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Performance
RFC mode
50
Unidrive SP Advanced User Guide
www.controltechniques.com Issue Number: 10
These bits are provided for control by logic input terminals for external ramp selection (see Pr
).
The motor and load inertia (Pr
3.18
), motor torque per amp (Pr
5.32
) and the rate of change of the ramp output (Pr
2.01
) are used to produce a torque
feed forward value that should accelerate or decelerate the load at the required rate. This value can be used as a feed forward term that is added to
the speed controller output if Pr
4.22
is set to one. Pr
2.38
shows the torque value as a percentage of rated active current.
2.32
Acceleration select bit 0
2.33
Acceleration select bit 1
2.34
Acceleration select bit 2
2.35
Deceleration select bit 0
2.36
Deceleration select bit 1
2.37
Deceleration select bit 2
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
Update rate
4ms read
2.38
Inertia compensation torque
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
1
Range
Closed-loop vector, Servo
±1,000.0 %
Update rate
4ms write
Summary of Contents for unidrive sp
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