Rockwell Automation 4100 ESRS Encoder Signal Reference Simulator Installation Manual - Manual (Page 29)

Publication 4100-IN505A-EN-P - October 2000
Operation 3-3
EXT – This setting selects a customer supplied line speed input via the
EXT LINE SPEED IN input.
Inputs and Outputs The following analog and digital inputs and outputs are provided.
Line Speed Ref Out
The ESRS provides an analog indication of commanded speed after
rounding and acceleration have been applied. The analog output
range is 0V > Vout > 10V.
The output produces a voltage ranging from 0 to +10 V DC as the
commanded speed varies from stationary to the selected maximum.
Within the speed range selected, the output voltage is directly
proportional to speed.
In Bi-directional Mode, this output produces +10V DC at maximum
speed for both directions of rotation. The direction of rotation is then
defined by the quadrature pulse phase via the Phase Output.
The impedance of this output is approximately 300
Ω
. Therefore to
ensure low interface errors, any device connected to this output
should have an input resistance of greater than 30k
Ω
.
Strobe Out
The Strobe Out is a TTL Digital Output providing a buffered signal to
trigger stroboscopes, oscilloscopes, and so forth.
This output provides a TTL square wave whose rising edge is
synchronized to the rising edge of the Index pulse.