BECKHOFF AL2000 Application - Manual (Page 38)

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38
DC link diagram
P1, P2 and P3: the three phases of the AC power supply.
• D1 ... D6: these diodes are part of the 3 phase diode bridge.
• C: the DC link capacitor.
• Tb: the activating transistor of the braking resistor.
• Rb: the braking resistor.
• T1 ... T6: transistors of the PWM amplifier stage.
• L1, L2 and L3: The coils of the motor.