Table of Contents
Advertisement
DSi output specifications
Digital output signals
Form - Square wave differential line driver to EIA RS422A
Incremental
1
2 channels A and B in quadrature (90° phase shifted)
Signal period P
Resolution S
A
B
propoz reference
1
Z
1
For clarity, the inverse signals are not shown.
2
Connected encoders must be configured with line dirven alarm output.
42
TONiC
REXM20 / REXT20 angle encoder system installation guide
™
The resolution and retiming frequency
are determined by the TONiC Ti
interfaces connected to the DSi.
Ensure that the two Ti interfaces have
the same part numbers.
Duration as resolution S.
Customer-positionable.
NOTE: The propoz reference mark is
resynchronised at power-up and can be
output in any quadrature state.
Alarm
1
Line driven
(Asynchronous pulse)
> 15 ms
E
or 3-state alarm
2
Differentially transmitted signals forced open circuit for > 15 ms when alarm conditions valid.
Initialisation status
Open collector output
K
Initialisation
completed
An alarm is asserted when either TONiC encoder
goes into an alarm condition, or when the DSi detects
that a miscount has occurred.
The miscount alarm will be cleared when the DSi
detects the correct count.
The initialisation status goes low when the DSi
is in initialisation mode (occurs when the DSi
is powered-up or when an alarm condition has
been cleared). When initialization is complete,
the signal will go high.
Advertisement
Table of Contents
