Ab Encoders - Omron XTRADRIVE User Manual

XtraDrive User Manual

5.8. AB Encoders

The XtraDrive supports both square wave (A quad B) and serial (Yaskawa's
standard) encoder types. Yaskawa serial encoders are automatically detected
by the XtraDrive and require no additional settings (please refer to chapter 5.7
for detailed information). In applications where standard A quad B encoders
are used, certain parameters related to the motor and characteristics must be
set manually. The following parameters should be set according to the
specific encoder manually. Please note that these parameters become active
only after restarting the driver.
Note: There are some parameters related to the motor electro-mechanical
characteristics that cannot be set by the user. Contact the manufacturer in
order to get a setup file containing these parameters.
First set the AB encoder by Pn190.2 to 1.
Pn190.2 Setting
0
1
Set Pn190.0 according to the following table:
Pn190.0 Setting
0
1
2
Absolute/Incremental encoder. Set the following parameter to choose
between an absolute encoder and an incremental encoder.
Pn190.1 Setting
0
1
To use the absolute encoder properly you will need a battery that will power
the encoder memory to keep its position.
C-pulse – Set the following parameter to choose between motor with and
without C-pulse.
Pn190.3 Setting
0
1
Set the resolution of A quad B encoder in Pn192, Pn193. Note that the value
in Pn192 should be set as the physical (optical) resolution, excluding the x4
multiplication done by the driver internally.
Parameter
Pn192
Pn193
Other motor brand with A quad B encoder
Setting [pulses/rev]
Setting range 0-9999
Default setting: 2048
Setting range 0-419
Default setting: 0
5-89
Chapter 5: Parameter Settings and Functions
Results
Yaskawa Serial Encoder
AB Encoder
Results
Yaskawa AB model SGM
Yaskawa AB model SGMP
Results
Incremental Encoder
Yaskawa absolute A quad B encoder
Results
C-pulse used
C-pulse not used
Unit
Pulse number of A quad B
Pulse / Rev. encoder
(Low bit)
Pulse number of A quad B
Pulse*10000 / Rev. encoder
(High bit)
Signal