Parameter Functions - Invertek Drives OPTIDRIVE E3 User Manual

6.3. Parameter Functions

The following sections highlight the parameters relevant to certain functions in the drive firmware. Parameters are grouped according
to the function.
6.3.1. Basic Functions
Motor Nameplate Settings (relevant parameters)
Par. Description
P-07 Motor Rated Voltage / Back EMF at rated speed (PM / BLDC)
For Induction Motors, this parameter should be set to the rated (nameplate) voltage of the motor (Volts).
For Permanent Magnet or Brushless DC Motors, it should be set to the Back EMF at rated speed.
P-08 Motor Rated Current
This parameter should be set to the rated (nameplate) current of the motor.
P-09 Motor Rated Frequency
This parameter should be set to the rated (nameplate) frequency of the motor.
When commissioning the drive, it is necessary to enter certain information about the motor into the drive to ensure the drive is optimised
to control the connected motor and additionally to prevent damage to the motor.
For standard induction motors, the parameters are listed below.
For alternative motor types, refer to the later relevant sections for each motor type.
Working in RPM (relevant parameters)
Par. Description
P-10 Motor Rated Speed
This parameter can optionally be set to the rated (nameplate) RPM of the motor. When set to the default value of zero, all speed related
parameters are displayed in Hz and the slip compensation (where motor speed is maintained at a constant value regardless of applied
load) for the motor is disabled. Entering the value from the motor nameplate enables the slip compensation function, and the Optidrive
display will now show motor speed in RPM. All speed related parameters, such as Minimum and Maximum Speed, Preset Speeds etc.
will also be displayed in RPM.
NOTE If P-09 value is changed, P-10 value is reset to 0.
Optidrive E3 normally uses frequency for all speed related parameters, e.g. Minimum and Maximum Output Frequency. It is also
possible to work directly in RPM, by setting the above parameter to the relevant rated speed from the connected motor nameplate.
When set to the default value of zero, all speed related parameters are displayed in Hz, and slip compensation for the motor is disabled.
Entering the value from the motor nameplate enables the slip compensation function, and the Optidrive display will also now show motor
speed in RPM. All speed related parameters, such as Minimum and Maximum Speed, Preset Speeds etc. will also be displayed in RPM.
NOTE If P-09 value is changed, P-10 value is reset to 0.
Low Frequency Torque Boost (relevant parameters)
Par. Description
P-11 Low Frequency Torque Boost
6
Low frequency torque can be improved by increasing this parameter. Excessive boost levels may however result in high motor current
and increased risk of tripping on Over Current or Motor Overload (refer to section 1 1. 1 . Fault Code Messages).
This parameter operates in conjunction with P-51 (Motor Control Mode) as follows:
P-51
0
1
2, 3, 4
For IM motors, when P-51 = 0 or 1, a suitable setting can usually be found by operating the motor under very low or no load conditions at
approximately 5Hz, and adjusting P-1 1 until the motor current is approximately the magnetising current (if known) or in the range shown below.
Frame Size 1: 60 – 80% of motor rated current.
Frame Size 2: 50 – 60% of motor rated current.
Frame Size 3: 40 – 50% of motor rated current.
Frame Size 4: 35 – 45% of motor rated current.
22 | Optidrive ODE-3 IP66 Outdoor Rated User Guide | Version 1.00
P-11
0 Boost is automatically calculated according to autotune data.
>0 Voltage boost = P-1 1 x P-07.This voltage is applied at 0.0Hz, and linearly reduced until P-09 / 2.
All Voltage boost = P-1 1 x P-07.This voltage is applied at 0.0Hz, and linearly reduced until P-09 / 2.
All Boost current level = 4*P-1 1*P-08.
Minimum Maximum Default
0 250 / 500 230 / 400
Drive Rating Dependent
10 500
Minimum Maximum Default
0 30000
Minimum Maximum Default
0.0 Drive Dependent
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Units
V
A
50 (60) Hz
Units
0 RPM
Units
%