Yaskawa AC Drive Z1000 Bypass Technical Manual Instrukcja Użytkownika Pobierz pdf (Strona 325)

No.

(Addr.

Hex)

Name Description Values Page

L3-04

(492)

Stall Prevention Selection

during Deceleration

StallP Decel Sel

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

occur.

0: Disabled

1: General purpose.

1: General Purpose

Deceleration is paused when the DC bus voltage exceeds the Stall Prevention

level.

2: Intelligent.

2: Intelligent

Decelerate as fast as possible while avoiding ov faults.

4: Overexcitation

4: High Flux Brake

Deceleration. Decelerates while increasing the motor flux

5: Overexcitation Deceleration 2.

5: High Flux Brake2

Adjust the deceleration rate according to the DC bus voltage.

Default: 1

Range: 0 to 2; 4, 5

171

L3-06

(494)

Stall Prevention Level

during Run

StallP Run Level

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>

172

L3-11

(4C7)

Overvoltage Suppression

Function Selection

OV Inhibit Sel

Enables or disables the ov suppression function, which allows the drive to

change the output frequency as the load changes to prevent an ov fault.

0: Disabled

1: Enabled

Default: 0

Range: 0, 1

172

L3-25

(46F)

Load Inertia Ratio

Load Inertia Rat

Sets the ratio between the motor and machine inertia. Default: 1.0

Min.: 1.0

Max.: 1000.0

173

<1> Upper limit is dependent on parameter L8-38, Frequency Reduction Selection.

L4: Speed Detection

No.

(Addr.

Hex)

Name LCD Display Description Values Page

L4-05

(49D)

Frequency Reference

Loss Detection Selection

Ref Loss Sel

0: Stop

Run@L4-06PrevRef

0: Stop. Drive stops when the frequency reference is lost.

1: Run. Drive runs at a reduced speed when the frequency

reference is lost.

Default: 1

Range: 0, 1

173

L4-06

(4C2)

Frequency Reference at

Reference Loss

Fref at Floss

Sets the percentage of the frequency reference that the drive

should run with when the frequency reference is lost.

Default: 80.0%

Min.: 0.0

Max.: 100.0

173

L5: Fault Restart

No.

(Addr.

Hex)

Name LCD Display Description Values Page

L5-01

(49E)

Number of Auto Restart

Attempts

Num of Restarts

Sets the number of times the drive may attempt to restart after

the following faults occur: GF, LF, oC, ov, PF, oL1, oL2, oL3,

STo, Uv1.

Default: 0

Min.: 0

Max.: 10

174

L5-02

(49F)

Auto Restart Fault

Output Operation

Selection

Restart Sel

0: Flt Outp Disabld

1: Flt Outp Enabled

0: Fault output not active.

1: Fault output active during restart attempt.

Default: 0

Range: 0, 1

174

L5-03

(4A0)

Time to Continue

Making Fault Restarts

Max Restart Time

Enabled only when L5-05 is set to 0. Causes a fault if a fault

restart cannot occur after the set time passes.

Default: 180.0 s

Min.: 0.0

Max.: 600.0

174

L5-04

(46C)

Fault Reset Interval

Time

Flt Reset Wait T

Sets the amount of time to wait between performing fault

restarts.

Default: 10.0 s

Min.: 0.5

Max.: 600.0

176

L5-05

(467)

Fault Reset Operation

Selection

Fault Reset Sel

0: Continuous

1: Use L5-04 Time

0: Continuously attempt to restart while incrementing restart

counter only at a successful restart (same as F7 and G7).

1: Attempt to restart with the interval time set in L5-04 and

increment the restart counter with each attempt (same as V7).

Default: 1

Range: 0, 1

176

B.9 L: Protection Function

YASKAWA ELECTRIC SIEP YAIZ1B 01D YASKAWA AC Drive – Z1000 Bypass Technical Manual

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