Chapter 6 Command Reference - 103 -
•
(Rotary motor) Encoder limit of 5 MHz (pre-quadrature)
•
Linear motor speed limitations include encoder resolution and track
length.
•
The corner of the continuous speed/torque or speed/force curve
(the point where the continuous and peak torque/force curves
meet).
The
DMTW
value is used in conjunction with
DMTICD
to protect the motor from
thermal damage.
DMVLIM
Velocity Limit
Type
System
Product Rev
Syntax
<a_>DMVLIM<r>
Aries 1.0
Units
Rotary motor: r = revolutions/second
Linear motor: r = meters/second
Range
Ø.ØØ to 16Ø.ØØ : ±Ø.Ø1
Default
125.ØØ
Response
DMVLIM: <*>5Ø.ØØ
See Also
DMODE
,
DMTR
Auto-Setup
: When using a Parker motor and the Aries Support Tool, this
command is automatically set for the selected motor.
If you did not use the Aries Support Tool, are using non-Parker motors, or
sent an
RFS
command to the drive, the parameter is set to zero (0)—you
must
manually set this parameter
to a non-zero number.
For a list of auto-configured commands, see
DMTR
.
The
DMVLIM
command sets a limit that the commanded velocity cannot
exceed without affecting gains or scaling. This is typically used to protect
parts of the mechanical system.
If the velocity demand from the internal Aries control loops exceeds the limits
set by
DMVLIM
, the Aries invokes the “Override Mode”, in which the drive
software clamps the maximum velocity to the value set by
DMVLIM
.
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