L3: stall prevention – Yaskawa iQpump1000 AC Drive Quick Start User Manual

Page 362

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No.

(Addr.

Hex)

Name

LCD Display

Description

Values

Page

L2-10

(048E)

KEB Detection Time

(Minimum KEB Time) KEB Detect Time

Sets the time to perform KEB Ride-Thru.

Default: 50 ms

Min.: 0

Max.: 2000

L2-11

(0461)

DC Bus Voltage

Setpoint during KEB

KEB DC Bus Level

Sets the desired value of the DC bus voltage during KEB Ride-

Thru.

Default:

<2>

[E1-01] × 1.22

Min.: 150 Vdc
Max.: 400 Vdc

<5>

L2-29

(0475)

KEB Method Selection

KEB Mode Sel

0: Single Mode KEB1

1: Single Mode KEB2

2: System Mode

KEB1

3: System Mode

KEB2

0: Single Drive KEB Ride-Thru 1

1: Single Drive KEB Ride-Thru 2

2: System KEB Ride-Thru 1

3: System KEB Ride-Thru 2

Default: 0

Range: 0 to 3

<1> Default setting is dependent on parameter o2-04, Drive Model Selection.
<2> Default setting is dependent on parameter E1-01, Input voltage Setting.
<3> Values shown are specific to 200 V class drives. Double the value for 400 V class drives. Multiply the value by 2.875 for 600 V class drives.
<4> Setting range value is dependent on parameter C1-10, Accel/Decel Time Setting Units. When C1-10 = 0 (units of 0.01 seconds), the setting range

becomes 0.00 to 600.00 seconds.

<5> Values shown are specific to 200 V class drives. Double the value for 400 V class drives. Multiply the value by 2.875 for 600 V class drives, but

set the value below 1040 Vdc (overvoltage protection level).

u

L3: Stall Prevention

No.

(Addr.

Hex)

Name

LCD Display

Description

Values

Page

L3-01

(048F)

Stall Prevention

Selection during

Acceleration

StallP Accel Sel

0: Disabled

1: General purpose

2: Intelligent

0: Disabled.

1: General purpose. Acceleration is paused as long as the current

is above the L3-02 setting.

2: Intelligent. Accelerate in the shortest possible time without

exceeding the L3-02 level.

Default: 1

Range: 0 to 2

L3-02

(0490)

Stall Prevention Level

during Acceleration

StallP Accel Lvl

Used when L3-01 = 1 or 2. 100% is equal to the drive rated

current.

Default:

<1>

Min.: 0%
Max.: 150%

<1>

L3-03

(0491)

Stall Prevention Limit

during Acceleration

StallPAcc LowLim

Sets Stall Prevention lower limit during acceleration when

operating in the constant power range. Set as a percentage of

drive rated current.

Default: 50%

Min.: 0

Max.: 100

L3-04

(0492)

Stall Prevention

Selection during

Deceleration

StallP Decel Sel

0: Disabled

1: General purpose

2: Intelligent

3: StallP +Resistor

4: High Flux Brake

5: High Flux Brake2

0: Disabled. Deceleration at the active deceleration rate. An ov

fault may occur.

1: General purpose. Deceleration is paused when the DC bus

voltage exceeds the Stall Prevention level.

2: Intelligent. Decelerate as fast as possible while avoiding ov

faults.

3: Stall Prevention with braking resistor. Stall Prevention during

deceleration is enabled in coordination with dynamic braking.

4: Overexcitation Deceleration. Decelerates while increasing

the motor flux.

5: Overexcitation Deceleration 2. Adjust the deceleration rate

according to the DC bus voltage.

Note:

Setting 3 is not available in models 4A0930 and

4A1200.

Default: 0

Range: 0 to 5

L3-05

(0493)

Stall Prevention

Selection during Run

StallP Run Sel

0: Disabled

1: Decel time

2: Decel time 2

0: Disabled. Drive runs at a set frequency. A heavy load may

cause speed loss.

1: Decel time 1. Uses the deceleration time set to C1-02 while

Stall Prevention is performed.

2: Decel time 2. Uses the deceleration time set to C1-04 while

Stall Prevention is performed.

Default: 0

Range: 0 to 2

L3-06

(0494)

Stall Prevention Level

during Run

StallP Run Level

V/f

V/f

Enabled when L3-05 is set to 1 or 2. 100% is equal to the drive

rated current.

Default:

<1>

Min.: 30%
Max.: 150%

<1>

B.8 L: Protection Function

362

YASKAWA TOEP YAIP1W 01B YASKAWA AC Drive - iQpump1000 Quick Start Guide

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