Menu 3
Closed-loop
Parameter
structure
Keypad and
display
Parameter
x.00
Parameter
description format
Advanced parameter
descriptions
Macros
Serial comms
protocol
Electronic
nameplate
Performance RFC mode
60
Unidrive SP Advanced User Guide
www.controltechniques.com Issue Number: 10
If the speed feedback (Pr
3.02
) exceeds this level in either direction an overspeed trip is produced. If this parameter is set to zero the overspeed
threshold is automatically set to 1.2 x SPEED_FREQ_MAX.
In servo mode the motor speed and the motor voltage can be monitored to detect that the motor is accelerating in an uncontrolled way because the
motor phasing angle has not been set up correctly in Pr
(Pr
21.20
if motor map 2 is selected). If the overspeed threshold is set to zero phasing
angle error monitoring is enabled. If the overspeed threshold is set to any other value this feature is disabled.
3.08
Overspeed threshold
Drive modes
Closed-loop vector, Servo
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV
PT
US RW BU PS
1
1
1
Range
Closed-loop vector, Servo
0 to 40,0000 rpm
Default
Closed-loop vector, Servo
0
Update rate
Background read
3.09
Absolute “at speed” detect
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
1
1
1
Default
Closed-loop vector, Servo
0
Update rate
Background read
3.10
Speed controller proportional gain (Kp1)
3.13
Speed controller proportional gain (Kp2)
Drive modes
Closed-loop vector, Servo
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV
PT
US RW BU PS
4
1
1
1
Range
Closed-loop vector, Servo
0.0000 to 6.5535 (1/ rad s
-1
)
Default
Closed-loop vector
Servo
0.0300
0.0100
Second motor
parameter
Closed-loop vector, Servo
Pr
21.17
Update rate
Background read
3.11
Speed controller integral gain (Ki1)
3.14
Speed controller integral gain (Ki2)
Drive modes
Closed-loop vector, Servo
Coding
Bit
SP
FI
DE Txt VM DP ND RA NC NV
PT
US RW BU PS
2
1
1
1
Range
Closed-loop vector, Servo
0.00 to 655.35 s/rad s
-1
Default
Closed-loop vector
Servo
0.10
1.00
Second motor
parameter
Closed-loop vector, Servo
Pr
21.18
Update rate
Background read
Summary of Contents for unidrive sp
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