Emerson unidrive sp User Manual

Menu 2
Parameter
structure
Keypad and
display
Parameter
x.00
Parameter
description format
Advanced parameter
descriptions
Macros
Serial comms
protocol
Electronic
nameplate
Performance RFC mode
48 Unidrive SP Advanced User Guide
www.controltechniques.com Issue Number: 10
Closed-loop vector and servo
If an acceleration rate is selected where the parameter is set to 0.000 the acceleration ramp is disabled and the reference changes instantly to its new
value during acceleration.
Open-loop
If either an acceleration or deceleration rate is selected where the parameter is set to 0.0 in open-loop mode, the ramps are disabled (for both
acceleration and deceleration). This disables the voltage controller, used for standard ramp and mains loss ride through, and the frequency based
current limits.
The jog acceleration rate is only used when accelerating towards the jog reference and when changing the jog reference.
The acceleration rate is selected as follows:
0 Ramp rate selection by terminal input
1 - 8 Ramp rate defined by parameter number, i.e. 1 = Pr 2.21, 2 = Pr 2.22, etc.
9 Ramp rate selection by Pr 1.50
2.11 Acceleration rate 1
2.12 Acceleration rate 2
2.13 Acceleration rate 3
2.14 Acceleration rate 4
2.15 Acceleration rate 5
2.16 Acceleration rate 6
2.17 Acceleration rate 7
2.18 Acceleration rate 8
Drive modes Open-loop, Closed-loop vector, Servo
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1111
Closed-loop vector and Servo DP = 3
Range
Open-loop
Closed-loop vector, Servo
0.0 to 3,200.0 s/100Hz
0.000 to 3,200.000 s/1000rpm
Default
Open-loop
Closed-loop vector
Servo
5.0
2.000
0.200
Second motor
parameter
Open-loop, Closed-loop vector, Servo Pr 21.04 for Pr 2.11 only
Update rate 4ms read
2.19 Jog acceleration rate
Drive modes Open-loop, Closed-loop vector, Servo
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1111
Closed-loop vector and Servo DP = 3
Range
Open-loop
Closed-loop vector and Servo
0.0 to 3200.0 s/100Hz
0.000 to 3200.000 s/1000rpm
Default
Open-loop
Closed-loop vector, Servo
0.2
0.000
Update rate Background read
2.20 Deceleration rate selector
Drive modes Open-loop, Closed-loop vector, Servo
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
111
Range Open-loop, Closed-loop vector, Servo 0 to 9
Default Open-loop, Closed-loop vector, Servo 0
Update rate 4ms read

Emerson unidrive sp Specifications

General

Brand	Emerson
Model	unidrive sp
Category	Controller
Language	English