Danaher Motion
05/2008
Basic Configuration
S200-VTS Product Manual
73
7.4
Configuring with SFD Feedback
7.4.1
SFD Motor Parameters
When the drive is powered up and connected to a motor with SFD feedback, the drive will
automatically configure itself for the attached motor by loading the default motor parameters.
The default motor parameters provide robust performance of current and velocity loops with
optimized settings to protect the motor from thermal overload. For most applications, these
default motor parameter settings are recommended because they provide excellent
performance and require no additional tuning. To use the default motor parameters verify that
SelSFDParam
is set to
SFD
, which is the factory default setting.
If the response time and/or stability of the system needs to be further optimized for the specific
application, the motor parameters will need to be modified. To modify the motor parameters, set
SelSFDParam
to
Drive
. This setting unlocks the motor parameters and allows the parameters
to be individually set with the S200Tools utility. The modified motor parameters will need to be
saved to the drive’s non-volatile memory (click the NV Save button) to ensure that the changed
settings are loaded when the drive is powered up.
CAUTION
Incorrect motor parameter settings can cause damage to the motor and/or drive.
The motor parameters need to be set correctly to match the drive to the motor. The
correct parameter settings ensure:
The drive is matched to the motor inductance and pole count.
The current and velocity loops are stable with good bandwidth.
The motor is protected from thermal overload.
NOTE
A good starting point to setting the motor parameters is to obtain the default motor
parameters and then edit only the parameters that need to be changed
Using the S200 Tools, set
SelSFDParam
to SFD, this loads the default motor
parameters.
Next, set
SelSFDParam
to DRIVE. This will allow the motor parameters to be
edited. Change only the parameters you are looking to optimize.
When finished setting the motor parameters (and any other parameters),
save the parameters to NV Memory by clicking the NV Save button.
The following drive setup parameters controlled by
SelSFDParam
:
Parameter Value
KVP
Velocity loop proportional gain.
KIP
Current loop proportional gain.
DPoles
Drive pole pairs.
I2TF0
Speed of response for motor transient thermal protection.
I2TTrip
Fault trip level for motor transient thermal protection.
IlmtPlus,
IlmtMinus
Clamps drive maximum Iout based on motor Ipeak.