Emerson unidrive sp User Manual

Menu 1
Parameter
structure
Keypad and
display
Parameter
x.00
Parameter
description format
Advanced parameter
descriptions
Macros
Serial comms
protocol
Electronic
nameplate
Performance RFC mode
34 Unidrive SP Advanced User Guide
www.controltechniques.com Issue Number: 10
Analog input scaling
The following diagrams show the scaling applied when analog inputs are used to define the reference and are routed via Pr 1.36 or Pr 1.37.
Reference limits
With reference to the block diagram for Menu 1 (Figure 5-1 on page 30) the following table shows the limits applied to the reference by various blocks
in the reference system. It should be noted that the minimum limit in the main reference limits block changes when either the jog reference or velocity
feedforward references are active. When one of these is active: if Pr 1.08 = 0 the minimum = -Pr 1.06 [-Pr 21.01 for motor map2], if Pr 1.08 = 1 the
minimum = -Pr 1.07 [-Pr 21.02 for motor map 2].
When this parameter is 0 the reference is given by
Pr 1.01 = selected reference x (100 + Pr 1.38) / 100
and when this parameter is 1 the reference is given by
Pr 1.01 = selected reference + Pr 1.04
Minimum Maximum
Keypad control reference (Pr 1.17)
Unipolar mode: Pr 1.07, or 0 if Pr 1.07 < 0
Bipolar mode: -SPEED_FREQ_MAX
SPEED_FREQ_MAX
Bipolar/unipolar selector
Unipolar mode: Pr 1.07, or 0 if Pr 1.07 < 0
Bipolar mode: no limit applied
No maximum limit applied
Main reference limits
Neg minimum ref disabled: -Pr 1.06
Neg minimum ref enabled: Pr 1.07
Pr 1.06
1.09 Reference offset select
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
Default Open-loop, Closed-loop vector, Servo 0
Update rate
Background read when precision reference is active
4ms read otherwise
Pr 1.07
Pr =0 ( 1.10 unipolar mode)
Pr =0 (
1.08
neg min ref disabled)
-100% 100%
SPEED_FREQ_MAX
SPEED_FREQ_MAX
-100% 100%
-SPEED_FREQ_MAX
SPEED_FREQ_MAX
-100% 100%
-SPEED_FREQ_MAX
Pr =1 (bipolar mode) 1.10
Pr =0 ( 1.08 neg min ref disabled)
-100% 100%
SPEED_FREQ_MAX
Pr =0 ( 1.10 unipolar mode)
Pr =1 (
1.08 neg min ref enabled)
Pr =1 (bipolar mode)
1.10
Pr =1 ( 1.08 neg min ref enabled)

Emerson unidrive sp Specifications

General

Brand	Emerson
Model	unidrive sp
Category	Controller
Language	English