If the drive is connected while the motor is hot, the thermal image provided by the Dx2020 GUI
will return a false estimate. This protection supports but doesn't completely replace the
thermal switch in the motor.
In the case of permanent magnet synchronous motor, you can activate the Field Weakening
algorithm, refer to the following information.
PN: L-MAM2-E-201
Moog Casella DM2020 Installation and Startup Guide
6.4.2 Motor Parameter Configuration
Field Weakening Algorithm
This algorithm is available as a "torque increase function" at high speed, allowing increased torque
available above the nominal speed. Obviously, this takes place at the expense of a greater output
current and, consequently, lower yield of the system.
To enable this feature click the "Enable field weakening". By enabling the "weakening", you can
automatically take advantage of this feature without having to set any parameters. It will prompt
you to select the type of algorithm to use depending on the type of application required; contact
Applications Engineering for assistance.
Brake configuration
In the case of an application with motor control that includes a parking brake on board, through the
"Motor parameters" screen, select the Brake window view sub-menu, in this way an additional drop-
down window will appear relating to the brake control configuration.
The available modes are listed below:
Brake not present
Brake circuit not available
Auto FSM
Activation / deactivation of the motor parking brake in automatic mode in relation to the execution of
the transitions of the Cia 402 state machine
It is possible to insert a delay in the activation and deactivation of the circuit
Total Control Word Brake
Brake circuit with control with complete dependence on specific commands received from the
DM2020 drive and from the master PLC
Semi-automatic Control Word Brake
Special brake circuit with control in combination of commands received from the communication
channel with the PLC and integration / limitations depending on the operation of the machine.
Manual control
By checking the box on the right, the brake circuit control can be further configured and fine tuned
For example:
In the case of Auto FSM mode, it is possible to manually control from the GUI by clicking on the two
activation and deactivation buttons in the same window.
In Total Control Word Brake mode, it is possible to activate / deactivate according to two specific
parameters available within the communication system with PLC
The brake control function has two modes of actuation
Brake board
The parking brake is connected, controlled and powered by the brake circuit board inside the DM2020
drive module.
Channel 1 and Channel 2 digital output
The control signals of the motor holding brake module are generated by a channel that is part of the
digital output circuit.
The motor brake circuit is not directly connected to the DM2020 product; the power supply of the
brake module is performed by a circuit external to the DM2020 system, appropriately sized
and suitable for delivering the electrical performance required by the brake itself.
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