Basic Programming 5 - 6
The level of DC Injection current is set by parameter b2-02. The length of time that DC current is injected into the motor
windings is determined by the set value in
b2-04 and the output frequency at the time the run command is removed.
Fig 5.6 DC Injection Braking (DB) Stop
Note: If an overcurrent (OC) fault occurs during DcInj to Stop, lengthen the Minimum Baseblock Time (L2-03).
3: Coast w/Timer: When the run command is removed, the Drive will turn off its output transistors and the motor will coast to
a stop. If a run command is input before time T (value of C1-02) expires, the Drive will not run and the run command will
need to be cycled before operation can occur
.
The time T (value of C1-02) is determined by the output frequency when the
run command is removed and the active deceleration time.
Fig 5.7 Coast to Stop with Timer
Reverse Operation Selection
b1-04 Reverse
Operation
For some applications reverse motor rotation is not applicable and may even cause problems (e.g., fans, 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 “0”. When b1-04=0, reverse operation is allowed and no exchanging of
output phasing occurs.
ON
OFF
Run Command
Output Frequency
Drive Output Voltage Interrupted
DC Injection Brake
DC Injection Brake Time
Minimum Baseblock Time
(L2-03)
b2-04 x 10
b2-04
10%
100% (Maximum
Output Frequency)
Output Frequency at Stop Command Input
ON
OFF
Run Command
Output Frequency
Drive Output
Voltage
Interrupted
OFF
ON
ON
Operation Wait Time (T)
O
p
er
at
io
n Wa
it
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
Содержание E7 Drive
Страница 1: ...E7 Drive User Manual Model E7U Document Number TM E7 01...
Страница 74: ...Start Up 4 10 Notes...
Страница 132: ...Maintenance 7 8 Notes...
Страница 162: ...Parameter List A 30 Notes...
Страница 166: ...Capacity Related Parameters B 4 Notes...
Страница 184: ...Communications D 14 Notes...
Страница 192: ...Spare Parts F 4 Notes...