Positioning unit
Date: 08/02/21
File: Servo3M_M12_ing.doc
page 3/8
Description
The SERVO.M positioning unit comprises a DC geared motor with microprocessor control of the drive gear
and an incremental position transducer (encoder) or absolute position transducer (precision potentiometer)
connected to the output shaft with interface for field bus and display with 5 digits. It creates, in a single
compact device, a complete system for axis control axis where the position to reach is communicated by bus
and a PID type controller is present. The
SERVO.M-E
version has a position transducer with an incremental
optical encoder, while the
SERVO.M.P
version has a precision potentiometer.
The SERVO.M unit has a hollow shaft output to enable a simple installation and a versatile use, even with
pre-existing manual motion machines that must be automated. Therefore it is suitable for a large number of
applications on machinery within industries such as printing, packaging, woodworking, marble, plastic, etc. A
simple linking and lay out are guaranteed by a supervisor (PC, PLC), the system interfaces with a bus-field to
control the positioning and enable the modifications of the control parameters (present value, speed, state).
The communication protocol can be MODBUS RTU, CANopen, PROFIBUS DP.
For electrical connection, the power-supply cable and the communications cables are separate: the standard
version of the SERVO.3M has 3 cable glands for input and output (2x PG9, 1x PG7); an M12-T connector is
available as option for power instead of the PG7 cable gland.
Installation
Before installing the instrument, read the following warnings:
a) Connect the instrument strictly following the instructions of the manual.
b) Carry out the connections using the correct wires within the limits of the tension and power supply as
indicated in the technical data.
c) The instrument does not have an ON/OFF switch, hence it comes on when connected to the power supply.
For safety reasons, the equipment connected permanently to the power supply requires a bi-phase selector
switch which should be within easy reach of the operator.
d) If the instrument is connected to any apparatus not isolated electrically, carry out an earth connection to
avoid it being connected directly through the structure of the machine.
e) It is the responsibility of the user to check, before using, the correct settings of the parameters of the
instrument to avoid damage to persons or equipment.
f) The instrument cannot function in a dangerous environment (inflammable or explosive). It can be
connected to elements that operate in the same atmosphere only through appropriate interfaces, according
to the current safety regulations.
g) Avoid dust, humidity, corrosive gases, heat sources.
