B6: Dwell Function; B8: Energy Saving - Omron V1000 User Manual

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b6: Dwell Function

The reference hold or Dwell function is used to temporarily hold the output frequency at a set reference value, for a set
time, and then continue to ramp up or stop.
The Dwell at start function can be used when driving a permanent magnet motor in V/f Control, or a motor with a heavy
starting load. The pause in acceleration allows the PM motor rotor to align with the stator field of the motor, thus reducing
the starting current.
Dwell works as shown in the figure below.
Note: Using the Dwell function requires that the stopping method for the drive be set to "Ramp to Stop" (b1-03 = 0).
n b6-01/b6-02: Dwell Reference/Time at Start
b6-01 sets the frequency that is kept for the time set in b6-02 during acceleration.
No.
b6-01
b6-02
n b6-03/b6-04: Dwell Reference/Time at Stop
Parameter b6-03 sets the frequency that is kept for the time set in b6-04 during deceleration.
No.
b6-03
b6-04
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b8: Energy Saving

The Energy Saving feature improves overall system operating efficiency by operating the motor at its most efficient level.
This is accomplished by continuously monitoring the motor load and controlling the motor so that it always operates near
its rated slip frequency.
Note: Energy Saving is mainly designed for applications with variable torque (Normal Duty) but is not appropriate for applications where the
load may suddenly increase.
n b8-01: Energy Saving Control Selection
Enables or disables the Energy Saving function.
No.
b8-01
Setting 0: Disabled
Setting 1: Enabled
n b8-02: Energy Saving Gain (OLV only)
Sets the gain that is used to for magnetizing current reduction during Energy Saving. A higher value results in lower
magnetization of the motor and thereby less energy consumption. However, if b8-02 is too high the motor might stall.
No.
b8-02
n b8-03: Energy Saving Control Filter Time Constant (OLV only)
Parameter b8-03 sets the response time for Energy Saving. Although lowering this value allows for a quicker response,
instability may result if it is too low.
SIEP C710606 20 OYMC AC Drive - V1000 User Manual
OFF
Run Command
Output Frequency
b6-02
Figure 5.22 Dwell Function at Start and Stop
Name
Dwell Reference at Start
Dwell Time at Start
Name
Dwell Reference at Stop
Dwell Time at Stop
Parameter Name
Energy Saving Control Selection
Name
Energy Saving Gain
ON OFF
b6-01
b6-03
b6-04
Setting Range
0.0 to 400.0 Hz
0.0 to 10.0 s
Setting Range
0.0 to 400.0 Hz
0.0 to 10.0 s
Setting Range
Setting Range
0.00 to 10.0
5.2 b: Application
Default
0.0 Hz
0.0 s
Default
0.0 Hz
0.0 s
Default
0 or 1 0
Default
0.7
5
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