Yaskawa G7 Drive User Manual

Page 176

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User Parameter Tables

5-

65

* In Flux Vector or in Open Loop Vector 2, the setting range becomes 0 to 2.
* *1 Values shown here are for 208-240V drives. Double the value when working with 380-480V drives.

L3-05

Stall
Prevention
Selection
During
Running

Selects the stall prevention

method to use to prevent Drive
faults during run.

0: Disabled - Drive runs a set

frequency. A heavy load
may cause the Drive to trip
on an OC or OL fault.

1: Decel Time 1 - In order to

avoid stalling during heavy
loading, the Drive will
decelerate at Decel time 1
(C1-02) if the output current
exceeds the level set by
L3-06. Once the current
level drops below the L3-06
level, the Drive will
accelerate back to its
frequency reference at the
active acceleration rate.

2: Decel Time 2 - Same as

setting 1 except the Drive
decelerates at Decel Time 2
(C1-04).

When output frequency is 6Hz

or less, stall prevention during
run is disabled regardless of
the setting in L3-05.

0 to 2

1

No

A

A

No

No

No

493H

StallP Run
Sel

L3-06

Stall
Prevention
Level
During
Running

This parameter is enabled when
L3-05 is set to "1" or "2". Drive
rated current is set as 100%.
Decrease the set value if
stalling or excessive current
occurs with the factory settings.

30

to

200

160%

No

A

A

No

No

No

494H

StallP Run
Level

L3-11

OV
Suppression
Function
Selection

Enables or disables 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

0 to 1

0

No

No

No

A

A

A

4C7H

OV Inhibit
Sel

L3-12

OV
Suppression
Function
Voltage
Level

Sets the DC bus voltage level at
which the OV suppression
function is active.
Normally, this setting does not
require adjustment. Decrease
the value if overvoltage occurs
even when OV suppression is
enabled.

350

to

390

*1

380V

*1

No

No

No

A

A

A

4C8H

OV Inhbt
VoltLvl

Parameter

Number

Name

Description

Setting

Range

Factory

Setting

Change

during

Operation

Control Methods

MODBUS

Register

Display

V/f

V/f

with

PG

Open

Loop

Vector

1

Flux

Vector

Open

Loop

Vector

2

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