Parameter
Keypad and
Parameter
structure
display
x.00
1.10
Bipolar reference enable
Drive modes
Open-loop, Closed-loop vector, Servo
Bit
SP
Coding
1
Default
Open-loop, Closed-loop vector, Servo
Update rate
4ms read
See Pr 1.08 on page 27.
1.11
Reference enabled indicator
1.12
Reverse selected indicator
1.13
Jog selected indicator
Drive modes
Open-loop, Closed-loop vector, Servo
Bit
SP
Coding
1
Update rate
4ms read
These parameters are controlled by the drive sequencer as defined in Menu 6. They select the appropriate reference as commanded by the drive
logic.
1.14
Reference selector
Drive modes
Open-loop, Closed-loop vector, Servo
Bit
SP
Coding
Range
Open-loop, Closed-loop vector, Servo
Default
Open-loop, Closed-loop vector, Servo
Second motor
Open-loop, Closed-loop vector, Servo
parameter
Update rate
4ms read
Pr 1.14 defines how the value of Pr 1.49 is derived as follows:
Value of Pr 1.14
0
A1.A2 (Analog ref 1. Analog ref 2)
1
A1.Pr (Analog ref 1. Preset speeds)
2
A2.Pr (Analog ref 2. Preset speeds)
3
Pr (Preset speeds)
4
Pad (Keypad reference)
5
Prc (Precision reference)
*Pr 1.41 to Pr 1.44 can be controlled by digital inputs 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:
Pr 1.49
Pr 1.50
1
1
Analog reference 1 (Pr 1.36)
1
>1
Preset defined by Pr 1.50 (Pr 1.21 to Pr 1.28)
2
1
Analog reference 2 (Pr 1.37)
2
>1
Preset defined by Pr 1.50 (Pr 1.21 to Pr 1.28)
3
x**
Preset defined by Pr 1.50 (Pr 1.21 to Pr 1.28)
4
x**
Keypad reference (Pr 1.17)
5
x**
Precision reference (Pr 1.18 and Pr 1.19)
** x = any value
Unidrive SP Advanced User Guide
Issue Number: 7
Parameter
Advanced parameter
description format
descriptions
FI
DE
Txt VM DP
ND
0
FI
DE
Txt VM DP
ND
FI
DE
Txt VM DP
ND
1
0 to 5
0 (A1.A2)
Pr 21.03
Display String
*Selected by terminal input
Reference
www.controltechniques.com
http://nicontrols.com
Serial comms
Macros
protocol
RA
NC
NV
PT
US RW BU
1
1
RA
NC
NV
PT
US RW BU
1
1
RA
NC
NV
PT
US RW BU
1
1
Pr 1.49
1
2
3
4
5
Electronic
Feature look-
Performance
nameplate
up table
PS
PS
PS
1
Menu 1
29
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