Motion Coordinator Technical Reference Manual
Daughter Boards 4-11
Servo Encoder Daughter Board
Servo Encoder Daughter Board
Trio Product Code P200
Description:
The servo daughter board provides the interface to a DC or Brushless servo motor
fitted with an encoder or encoder emulation.
ATYPE
parameter for Servo Encoder Daughter Board = 2
Analog Output
The Servo Encoder Daughter board provides a 12 bit +/-10v voltage output to
drive most servo-amplifiers. The voltage output is opto-isolated as standard to
maximise the noise immunity of the system.
Encoder Inputs
The encoder port provides differential line receiver inputs capable of counting up
to 1MHz edge rate. These inputs are opto-isolated to maximise the noise immu-
nity of the system. The encoder port also provides a convenient 5v output for
powering the encoder, simplifying wiring and eliminating external supplies.
Registration Function
The Servo Encoder Daughter provides a hardware position capture function for
both the Z input and a dedicated 24volt registration input. Transitions of either
polarity on both these inputs can be used to record the position of the axis at the
time of the event within less than 1 micro seconds. This practically eliminates
time delays and avoids interrupting the processor frequently in multi-axis sys-
tems.
VV+-
R0v
ENCODER
21345
98 76
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