Galil Motion Control DMC-40x0 Series - Page 52

42 ● BB DMC-40x0 Command Reference
BB
FUNCTION: Brushless Phase Begins
DESCRIPTION:
The BB function describes the position offset between the Hall transition point and θ = 0, for a
sinusoidally commutated motor. This command must be saved in non-volatile memory to be
effective upon reset.
ARGUMENTS: BB n,n,n,n,n,n,n or BBA=n where
n is a signed integer which represent the phase offset of the selected axes, expressed in multiples
of 30°.
n = ? returns the hall offset for the specified axis.
USAGE: DEFAULTS:
While Moving No Default Value 0
In a Program Yes Default Format 0
Command Line Yes
Controller Usage
ALL CONTROLLERS
EXAMPLES:
BB, 30,,60
The offsets for the Y and W axes are 30° and 60° respectively
OPERAND USAGE:
_BBn contains the position offset between the Hall transition and θ = 0 for the specified axis.
RELATED COMMANDS:
BA Brushless Axis
BC Brushless Commutation
BD Brushless Degrees
BI Brushless Inputs
BM Brushless Modulo
BO Brushless Offset
BS Brushless Setup
BZ Brushless Zero
Note: BB is only effective as part of the BC command or upon reset.