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Basic Configuration
05/2008
Danaher Motion
76
S200-VTS Product Manual
7.4.4
SFD Position Mode
The base S200 can drive a motor in Position Mode using SFD Feedback. The source of the
command can either be Step and Direction, or A,B differential quadrature signals. The drive
needs to be configured using the S200Tools utility. The configuration parameters should be
saved to non-volatile memory (click the NV Save button) to allow the configuration to be
recalled on power up.
To configure the drive for SFD feedback set the following parameters:
Parameter Value
CommMode
SetupS2-2 (Default value) with switch S2-2 set to the
down position labeled,
S
on the drive.
or
SFD
CommOff
0 Degrees – for AKM motor series. Check with your sales
representative for the correct commutation offset angle for
other motor series.
OpMode
Position
PosCmdSrc
Selects the source of the command, either Step-Dir or
AquadB.
GearIn
GearOut
Sets the distance the shaft moves for each input position
command pulse/count.
KPP
Sets the proportional gain of the position loop.
KVFF
Sets the feed forward gain of the derivative or the position
command to the internal velocity command.
SelSFDParam
SFD (Default value) – recommended setting
This setting will automatically set the motor parameters.
KVP
will be set for 75 Hz nominal velocity loop bandwidth
with an unloaded motor.
To change
KVP
or other motor parameters refer to
Configuring with SFD Feedback Motor Parameters.
KVI
Sets the velocity loop break out frequency from integral to
proportional compensation.
ARF0
ARF1
Single pole filters in the velocity loop forward path. Set to
accommodate the effects of mechanical resonance.
The following are optional parameters that can be set.
Parameter Function
EncOut
Sets the line count of the emulated encoder output.
NOTE
: Emulated Encoder Outputs are not available when
the PosSrcCmd is set to AQuadB.
EnInhibitCW
EnInhibitCCW
Enables the hardware over travel limits