3
Features
Section 1-1
1-1-2
Description of Features
The MC Unit provides the following features.
Motion Control
The direct connection to the Servo Driver provides a high performance / high
precision control system. Operation will be processed in optimal synchroniza-
tion.
• Supports both speed and torque control modes of the Servo Driver.
• Supports switching between the modes during operation.
• Supports speed limit during torque control using the speed reference.
• Selectable MC Unit servo period cycle which can be set to either 0.5 ms
or 1.0 ms.
Servo Driver Access
Apart from the motion control operation with the Servo Driver, the MC Unit
provides the following features:
• Monitor the detailed Servo Driver alarm status.
• Monitor various monitor signals (rotation speed, command torque).
• Monitor the Servo Driver digital inputs and analog input to include in the
application.
• Read and write of the Servo Driver Parameters.
• Execution of several Driver functions from the MC Unit. Examples are
Print Registration, Origin Search, Driver Alarm Reset and Driver Reset.
Easy Programming with
BASIC Motion Control
Language
The multi-task BASIC motion control language is used to program the MC
Unit. A total of 14 programs can be held in the Unit and up to 3 tasks can be
run simultaneously. The MC Unit is programmed using a Windows-based
application called
1
Motion Perfect. Motion Perfect allows extremely flexible
programming and debugging.
Encoder Input and Output
To achieve a solution for multi-axis applications, the MC Unit is provided with
an encoder axis. This axis provides either to have an encoder input for exter-
nal encoders or to have an encoder output to cascade position data to
another MC Unit.
DeviceNet Interface
(MCW151-DRT-E only)
The MCW151-DRT-E can be connected easily in an existing DeviceNet net-
work. The DeviceNet network has a maximum communication distance of
500 m, so an MC Unit in a remote location can be controlled from the Master.
The MC Unit supports both remote I/O and explicit message communications.
• Remote I/O communications
Remote I/O communications can exchange data (4 input words and 4 out-
put words max.) with the MC Unit at high speed and without program-
ming, just like regular I/O.
• Explicit message communications
Large data transfers to and from the MC Unit memory can be performed
by sending explicit messages from the Master when required.
Serial Communications
The MC Unit has three (MCW151-E) or two (MCW151-DRT-E) serial ports for
communication to several external devices. Next to the connection to the Per-
sonal Computer for configuring, the MC Unit can be connected with PCs, Pro-
gramming Terminals (PTs) and other MC Units. The serial ports support the
Host Link Master and Slave protocols.
Absolute Encoder
Support
By using a Servomotor with absolute encoder, the motor position is updated
automatically in the MC Unit at start-up of the system. No origin search
sequence will be necessary in the system initiation phase.
1.Motion Perfect is a product of Trio Motion Technology Limited.