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Parameters a - 33, Torque limit, Hardware protection – Yaskawa F7 Drive User Manual User Manual

Page 198: Table a.1 f7 parameter list (continued)

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Parameters A - 33

L6-02

Torque Detection Level 1
Torq Det 1 Lvl

Sets the Overtorque/Undertorque detection level as a percentage of
Drive rated current or torque for torque detection 1. Current
detection for A1-02 = 0 or 1. Torque detection for A1-02 = 2 or 3.

0 to 300

150%

A

A

A

A

L6-03

Torque Detection Time 1
Torq Det 1 Time

Sets the length of time an Overtorque/Undertorque condition must
exist before torque detection 1 recognized by the Drive.

0.0 to

10.0

0.1sec

A

A

A

A

L6-04

Torque Detection
Selection 2
Torq Det 2 Sel

Determines the Drive's response to an Overtorque/Undertorque
condition. Overtorque and Undertorque are determined by the
settings in parameters L6-05 and L6-06. The multi-function output
settings “18” and “19” in the H2-

parameter group are also

active if programmed.
0: Disabled
1: OL4 at Speed Agree - Alarm (Overtorque Detection only active

during Speed Agree and Operation continues after detection).

2: OL4 at RUN - Alarm (Overtorque Detection is always active and

operation continues after detection).

3: OL4 at Speed Agree - Fault (Overtorque Detection only active

during Speed Agree and Drive output will shut down on an OL4
fault).

4: OL4 at RUN - Fault (Overtorque Detection is always active and

Drive output will shut down on an OL4 fault).

5: UL4 at Speed Agree - Alarm (Undertorque Detection is only

active during Speed Agree and operation continues after

detection).

6: UL4 at RUN - Alarm (Undertorque Detection is always active

and operation continues after detection).

7: UL4 at Speed Agree - Fault (Undertorque Detection only active

during Speed Agree and Drive output will shut down on an OL4
fault).

8: UL4 at RUN - Fault (Undertorque Detection is always active and

Drive output will shut down on an OL4 fault).

0 to 8

0

A

A

A

A

L6-05

Torque Detection Level 2
Torq Det 2 Lvl

Sets the Overtorque/Undertorque detection level as a percentage of
Drive rated current or torque for torque detection 2. Current
detection for A1-02 = 0 or 1. Torque detection for A1-02 = 2 or 3.

0 to 300

150%

A

A

A

A

L6-06

Torque Detection Time 2
Torq Det 2 Time

Sets the length of time an Overtorque/Undertorque condition must
exist before torque detection 2 is recognized by the Drive.

0.0 to

10.0

0.1sec

A

A

A

A

Torque Limit

L7-01

Forward Torque Limit
Torq Limit Fwd

Sets the torque limit value as a percentage of the motor rated torque.
Four individual quadrants can be set.

0 to 300

200%

-

-

A

A

L7-02

Reverse Torque Limit
Torq Limit Rev

0 to 300

200%

-

-

A

A

L7-03

Forward Regenerative Torque
Limit
Torq Lmt Fwd Rgn

0 to 300

200%

-

-

A

A

L7-04

Reverse Regenerative Torque
Limit
Torq Lmt Rev Rgn

0 to 300

200%

-

-

A

A

Hardware Protection

L8-01

Internal Dynamic Braking
Resistor Protection
Selection
DB Resistor Prot

Selects the DB protection only when using 3% duty cycle heatsink
mount Yaskawa braking resistor. This parameter does not enable or
disable the DB function of the Drive.
0: Not Provided
1: Provided

0 to 1

0

A

A

A

A

L8-02

Overheat Alarm Level
OH Pre-Alarm Lvl

When the cooling fin temperature exceeds the value set in this
parameter, an overheat alarm (OH) will occur.

50 to

130

Varies

by

kVA

A

A

A

A

L8-03

Overheat Pre-Alarm
Operation Selection
OH Pre-Alarm Sel

Selects the Drive operation upon an OH pre-alarm detection.
0: Ramp to Stop
1: Coast to Stop
2: Fast-Stop
3: Alarm Only

0 to 3

3

A

A

A

A

L8-05

Input Phase Loss
Protection Selection
Ph Loss In Sel

Selects the detection of input current phase loss, power supply volt-
age imbalance, or main circuit electrostatic capacitor deterioration.

0: Disabled
1: Enabled

0 to 1

1

A

A

A

A

Denotes that parameter can be changed when the Drive is running.

Table A.1 F7 Parameter List (Continued)

Parameter

No.

Parameter Name

Digital Operator Display

Description

Setting

Range

Factory

Setting

Control Method

V/F

V/F

w/PG

Open

Loop

Vector

Flux

Vector

Output torque

Positive torque

Reverse

Negative torque

No. of
motor
rotations

Regen. state

Regen. state

Forward