Moog Animatics SmartMotor™ Developer's Guide,Rev. L
Page 328 of 909
BRKENG
Brake Engage
APPLICATION: Motion control
DESCRIPTION: Immediately engages the hardware brake
EXECUTION: Immediate; remains in effect until otherwise commanded
CONDITIONAL TO: Hardware brake option is required
LIMITATIONS: None
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: See BRKSRV on page 332
FIRMWARE VERSION: 5.x and later
COMBITRONIC: BRKENG:3
where ":3" is the motor address — use the actual address or a
variable
DETAILED DESCRIPTION:
CAUTION: It is important to turn the servo off when the brake is engaged.
Otherwise, the motor could drive against the brake and overheat. When the
SmartMotor™ powers up or comes out of a soft reset, the brake control is set
to BRKSRV, by default, to automatically enforce this safety rule.
The SmartMotor™ may be purchased with optional, internal, zero-backlash brakes, which are
used to hold a load for safety purposes. They are fail-safe, magnetic-clutch, disk brakes. The
default power-on state is to disengage the brake when the drive stage is turned on. When
power is lost, the brake engages. The brake takes from 3 to 5 milliseconds to actuate or
release.
When BRKENG is issued, the brake is de-energized, which allows the magnetic brake to lock
the shaft in place.
BRKENG terminates the brake control modes BRKSRV, BRKTRJ and BRKRLS.
NOTE: BRKENG is a manual override for the BRKSRV and BRKTRJ commands.
When BRKENG is used, you must subsequently issue a BRKSRV, BRKTRJ or BRKRLS
command to resume shaft movement.
Part 2: Commands: BRKENG
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