Emerson unidrive sp User Manual

Menu 21
Parameter
structure
Keypad and
display
Parameter
x.00
Parameter
description format
Advanced parameter
descriptions
Macros
Serial comms
protocol
Electronic
nameplate
Performance RFC mode
358 Unidrive SP Advanced User Guide
www.controltechniques.com Issue Number: 10
Pr 21.03 defines how the value of Pr 1.49 is derived as follows:
*The bit Pr 1.41 to Pr 1.44 can be controlled to force the value of Pr 1.49:
all bits equal to zero gives 1,
Pr 1.41 = 1 then Pr 1.49 = 2
Pr 1.42 = 1 then Pr 1.49 = 3
Pr 1.43 = 1 then Pr 1.49 = 4
Pr 1.44 = 1 then Pr 1.49 = 5
The bit parameters with lower numbers have priority over those with higher numbers.
Pr 1.49 and Pr 1.50 then define the reference as follows:
Keypad reference
If Keypad reference is selected the drive sequencer is controlled directly by the keypad keys and the keypad reference parameter (Pr 1.17) is
selected. The sequencing bits, Pr 6.30 to Pr 6.34, have no effect and jog is disabled.
Reference selected by timer
The presets are selected automatically in turn. Pr 1.16 defines the time between each change.
Value of Pr 21.03 Display String Pr 1.49
0 A1.A2 *Selected by terminal input
1A1.Pr1
2A2.Pr2
3Pr3
4Pad4
5Prc5
Pr 1.49 Pr 1.50 Reference
1 1 Analog reference 1
1 >1 Preset defined by Pr 1.50
2 1 Analog reference 2
2 >1 Preset defined by Pr 1.50
3 x Preset defined by Pr 1.50
4 x Keypad reference
5 x Precision reference
21.04 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, Servo DP = 3
Range
Open-loop
Closed-loop vector, Servo
0.0 to 3200.0 s/100Hz
0.000 to 3200.000 s/1000rpm
Default
Open-loop
Closed-loop vector
Servo
5.0
2.000
0.200
Normal
parameter
Open-loop, Closed-loop vector, Servo Pr 2.11
Update rate Background read

Emerson unidrive sp Specifications

General

Brand	Emerson
Model	unidrive sp
Category	Controller
Language	English