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Table 3-1b Technical Specifications of Benshaw PowerPro
™
High Performance Single AC Drive
Item
Description
Standard
functions
Input frequency
resolution
Digital setting: 0.01 Hz
Analog setting: Max. frequency x 0.025%
Control mode
Voltage/Frequency (V/F) control
Sensorless vector control (SVC)
Feedback vector control (FVC)
Startup torque
0.25 Hz/150% (SVC)
0 Hz/180% (FVC)
Speed range
1:200 (SVC)
1:1000 (FVC)
Speed stability
accuracy
±0.5% (SVC)
±0.02% (FVC)
Torque control
accuracy
±3% (FVC); ±5% for 5 Hz above (SVC)
Torque boost
Customized boost 0.1 % to 30.0 %
V/F curve
Linear V/F curve
Square V/F curve
Multi-point V/F curve
Complete V/F separation
Half V/F separation
Ramp mode
Linear ramp
Straight-line ramp
S-curve ramp
Four separate acceleration/deceleration time settings in the range
of 0.0s to 6500.0s.
DC injection
braking
Brake frequency: 0 Hz to max. frequency
Active time: 0.0s to 36.0s.
Current level: 0.0% to 100.0%.
Jog running
Frequency range: 0.00 to 50.00 Hz
Acceleration/deceleration time: 0.0s to 6500.0s
Onboard multiple
preset speeds
The system implements up to 16 speeds by using simple PLC function
or by using digital input signals.
Onboard PID
The system implements the proportional integral-derivative (PID) function
in the closed-loop control.
Automatic
voltage regulation
(AVR)
The system maintains a constant output voltage automatically when the grid
voltage changes through the permissible range.
Overvoltage and
overcurrent stall
control
The system limits the output current and voltage automatically during operation
to minimize overvoltage and overcurrent related faults.
Current limiting
function
The function helps to avoid frequent overcurrent faults.
Torque limit
and control
The system limits the torque automatically to prevent frequent overcurrent
tripping during operation.
Torque control is applied in vector control only.
Individualized
functions
Power dip
ride-through
Load feedback energy compensates for any voltage reduction, allowing the drive
to continue to operate for a short time during power dips.
Virtual I/O
Five groups of virtual digital input/outputs (DI/DO) support simple logic control.
Timing control
Time range: 0.0 to 6500.0 minutes
Dual-motor
switchover
The drive have two groups of motor parameters and can control up to two motors.
Multiple field
buses
The drive supports four field buses: Modbus, PROFIBUS-DP, CANlink and
CANopen.
Motor overheat
protection option
cards
Option: The optional input/output (I/O) extension card allows AI3 to receive a
signal from the motor temperature sensor input (PT100, PT1000) to implement
motor overheat protection.
