H09

Start mode

This function smoothly starts the motor which is coasting after a momentary power failure or after the motor has been subject to external force, without stopping motor.

At startup, this function detects the motor speed and outputs the corresponding frequency, thereby enabling a shock-free motor startup. Although the normal startup method is used, when the coasting speed of the motor is 120 Hz or more as an inverter frequency, when the value set to "F03 Maximum frequency," exceeds the value set to "F15 Frequency limiter (upper limit)." and when the coasting speed is less than 5 Hz as an inverter frequency.

 

H

 

S

T

A

R

T

 

M

O

D

E

 

Set value

0,1,2

 

 

 

 

 

 

 

Set value

 

STM

 

Restart after a

 

Other

 

 

 

 

 

 

 

momentary power

 

operation

 

 

 

 

 

 

 

failure or

 

 

 

 

 

 

 

 

 

 

 

 

 

Line-to-inverter

 

 

 

 

 

 

 

 

 

 

 

switching

 

 

 

 

 

 

0

 

 

OFF /

 

Inactive

 

 

 

 

 

 

 

 

 

not selected

 

(normal starting)

 

 

 

 

1

 

 

 

 

 

 

Active

 

 

 

Inactive

 

 

 

 

 

 

 

(smoothly starting)

 

 

 

 

2

 

 

 

 

 

 

Active

 

 

 

 

 

 

any value

 

ON

 

Active

 

 

 

 

 

 

STM: Start characteristics selection signal(E01 to E09: 26) NOTE:

-1: Automatically restart when overcurrent or overvoltage is detected during smoothly starts.

-2: The coasting speed is used 100 Hz or less as an inverter frequency.

-3: When H09:2 or STM:ON, it needs the time more than normal start even the motor is STOP because the motor speed is detected on ALL situation. And it may be rotated the motor when the load is too small.

-4: Auto tuning(P04/A13: 2) should be done to use this function.

-5: When the used motor slippage is too differ from FUJI motor, the "Slip compensation control (P09, A18)" should be set. The characteristics may not be satisfied.

‹When the operation above is to be problem, this function is not used (inactive).

‹This function may not be satisfied the characteristics because of the load condition, motor constant, operating frequency, coasting speed, wire length, momentary power failure time or external factor.

P24

0.1 s or

0.2 s or

 

longer

longer

 

STM

 

ON

Time

 

 

 

 

 

FWD

 

ON

 

 

 

 

Output

frequency

(motor speed)

Time

Speed Acceleration search

In this section, the output voltage is gradually increased in steps to minimize shock.

Note: The dotted-dashed line indicates motor speed.

H10

Energy-saving operation

‹When the output frequency is fixed (constant-speed operation) at light loads and except for”0.0” is set to F09, "Torque boost 1," this function automatically reduces the output voltage, while minimizing the product (power) of voltage and current.

‹Auto tuning(P04/A13: 2) should be done to use this function.

‹The energy-saving operation does not be operated when set below.

-Under Torque control

-Selected the Automatic torque boost

-Selected the Torque vector control

-Under PG vector control

H

1

0

E

N

E

R

G

Y

 

S

A

V

Set value 0: Inactive

1:Active

Note:

-Use this function for square law reduction torque loads (e.g., fans, pumps). When used for a constant-torque load or rapidly changing load, this function causes a delay in control response.

-The energy-saving operation automatically stops during acceleration and deceleration and when the torque limiting function is activated.

H11

DEC mode

‹This function selects the inverter stopping method when a stop command is entered.

H 1 1 D E C M O D E

Set value 0: Deceleration-to-stop based on data set to "H07 Non-linear acceleration and deceleration"

1: Coasting-to-stop

Note:

This function is effective only when a stop command is entered and, therefore, is ineffective when the motor is stopped by lowering the set frequency.

H12 Instantaneous overcurrent limiting

‹An overcurrent trip generally occurs when current flows above the inverter protective level following a rapid change in motor load. The instantaneous overcurrent limiting function controls inverter output and prohibits the flow of a current exceeding the protective level even when the load changes.

‹As the operation level of the instantaneous overcurrent limiting function cannot be adjusted, the torque limiting function must be used.

As motor generation torque may be

reduced when instantaneous overcurrent limiting is applied, set this function to be inactive for equipment such as elevators, which are

WARNING adversely affected by reduced motor generation torque, in which case an overcurrent trip occurs when the current flow exceeds the inverter protective level. A mechanical brake

should be used to ensure safety. as accident may result.

H

1

2

I

N S

T

C L

Set value 0: Inactive

1:Active

5-36

Page 83
Image 83
Fuji Bikes 5000G11S/P11S instruction manual H09 Start mode, H10 Energy-saving operation, H11 DEC mode, D E C M O D E