SMAC
LAC-26 Technical Reference Manual
4/29/2013 68
5.3.3 Over the Network
Both DZC and DZR drives can utilize network communication as a form of input command. DZC drives can
provide an input reference command through the CAN interface, and DZR drives can provide an input
reference command through the RS-485 interface. For more information on CANopen and RS- 485, see
“Communication Protocol” on page 6.
5.3.4 PWM and Direction
DZ drives accept either a PWM and Direction or a Single Input PWM signal as the command source input
type. The Direction inputs commands the direction of rotation, while the PWM input duty cycle commands
the drive output. The PWM input is connected to P1-17, while the Direction input is connected to P1-19.
Scaling, offset, and command inversion may be configured for customized control. The PWM and Direction
command source supports broken wire detection for cases when the PWM command reaches 0% or 100%
duty cycle. The frequency range of the PWM and Direction command input is 1kHz - 125kHz.
5.3.5 Indexing
DZ drives allow configuration of up to 16 separately defined Index tasks in DriveWare. Indexes can be
either Absolute (commands a pre-defined move to an absolute position) or Relative (commands a pre-
defined move relative to the current position).
5.3.6 Jogging
DZ drives allow configuration of two separate Jog velocities in DriveWare, commanding motion at a defined
constant velocity with infinite distance.
5.3.7 5V TTL Step and Direction (DZR Drives Only)
DZR drives accept a differential Step and Direction input command from an external source. The Direction
input commands the direction of rotation, while each pulse of the Step input commands the motor to "step"
in that direction. Since the input is directly controlling the actual position of the motor, the physical motor
location can be determined without any other feedback element. The differential Step input signal should
be connected to pins P1-17 and P1-18, and the differential Direction input signal should be connected to
pins P1-19 and P1-20. See “Step and Direction Input (DZR drives only)” on page 42 for more information.
5.4 System Requirements
To successfully incorporate a DZ digital servo drive into your system, you must be sure it will operate
properly based on electrical, mechanical, and environmental specifications while anticipating impacts on
performance.
5.4.1 Specifications Check
Before selecting a DZ digital servo drive, a user should consider the requirements of their system. This
involves calculating the voltage, current, torque, and power requirements of the system, as well as
