Dcmdz, Dibw – Parker Hannifin 88-021610-01G User Manual

Page 101

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Parker Hannifin

Chapter 6 Command Reference 101

DCMDZ

Zero the Drive Command Offset

Type

Drive Configuration

Product Rev

Syntax

<a_>DCMDZ=<r>

Aries 1.0

Units

r = volts

Range

-1Ш.ШШ to 1Ш.ШШ

Default

Ш.ШШ

Response

N/A

See Also

ANICDB

,

DMODE

,

TANI

The DCMDZ command sets the zero point for the command input. When in
torque/force mode (DMODE2), this will minimize motor drift.

Executing the DCMDZ command without an argument sets the zero reference

point to the last voltage read at the command input. To execute this
command correctly, short the AIN + and AIN – pins together on the

DRIVE I

/

O

connector, or command zero volts from the servo controller.

You can also use DCMDZ to set the zero point to an arbitrary voltage by
entering that value. For example, DCMDZ = Ø.5 makes 0.5 volts equal to a

commanded velocity of zero (0) rps. Note that this value is the internal level
and does not take into account any offsets in the incoming command signal.

DIBW

Current Loop Bandwidth

Type

Tuning

Product Rev

Syntax

<a_>DIBW<i>

Aries 3.0

Units

Hz

Range

250-3000

Default

1200

Response

DIBW: <*>1200

See Also

PGAIN

,

IGAIN

,

IAUTO

When used in conjunction with IAUTO1, this command sets the current loop
bandwidth. Higher values of DIBW will give a faster response to changes in

commanded current, at the expense of some overshoot. Lower values of
DIBW, will give a slower response, with much less overshoot.

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