Parameter Descriptions - Invertek Compact 2 Series User Manual

7.4. Parameter Descriptions

7.4.1. Basic Parameters
Par. Description
P-01 Maximum Frequency / Speed Limit
Maximum output frequency or motor speed limit set in Hz or RPM.
The maximum possible value is limited by the lower of the following :-
- 500.0Hz maximum limit
- If P-10 >0, (500 x 120) / Motor Poles RPM
- P-17 / 16 Hz
Note
When P-10>0, slip compensation is automatically enabled, and P-01 is corrected to the synchronous speed of the motor.
P-02 Minimum Frequency / Speed Limit
Minimum speed limit – Hz or RPM. If P-10 >0, the value entered / displayed is in RPM
P-03 Acceleration Ramp Time
Acceleration ramp time from zero Hz / RPM to base frequency (P-09) in seconds.
P-04 Deceleration Ramp Time
Deceleration ramp time from base frequency (P-09) to standstill in seconds. When set to 0.0, the value of P-24 is used.
P-05 Index 1: Stopping Mode
Setting Description
0 Ramp to Stop
1 Coast to Stop
2 AC Flux Braking
Index 2: Mains Loss Reaction
Setting Description
0 Mains Loss Ride Through. Continue running by reducing the speed of the load to recover energy.
1 Coast to Stop
2 Fast Ramp To Stop using the P-24 decel ramp
P-06 Energy Optimisation
Enables / Disables the Energy Optimisation function as follows.
Motor Energy Optimisation: Reduces energy losses in the motor under part load conditions by reducing motor flux. This function
should not be used in applications which have large sudden load step changes, or for PI control applications, as it may cause
instability in the control or over current trip.
Optidrive Energy Optimiser: Reduces the energy losses in the drive at higher output frequencies by reducing switching losses. This
may lead to vibration or instability in the motor under light load conditions.
Setting
0
1
3
4
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. This parameter cannot be adjusted greater than the
continuous current rating of the drive.
When the motor nameplate value is entered, thermal overload protection is enabled, as described in section 11.7.4
P-09 Motor Rated Frequency
This parameter should be set to the rated (nameplate) frequency of the motor
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 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 estimated 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 Compact-2 Engineering Guide Issue 07.docx
Motor Energy Optimiser
Disabled
Enabled
Disabled
Enabled
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Minimum Maximum Default
P-02 500.0 50.0 (60.0)
0.0 P-01
0.0 6000.0
0.0 6000.0
0 2
0 2
0 1
Drive Energy Optimiser
Disabled
Disabled
Enabled
Enabled
0 250 / 500 230 / 400
Drive Rating Dependent
10 500 50 (60)
0 30000
Units
Hz / RPM
0.0 Hz / RPM
5.0 s
5.0 s
0 -
0 -
0 -
V
A
Hz
0 RPM
19