Version 3.07
| Optidrive P2 User Guide |
55
www.invertekdrives.com
8.2.7. Group 4 Parameter Listing
Incorrect adjustment of parameters in menu group 4 can cause unexpected behaviour of the motor and any connected
machinery. It is recommended that these parameters are only adjusted by experienced users.
Par
Parameter Name
Minimum
Maximum
Default
Units
P4-01
Motor Control Mode
0
6
2
-
Setting
Motor
Type
Primary
Control
Control
Method
Additional Information
0
IM
Speed
Vector
Speed control with Torque Limit. Torque Limit Source selected by P4-06.
1
IM
Torque
Vector
Torque Control with Speed Limit. Torque reference selected by P4-06.
Speed Limit defined by the Speed Reference.
2
IM
Speed
V/F
V/F control for simple applications with standard IM Motors.
3
AC PM
Speed
Vector
For speed control of AC PM motors with Sinusoidal back EMF.
4
AC PM
Torque
Vector
For torque control of AC PM motors with Sinusoidal back EMF.
5
BLDC
Speed
Vector
For speed control of BLDC motors with Trapezoidal back EMF.
6
Syn RM
Speed
Vector
For speed control of Synchronous Reluctance motors.
P4-02 Motor Auto-tune Enable
0
1
0
-
When set to 1, the drive immediately carries out a non-rotating autotune to measure the motor parameters for optimum control and
efficiency. Following completion of the autotune, the parameter automatically returns to 0.
P4-03 Vector Speed Controller Proportional Gain
0.1
400.0
50.0
%
Sets the proportional gain value for the speed controller when operating in Vector Speed or Vector Torque motor control modes (P4-01
= 0 or 1). Higher values provide better output frequency regulation and response. Too high a value can cause instability or even over
current trips. For applications requiring best possible performance, the value should be adjusted to suit the connected load by gradually
increasing the value and monitoring the actual output speed of the load until the required dynamic behaviour is achieved with little or
no overshoot where the output speed exceeds the setpoint.
In general, higher friction loads can tolerate higher values of proportional gain, and high inertia, low friction loads may require the gain
to be reduced.
P4-04 Vector Speed Controller Integral Time Constant
0.010
2.000
0.050
s
Sets the integral time for the speed controller. Smaller values provide a faster response in reaction to motor load changes, at the risk of
introducing instability. For best dynamic performance, the value should be adjusted to suit the connected load.
P4-05 Motor Power Factor cos Ø
0.50
0.99
-
-
When operating in Vector Speed motor control modes, this parameter must be set to the motor nameplate power factor.
P4-06 Torque Control Reference / Limit Source
0
5
0
-
0
Maximum torque
limit P4-07
The torque controller reference / limit is set in P4-07.
1
Analog Input 1
The output torque is controlled based on the signal applied to Analog Input 1, whereby 100%
input signal level will result in the drive output torque being limited by the value set in P4-07.
2
Analog Input 2
The output torque is controlled based on the signal applied to Analog Input 2, whereby 100%
input signal level will result in the drive output torque being limited by the value set in P4-07.
3
Fieldbus
The output torque is controlled based on the signal from the communications Fieldbus,
whereby 100% input signal level will result in the drive output torque being limited by the
value set in P4-07.
4
Master / Slave
The output torque is controlled based on the signal from the Invertek Master / Slave, whereby
100% input signal level will result in the drive output torque being limited by the value set in
P4-07.
5
PID output
The output torque is controlled based on the output of the PID controller, whereby 100% input
signal level will result in the drive output torque being limited by the value set in P4-07.
P4-07 Maximum Torque / Current Limit
P4-08
500
150
%
When operating in Vector Speed or Vector Torque motor control modes (P4-01 = 0 or 1), this parameter defines the maximum torque
limit or reference used by the drive in conjunction with P4-06.
When operating in V/F Mode (P4-01 = 2), this parameter defines the maximum output current the drive will provide to the motor
before reducing the output frequency to attempt to limit the current.
8
Extended P
arameters
