Emerson unidrive sp User Manual

Menu 5
Parameter
structure
Keypad and
display
Parameter
x.00
Parameter
description format
Advanced parameter
descriptions
Macros
Serial comms
protocol
Electronic
nameplate
Performance RFC mode
114 Unidrive SP Advanced User Guide
www.controltechniques.com Issue Number: 10
Voltage across the internal DC bus of the drive.
Open loop
The motor rated frequency and the motor rated voltage (Pr 5.09) are used to define the voltage to frequency characteristic applied to the motor (see
Pr 5.09 on page 115). The motor rated frequency is also used in conjunction with the motor full load rpm to calculate the rated slip for slip
compensation (see Pr 5.08 on page 115).
Closed loop vector
The motor rated frequency is used in conjunction with the motor full load rpm to calculate the rated slip of the machine for the vector control algorithm
(see Pr 5.08 on page 115). The test frequency used for the rotating auto-tune test is
2
/
3
x Pr 5.06.
The rated current should be set at the motor nameplate value for rated current. The value of this parameter is used as follows:
5.05 DC bus voltage
Drive modes Open-loop, Closed-loop vector, Servo, Regen
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
111111
Range
Open-loop, Closed-loop vector, Servo,
Regen
0 to +DC_VOLTAGE_MAX V
Update rate Background write
5.06 Rated frequency
Drive modes Open-loop, Closed-loop vector
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1111
Range
Open-loop
Closed-loop vector
0 to 3000.0 Hz
0 to 1250.0 Hz
Default Open-loop, Closed-loop vector EUR: 50.0 Hz, USA: 60.0 Hz
Second motor
parameter
Open-loop, Closed-loop vector Pr 21.06
Update rate Background read
5.07 Motor rated current (Regen mode: Regen unit rated current)
Drive modes Open-loop, Closed-loop vector, Servo, Regen
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
12 1 111
Range Open-loop, Closed-loop, Servo, Regen 0 to RATED_CURRENT_MAX A
Default
Open-loop, Closed-loop vector, Servo,
Regen
Maximum heavy duty current (i.e. the value of
Pr 11.32)
Second motor
parameter
Open-loop, Closed-loop vector, Servo,
Regen
Pr 21.07
Update rate Background read
Open-loop
Current limits
Motor thermal protection
Vector mode voltage control
Slip compensation
Dynamic V to F control
Closed-loop vector
Current limits
Motor thermal protection
Vector control algorithm
Servo
Current limits
Motor thermal protection
Regen Thermal protection

Emerson unidrive sp Specifications

General

Brand	Emerson
Model	unidrive sp
Category	Controller
Language	English