Servotronix CDHD2S User Manual page 134

Application Setup
The following parameters are used to configure and monitor the Hall commutation sensor.
VarCom
HALLSTYPE
HALLS
HALLSINV
CDHD2S monitors the Hall signal status. If status 000 or 111 is detected, an illegal Hall fault
will be generated (digital display:
If the differential Hall signal cannot be detected, a differential Hall disconnection fault will be
generated ( ).
r38|Fr38
The differential Hall signal can be used simultaneously with the incremental A and B signals, or
as a Hall only using the standard motor feedback C4 connector. If your application requires
Note:
differential Hall signals as well as incremental A, B, and index signals, please contact technical
support.
Encoder index
The encoders usually has an additional channel called marker channel, zero pulse, or index
channel. The channel outputs a pulse every revolution, usually a very narrow pulse, which is about
a quarter of the pulse width of channel A or B, but it may be wider. The encoder index can be used
for return (absolute position reference) and commutation alignment.
You can also use the "Find Index" command in the "Motor Feedback" screen of ServoStudio2
to determine the index signal position.
The following parameters are used to configure and monitor the encoder index.
VarCom
MENCZPOS
CDHD2S monitors the index signal line. If any wire is damaged, an index disconnection fault
will be generated (digital display: r5|Fr5).
Phase Find
The Phase Find program is used to initialize the commutation of the incremental encoder
system.
Note: The "Phase Find" program can only be used on balanced axes; it cannot be used on
unbalanced mechanisms such as the vertical Z axis. Additionally, it cannot be used
when gantry mode is in effect.
Table 6-4
Read the Hall signal status.
Convert the polarity of a single Hall signal related to the motor phase UVW.
).
r6|Fr6
Table 6-5
Description
Hall signal type.
Description
Encoder index position.
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