YASKAWA J1000 Technical Manual page 83

5.2 b: Application
Note: After a stop is initiated, any subsequent Run command that is entered will be ignored for a certain time. Do not attempt to start the motor
again until it has come to a complete stop. To start the motor before it has stopped completely, use DC Injection at start
DC Injection Braking Time at Start on page
n b1-04: Reverse Operation Selection
For some applications, reverse motor rotation is not appropriate and may even cause problems (e.g., air handling units, pumps,
etc.). Setting parameter b1-04 to 1 instructs the drive to ignore any Reverse run commands.
No.
b1-04
Setting 0: Reverse Operation Enabled
Possible to operate the motor in both forward and reverse directions.
Setting 1: Reverse Operation Disabled
Drive disregards a Reverse run command or a negative frequency reference.
n b1-07: LOCAL/REMOTE Run Selection
The drive has the following three separate control sources that can be switched using digital inputs or the LO/RE key on the
digital operator (for details
Communication Reference Selection on page
• LOCAL - The digital operator is used to set the reference and the Run command.
• REMOTE - The settings of b1-01 and b1-02 determine where the frequency reference and Run command are input from.
• Serial Communications by MEMOBUS/Modbus.
When switching from LOCAL to REMOTE, or to serial communication, the Run command may already be present at the
location the source was switched to. Parameter b1-07 can be used to determine how the Run command is treated in this case.
No.
b1-07
Setting 0: Run Command Must Be Cycled
If the Run command is issued differently in the old and new control source (e.g. old - terminals, new - serial communications)
and it is active at the new source when switching takes place, the drive will either not start or it will stop if it was running
before. The Run command has to be cycled to start from the new control source.
Setting 1: Continue Running
If the Run command is active at the new control source, the drive starts or continues running. There is no need to cycle the
Run command.
WARNING! The drive may start unexpectedly if switching control sources when b1-07 = 1. Clear all personnel away from rotating machinery
and electrical connections prior to switching control sources. Failure to comply may cause death or serious injury.
n b1-08: Run Command Selection while in Programming Mode
As a safety precaution, the drive will not normally respond to a Run input when the digital operator is being used to adjust
parameters in the Programming Mode (Verify Menu, Setup Mode, Parameter Settings Mode). If required by the application
b1-08 can be used to changed this functionality.
82
Run
Command
ON
Output
Frequency
Motor rpm
Figure 5.4 Coast to Stop
83).
Parameter Name
Reverse Operation Selection
Refer to Setting 1: LOCAL/REMOTE Selection on page 99
99):
Parameter Name
LOCAL/REMOTE Run Selection
http://nicontrols.com
OFF
Drive output frequency is shut off
YASKAWA ELECTRIC SIEP C710606 31B YASKAWA AC Drive – J1000 Technical Manual
(Refer to b2-03:
Setting Range
0 or 1
and Refer to Setting 2: Serial
Setting Range
0 or 1
Default
0
Default
0