Programming 155, Sequence, Dc injection braking – Yaskawa F7 Drive Programming Manual User Manual

Page 163: Table a.1 f7 parameter list (continued)

Advertising
background image

Programming 155

Sequence

b1-01

Frequency Reference
Selection
Reference Source

Selects the frequency reference input source.
0: Operator - Digital preset speed U1-01 or d1-01 to d1-17.
1: Terminals - Analog input terminal A1 (or terminal A2 based on

parameter H3-09).

2: Serial Com - Modbus RS-422/485 terminals R+, R-, S+, and S-.
3: Option PCB - Option board connected on 2CN.
4: Pulse Input (Terminal RP)

0 to 4

1

Q

Q

Q

Q

b1-02

Run Command Selection
Run Source

Selects the run command input source.
0: Operator - RUN and STOP keys on Digital Operator.
1: Terminals - Contact closure on terminals S1 or S2.
2: Serial Com - Modbus RS-422/485 terminals R+, R-, S+, and S-.
3: Option PCB - Option board connected on 2CN.

0 to 3

1

Q

Q

Q

Q

b1-03

Stopping Method Selection
Stopping Method

Selects the stopping method when the run command is removed.
0: Ramp to Stop
1: Coast to Stop
2: DC Injection to Stop
3: Coast with Timer (A new run command is ignored if received

before the timer expires).

0 to 3

0

Q

Q

Q

Q

b1-04

Reverse Operation Selection
Reverse Oper

Determines the forward rotation of the motor, and if reverse
operation is disabled.
0: Reverse Enabled
1: Reverse Disabled
2: Exchange Phase - Change direction of forward motor rotation.

0 to 2

0

A

- (A*)

A

- (A*)

b1-05

Minimum Output Frequency
(E1-09) or Less Operation
Selection
Zero-Speed Oper

Operation method when frequency reference is less than minimum
output frequency set in E1-09.
0: Operates according to frequency reference (E1-09 is disabled)
1: Output shuts off (coast to stop if less than E1-09)
2: Operates according to E1-09 (frequency reference set to E1-09)
3: Zero speed (frequency reference of zero is less than E1-09)

0 to 3

0

-

-

-

A

b1-06

Digital Input Scan Time
Cntl Input Scans

Sets the scan rate of terminals S1 to S8.
0: 2ms - 2 scans (for quick response)
1: 5ms - 2 scans (for noisy environments)

0 to 1

1

A

A

A

A

b1-07

Local/Remote Run Selection
LOC/REM RUN Sel

0: Cycle External RUN - If the run command is closed when

switching from local mode to remote mode, the Drive will not
run.

1: Accept External RUN - If the run command is closed when

switching from local mode to remote mode, the Drive WILL
run.

0 to 1

0

A

A

A

A

b1-08

Run Command Selection
During Program
RUN CMD at PRG

0: Disabled - Run command accepted only in the operation menu.
1: Enabled - Run command accepted in all menus

(except when b1-02 = 0).

0 to 1

0

A

A

A

A

DC Injection Braking

b2-01

DC Injection Braking Start
Frequency
DCInj Start Freq

Sets the frequency at which DC injection braking starts when ramp
to stop (b1-03 = 0) is selected. If b2-01< E1-09, DC Injection
braking starts at E1-09.

0.0 to

10.0

0.5Hz

A

A

A

A

b2-02

DC Injection Braking Current
DCInj Current

Sets the DC injection braking current as a percentage of the Drive
rated current.

0 to 100

50%

A

A

A

-

b2-03

DC Injection Braking Time at
Start
DCInj Time @Start

Sets the time of DC injection braking at start in units of 0.01
seconds.

0.00 to

10.00

0.00sec

A

A

A

A

b2-04

DC Injection Braking Time at
Stop
DCInj Time @Stop

Sets the time length of DC injection braking at stop in units of 0.01
seconds.
1. When b1-03 = 2, actual DC Injection time is calculated as

follows: b2-04 * 10 * Output Frequency / E1-04.

2. When b1-03 = 0, this parameter determines the amount of time

DC Injection is applied to the motor at the end of the decel ramp.

3. This should be set to a minimum of 0.50 seconds when using

HSB. This will activate DC injection during the final portion of
HSB and help ensure that the motor stops completely.

0.00 to

10.00

0.00sec

A

A

A

A

b2-08

Magnetic Flux Compensation
Capacity
Field Comp

Sets the magnetic flux compensation as a percentage of the no-load
current value (E2-03).

0 to1000

0%

-

-

A

-

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

* For parameter b1-04 settings 0, 1.

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

Advertising