Installation ASDA-B3 2.8 The use of braking A brake is usually used for motions in the Z-axis direction because gravity causes the mechanism 2 to fall. A brake can prevent the mechanism from falling and reduce the motor’s excessive resistance. The motor lifespan could be reduced due to the excessive heat generated by continuous resistance. To avoid incorrect operation, the brake can only be enabled when the servo is switched off. The drive controls the brake with DO. If DO.BRKR is set to off, it means the brake is not operating and the motor is clamped; if DO.BRKR is set to on, it means the brake is operating and the motor can run freely.
You can use MBT1 (P1.042) and MBT2 (P1.043) to set the delay time. Timing diagram of brake control: SON (DI input) BRKR (DO output) ZSPD (P1.038) Motor speed Motor speed ZSPD (P1.038) Output timing of the BRKR signal: 1. When the servo drive is off and the time set for P1.043 is exceeded, but the motor speed is still faster than the speed set for P1.038, DO.BRKR is off (the motor is clamped). 2. When the servo drive is off and the time set for P1.043 is not yet reached, but the motor speed is already slower than the speed set for P1.038, DO.BRKR is off (the motor is clamped). 2-22 ON OFF OFF OFF ON OFF MBT1 (P1.042) MBT2 (P1.043