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Advanced Configuration
05/2008
Danaher Motion
84
S200-VTS Product Manual
8.5.3
Read/Write NV Parameters
ARF0 1.518 – 96382 Hz
ARF1 1.518 – 96382 Hz
ARF0 and ARF1 set the break frequency in Hz for the two single-pole anti-resonance low pass
filters in the forward path of the velocity loop. They are used to help accommodate mechanical
resonance in the system introduced by the load connected to the motor. See the Base Drive
Torque/Velocity Control Block Diagram for more information.
AuxFBDivisor 1 to 2,147,483,647
(Option Card Only)
Supported over SynqNet.
This parameter is the divisor used to scale the raw incremental encoder counts or the Sin-Cos
encoder interpolated counts from the Aux Feedback interface to the Aux position word. If the
Aux Feedback device is used only for controller feedback then this parameter may be set to
any value convenient for the application. If the Aux Feedback device is used to commutate the
motor then it must be set to a specific value. For rotary motor commutation, this scaling
converts the Aux Feedback position word to a word with 24 bits per revolution. For linear motor
commutation, it converts to 24 bits per motor magnetic pole pitch distance. The table below lists
a number of commonly desired settings for AuxFBDivisor.
Incremental (A quad B) encoder
No motor commutation, 1 encoder
quadrature count = 1 Aux Feedback count:
AuxFBDivisor = 2
24
= 16,777,216
Commutating a rotary motor or 24 bits per
revolution:
AuxFBDivisor = number of quadrature
counts per mechanical revolution
Commutating a linear motor or 24 bits per
magnetic pole pitch:
AuxFBDivisor = number of quadrature
counts per magnetic pole pitch
1 Vp-p Sin-Cos
No motor commutation, 1 interpolation lsb =
1 Aux Feedback count or 65536 counts/Sin-
Cos cyle:
AuxFBDivisor = 2
8
= 256
Commutating a rotary motor or 24 bits per
revolution:
AuxFBDivisor = number of Sin-Cos cycles
per mechanical revolution
Commutating a linear motor or 24 bits per
magnetic pole pitch:
AuxFBDivisor = number of Sin-Cos cycles
per magnetic pole pitch
AuxFBType Type
(Option Card Only)
Supported over SynqNet.
This parameter selects the type of feedback wired to the AuxFB connector. It is a combination
of the following single bit parameters:
AFBHallDis, AFBDivisorSrc, AFBEnDatEnb, and AFBFBSrc.
The following table defines the state of these parameters for each supported feedback device.
Type AFBHallDis AFBEnDatEnb
AFBDivisorSrc
AFBFBSrc
Incremental A Quad B
Disable
Disable AuxFBDivisor AQB
Incremental A Quad B
with Halls
Enable Disable AuxFBDivisor AQB
1 Vp-p Sin-Cos
Incremental
Disable Disable AuxFBDivisor SCD
1 Vp-p Sin-Cos Inc. with
Halls
Enable Disable AuxFBDivisor SCD
EnDat 2.1
Disable
Enable
AuxPPR
SCD
EnDat 2.1 Linear
Disable
Enable
AuxFBDivisor
SCD