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- 112 - Aries User Guide
rotary motors by default. If a linear motor is configured, the drive sets a 2.67
MHz pre-quadrature maximum input encoder frequency by default.
The
ENCFLT
command increases the default maximum pre-quadrature
encoder frequency from 1.02 MHz to 2.67 MHz or 5 MHz. This allows users
to take advantage of the higher input frequency, if necessary, at the expense
of some noise immunity.
Note:
This command does not take effect until you cycle power to the drive
or send the
RESET
command.
ENCOFF
Encoder Offset
Type
Motor configuration
Product Rev
Syntax
<a_>ENCOFF<i>
Aries
1.0
Units
i = encoder offset
Range
-32768 to 32767
Default
0
Response
ENCOFF: <*>0
See Also
ALIGN
,
ENCPOL
,
SHALL
,
IANI
,
CMDDIR
,
P163
The
ENCOFF
command specifies the encoder offset. All standard (non-smart)
Parker encoders have an encoder offset of 0 degrees. The smart encoders
store the encoder offset in the motor, which the drive reads (and stores in the
ENCOFF parameter) upon power-up. The offset can vary from
–180 degrees (corresponding to ENCOFF=-32768) to +180 degrees
(corresponding to
ENCOFF
= 32767).
Note:
To convert from degrees to counts, just multiply the offset in degrees
by 182.044.
ENCPOL
Encoder Polarity
Type
Drive Configuration
Product Rev
Syntax
<a_>ENCPOL<b>
Aries 2.0
Units
b = polarity bit
Range
0 (normal polarity), 1 (reverse polarity)
Default
0
Response
ENCPOL: <*>0
See Also
ALIGN
,
CMDDIR
,
TPE
,
TPER
The
ENCPOL
command reverses the encoder counting direction.
You can reverse the encoder polarity if the encoder input is counting in the
wrong direction (for example, using a custom motor). This reverses the
encoder counting direction without having to change the actual wiring to the
encoder input.
Notes
•
This command does not take effect until you cycle power to the
drive or send the
RESET
command.
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