Yaskawa E7 Drive User Manual - Manual (Page 82)

Programming 5 - 8
Fig 5.7 Coast to Stop with Timer
„ b1-04 Reverse Operation
For some applications reverse motor rotation is not applicable and may even cause problems (e.g., air handling units, pumps,
etc.). Setting parameter b1-04 to 1 or 3 will cause the Drive to ignore any inputs for reverse operation. Setting parameter b1-04
to either 2 or 3 will change the motor shaft rotation when a Forward Run command is given by exchanging the order of the
output phasing.
The factory default setting of parameter b1-04 is “1: Disabled”. When b1-04= “1: Disabled”, reverse operation is prohibited
and no exchanging of output phasing occurs.
Drive terminal S2 is a dedicated input for reverse Run/Stop.
„ b1-07 Local/Remote Run Selection
When the Drive is switched between the Local (Hand) mode (the digital operator) to the Remote (Auto) mode (determined by
b1-01 and b1-02), there is the possibility that a Run command is already present (i.e. a contact closure between S1 and SN
when b1-02= “1: Terminals”). Parameter b1-07 determines whether the Drive will:
Ignore the external Run command until it is removed and re-instated (b1-07= “0: Cycle Extern Run”)
OR
Accept the already present Run command and immediately begin acceleration to the commanded speed
(b1-07= “1: Accept Extrn Run”).
Setting Description
0 Reverse Enabled
1 Reverse Disabled (factory default)
2 Exchange Phase
3 ExchgPhs, Rev Dsbl
Setting Description
0 Cycle Extern Run (factory default)
1 Accept Extrn Run
Run Command
Output Frequency
Drive Output
Voltage
Interrupted
OFF
ON
Timer Value T
(C1-02)
100 %
0 %
Op
er
at
ion
W
ai
t T
im
e
(T
)
Deceleration
Time (C1-02)
Minimum
Baseblock
Time (L2-03)
Minimum
Output
Frequency
100% (Maximum
Output
Frequency)
Output Frequency at Stop Command Input
Ignored
Run Command
Timer Value T
(OPEN)
(CLOSED)
c05-a.fm Page 8 Thursday, July 24, 2008 2:31 PM