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Moog Animatics SmartMotor™ Developer's Guide, Rev. L
Page 524 of 909
MC
Mode Cam (Electronic Camming)
APPLICATION:
Motion control
DESCRIPTION:
Request Cam mode (electronic camming)
EXECUTION:
Buffered until a G command is issued
CONDITIONAL TO:
Cam table created
LIMITATIONS:
N/A
READ/REPORT:
N/A
WRITE:
N/A
LANGUAGE ACCESS:
N/A
UNITS:
N/A
RANGE OF VALUES:
N/A
TYPICAL VALUES:
N/A
DEFAULT VALUE:
N/A
FIRMWARE VERSION:
5.x and later
COMBITRONIC:
MC:3 or MC(0):3
where ":3" is the motor address — use the actual address or a
variable
DETAILED DESCRIPTION:
The MC command puts the SmartMotor™ into Cam mode, which causes the motor to follow a
predetermined profile according to an external encoder source. To set up a Cam operation,
you must also specify position data and initialize it to the master source (either an external or
internal timer). The camming motion is started by issuing a G command. The following
example shows a complete command sequence.
NOTE:
Refer to the Related Commands section, as there are several important
commands to use when creating a Cam table and configuring the cam motion.
In Cam mode, each value of the external encoder defines a required corresponding motor
position. Cams typically define a periodic motion profile or trajectory.
NOTE:
The MCW(table, point) command is
mandatory
when using cam mode (MC)
It should be called after the creation of cam tables but before the G command. If
cam tables already exist in memory from a power-on, then MCW should be called
at least once before the G command to enter cam mode. Refer to the following
example.
Cam tables may be stored in EEPROM or in user variables ab, aw or al.
The master source can be selected with the SRC command. Also, the MFA, MFD, MFMUL,
MFDIV, MFSLEW and MFSDC commands are in effect with Cam mode. This allows
sophisticated traversal control over the Cam table. For instance, a motion can be defined
where a continuously running master can be eased into and out of using the MFA and MFD
Part 2: Commands: MC
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