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參數(shù)資料
| 型號(hào)： | DK1241A |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Advanced Microstepping Motion Control Chipset |
| 中文描述： | 高級(jí)微步運(yùn)動(dòng)控制芯片組 |
| 文件頁數(shù)： | 39/60頁 |
| 文件大?。?/td> | 422K |
| 代理商： | DK1241A |
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39
The starting velocity parameter is not double buffered. It takes
affect immediately, not after an UPDATE command.
STOP
Data/direction:
Encoding:
Axis acted on:
Available on:
Double buffered:
Abruptly stop current axis motion
none
46 (hex)
current axis
all axes
yes
STOP, also known as CLR_PRFL in earlier chipset versions, stops the
current axis by setting the target velocity to zero. This function will not
be performed until a parameter update occurs. After the update occurs
the axis trajectory generator will stop and the motion complete bit will
be set. This command is useful for stopping the axis abruptly.
SMOOTH_STOP
Data/direction:
Encoding:
Axis acted on:
Available on:
Double buffered:
Smoothly stop current axis motion
none
4e (hex)
current axis
all axes
yes
SMOOTH_STOP stops the current axis by setting the desired velocity
to zero, resulting in a controlled deceleration of the axis eventually to a
velocity of 0. The deceleration profile will mrror the acceleration profile
for the current profile mode. For example if the SMOOTH_STOP
command is given during an s-curve profile the deceleration profile may
have up to three phases, depending on the #of phases during the
acceleration profile, and if the SMOOTH_STOP command is given
during a trapezoidal profile or a velocity mode profile the deceleration
will be linear, with a value equal to the acceleration parameter.
This command does not function when the profile mode is set to
Electronic Gear.
SYNCH_PRFL
Set target position equal to the actual
position
none
47 (hex)
current axis
all axes
yes
Data/direction:
Encoding:
Axis acted on:
Available on:
Double buffered:
SYNCH_PRFL sets the trajectory profile generator target position (in
mcrosteps) equal to the actual axis position (in encoder counts),
clearing the following error. This command is available for all profile
types. This function will not be performed until a parameter update
occurs.
The SYNCH_PRFL command does not set the target velocity to
zero. If it is desired that the axis not move after a SYNCH_PRFL
command then a STOP command, in addition to the SYNCH_PRFL
command should be used.
GET_POS
Data/direction:
Encoding:
Axis acted on:
Available on:
Double buffered:
Get command position
2/read
4a (hex)
current axis
all axes
-
GET_POS returns the destination position set using the SET_POS
command. It returns the double-buffered value (set directly by the host),
which may or may not correspond to the active value, depending on
whether the profile parameters have been updated. The returned
position is a signed 32-bit number with units of usteps.
GET_VEL
Data/direction:
Encoding:
Axis acted on:
Available on:
Double buffered:
Get command velocity
2/read
4b (hex)
current axis
all axes
-
GET_VEL returns the maximumvelocity set using the SET_VEL
command. It returns the double-buffered value (set directly by the host),
which may or may not correspond to the active value, depending on
whether the profile parameters have been updated. The returned
velocity is an unsigned 32-bit number in 1/216 format with units of
usteps/cycle.
GET_ACC
Data/direction:
Encoding:
Axis acted on:
Available on:
Double buffered:
Get command acceleration
2/read
4c (hex)
current axis
all axes
-
GET_ACC returns the acceleration value set using the SET_ACC
command. It returns the double-buffered value (set directly by the host),
which may or may not correspond to the active value, depending on
whether the profile parameters have been updated. The returned
position is either an unsigned 32-bit number in 1/216 format with units
of usteps/cycle2, or a signed 32 bit number in 1/216 format with units of
usteps/cycle2.
This command is used when the profile mode is set to trapezoidal
point-to-point or velocity contouring.
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