Accelnet Plus Micro Modules User Guide
16-01687 Rev 03
Copley Controls
Page 9 of 139
2
I
NTRODUCTION
A
CCELNET
P
LUS
M
ICRO
M
ODULES
O
VERVIEW
The Accelnet Plus Micro Module drives provide 100% digital control of brushless or brush servo
motors in DC powered module packages. All of these models provide a Safe Torque Off (STO)
function. Two opto-couplers are provided which, when de-energized, prevent the upper and lower
devices in the PWM outputs from being operated by the digital control core. This provides a positive
OFF capability that cannot be overridden by the control firmware, or associated hardware
components. When the opto-couplers are energized (current is flowing through the input diodes),
the control core will be able to control the on/off state of the PWM outputs. For more information on
STO for these models,
see Section 6.
All models support a wide range of feedback devices. These include digital quadrature encoders,
analog Sin/Cos encoders, EnDat, BiSS, SSI Absolute A encoders and digital Halls.
Accelnet Plus Micro Modules
models can operate in several basic ways:
•
AEV & AEZ models operate as slave devices on an EtherCAT network. Servo drives can perform the
CoE (CANopen protocol over EtherCAT) operating modes with the additional cyclic-synchronous
position, velocity, and torque modes.
•
APV & APZ models can be nodes on a CANopen network. CANopen compliance allows the drive to
take instruction from a master application to perform torque, velocity, and position profiling,
interpolated position, and homing operations. Multiple drives can be tightly synchronized for high
performance coordinated motion.
•
All models can receive current, velocity or position commands from an external controller. In
current and velocity modes they can accept ±10 Vdc analog, digital 50% PWM or PWM/polarity
inputs. In position mode, inputs can be incremental position commands from step-motor controllers
in Pulse and Direction or Count Up/Count Down format, as well as A/B quadrature commands from
a master-encoder. Pulse-to-position ratio is programmable for electronic gearing.
•
Controlled directly over an RS-232 serial link with simple ASCII format commands.
•
All models can work as stand-alone controllers running CVM control programs with Indexer 2.
AEV/APV
AEZ/APZ-50
AEZ/APZ-50-C