Auto Restart Attempt
FU2-27: Delay Time Before Auto Restart










Input Power

Time

Motor Speed

Time

Output Frequency

Output Voltage

Time

Time

Input Power loss

FU2

► SS Sup-Curr

23 100 %

100

23

Factory Default:

100 %

100

FU2

► SS P-gain

24 100

100

24

Factory Default:

100

100

FU2

► SS I-gain

25 1000

1000

25

Factory Default:

1000

100

FU2

►Retry number

26 0

0

26

Factory Default:

0

0

FU2

►Retry delay

27 1.0 sec

1.0

27

Factory Default:

1.0 sec

1.0

Related Functions: FU2-20 [Power ON Start]

FU2-21 [Restart after Fault Reset]

FU2-26 ~ FU2-27 [Auto Restart]

FU2-30 ~ FU2-37 [Motor Parameters]

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