4
8902/E1 Sin/Cos Speed Feedback Option
Initial Set-up
Configuring the 890 Drive
Use the DSE 890 Configuration Tool to configure the ENCODER function block, as detailed
below.
The DSE 890 Configuration Tool is Parker SSD Drives’ Windows-based block programming
software and is supplied with each drive.
ENCODER Function Block
SETUP::MOTOR CONTROL::ENCODER
This block allows Speed Feedback to be measured using a Sin/Cos encoder.
Parameter Descriptions
PULSE ENC VOLTS
PREF: 71.01
Default: 10.0 V
Range: 5.0 to 20.0 V
Set this approximately to the supply voltage required by the pulse encoder.
SINCOS ENC VOLTS
PREF: 71.22
Default: 5.0 V
Range: See below
Set the supply volts required by the sin/cos encoder.
Enumerated Value
: SinCos Encoder Volts
0 : 5V
1 : 10V
ENCODER LINES
PREF: 71.02
Default: 2048
Range: 250 to 262413
Set the number of lines to match the type of encoder being used. Incorrect setting of this
parameter will result in an erroneous speed measurement.
ENCODER INVERT
PREF: 71.03
Default: FALSE
Range: FALSE/TRUE
Used to match the encoder direction to the motor direction. When TRUE, changes the sign of
the measured speed and the direction of the position count. Setting the encoder direction
should be done as part of the Autotune when running in Closed-loop Vector Mode.
ENCODER TYPE
PREF: 71.04
Default: 0
Range: See below
This parameter defines the type of encoder being used.
Enumerated Value : Type
0 : QUADRATURE
single-ended pulse encoder
1 : CLOCK/DIR
single-ended pulse encoder
2 : CLOCK
single-ended pulse encoder
3 : QUADRATURE DIFF
differential pulse encoder
4 : CLOCK/DIR DIFF
differential pulse encoder
5 : CLOCK DIFF
differential pulse encoder
6 : SINCOS INC
sin/cos encoder
7 : ABS ENDAT ST
single turn endat absolute encoder
8 : ABS ENDAT MT
multi-turn endat absolute encoder
LOAD G'BOX RATIO
PREF: 71.05
Default: 1
Range: 1 to 64
This parameter can be used to configure absolute position control applications. It must be an
integer gear box ratio, e.g. 64:1. If there is a gearbox between the motor and the load, set the
gearbox ratio via this parameter. “Load position” i.e. the position of the load on the other
side of the gearbox, will then be calculated.
Ignore the
setting for this
parameter
