Electromagnetic Brake - Delta Electronics ASDA-B2 series User Manual

ASDA-B2
exceed its limit, it is still limited within the range of ±8V. The revolution provided by
ASDA-B2 series is 10bit, approximated to 13mv/LSB.

6.6.4 Electromagnetic Brake

When the servo drive is operating, if the digital output BRKR is set to Off, it indicates
the electromagnetic brake is disabled and motor is stop running and locked. If the
digital output BRKR is set to ON, it indicates electromagnetic brake is enabled and
motor can run freely.
There are two parameters that affect the electromagnetic brake. One is parameter P1-
42 (MBT1) and the other is parameter P1-43 (MBT2). The users can use these two
parameters to set the On and Off delay time of electromagnetic brake. The
electromagnetic brake is usually used in perpendicular axis (Z-axis) direction to reduce
the large energy generated from servo motor. Using electromagnetic brake can avoid
the load may slip since there is no motor holding torque when power is off. Without
using electromagnetic brake may reduce the life of servo motor. To avoid malfunction,
the electromagnetic brake should be activated after servo system is off (Servo Off).
If the users desire to control electromagnetic brake via external controller, not by the
servo drive, the users must execute the function of electromagnetic brake during the
period of time when servo motor is braking. The braking strength of motor and
electromagnetic brake must be in the same direction when servo motor is braking.
Then, the servo drive will operate normally. However, the servo drive may generate
larger current during acceleration or at constant speed and it may the cause of
overload (servo fault).
Revision September 2013
info@varitel.com - www.varitel.com - Tel. (54) 11-4243-1171 / Fax: (54) 11-4292-7545
Manuel Baliña 456, Lomas de Zamora (B1832CCJ) Buenos Aires, Argentina.
VARITEL INGENIERIA ELECTRONICA S.A.
8V
-8V
Chapter 6 Control Modes of Operation
DOF
6-47