Optidrive E3 Advanced Technical Manual Issue 05.Docx
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2.4
Alternative Parameter Functions for Single Phase Output Drives
Single phase output drives feature a number of changes in order to provide optimal operation with single phase motors. These changes are
based around two key principles:-
The Starting method for single phase motors requires the motor to be started at full speed in order to provide optimal starting torque. The
starting boost parameters allow adjustment of this function to provide optimal motor starting.
It is not possible to have reverse operation with a single phase motors, thereby all reverse functions are disabled in the drive firmware.
2.4.1
Single Phase Output Drives – Alternative Parameters
Par.
Description
Minimum
Maximum
Default
Units
P-05
Stopping Mode / Mains Loss Response
0
2
0
-
Selects the stopping mode of the drive, and the behaviour in response to a loss of mains power supply during operation.
Setting
On Disable
On Mains Loss
0
Ramp to Stop (P-04)
Ride Through (Recover energy from load to maintain operation)
1
Coast
Coast
2
Ramp to Stop (P-04)
Fast Ramp to Stop (P-24), Coast if P-24 = 0
AC Flux braking is not possible with single phase motors.
P-06
Reserved
-
-
-
-
Energy optimiser feature is not suitable for Single Phase motors
P-11
Start Boost Voltage
0.0
100.0
3.0
%
This parameter sets the initial voltage applied to the motor following a start command. The inverter applied the voltage set in this
parameter at the frequency set in P-32 initially, and then ramps to the motor rated voltage set in P-09 over the time period set in P-
33. Excessive voltage boost levels may result in increased motor current and temperature, and can result in the drive tripping during
starting.
P-13
Reserved
-
-
-
-
Application Macro selection is not supported on single phase output drives.
P-15
Digital Input Function Select
0
17
0
-
This parameter has the same function as three phase output drives, however note that for single phase output drives, all reverse
functions are disabled, and the inputs assigned have no function.
P-20
Preset Frequency / Speed 1
0.0
P-01
5.0
Hz / RPM
P-21
Preset Frequency / Speed 2
0.0
P-01
25.0
Hz / RPM
P-22
Preset Frequency / Speed 3
0.0
P-01
40.0
Hz / RPM
P-23
Preset Frequency / Speed 4
0.0
P-01
P-09
Hz / RPM
These parameters have alternative default settings compared to three phase drives, and are uni-directional only.
P-32
Starting Boost Frequency
0.0
P-09
P-09
Hz
Sets the frequency used during the starting boost phase of operation.
P-33
Boost Period Duration
0.0
150
5.0
s
Time for which the start-up boost period is applied. During this period, the output frequency is set to P-32 and the voltage
increases linearly from P-11 to P-07. Setting P-33 to zero disables boost.
P-51
To
P-59
Reserved
-
-
-
-
These parameters are not present in single phase output drives.
