BLII-50A
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The BLII-50A Servo Drive Unit offers precise motion control with 180-240V AC three-phase input and regenerative discharge capabilities. It integrates motor brake, thermal protection, encoder feedback via XB-1/2 terminals, and supports a 24V power supply for encoder circuits. It ensures reliable performance in industrial settings.
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Product Description:
The BLII-50A Servo Drive Unit is developed to deliver accurate and controlled motion performance in industrial applications. This unit supports smooth integration with motor, brake, encoder and power supply systems.
The Okuma BLII-50A servo drive unit accepts a three phase 180 to 240 V AC power input with a frequency range of 50/60 Hz. The main terminals R, S and T of this drive are connected to a 3 phase 200 V AC power supply while terminals AC1 and AC2 accept 100 V AC input. This unit interfaces with a regenerative discharge unit connected through VH, RD, TRC and VL terminals used optionally to absorb excess energy. Motor connections include terminals U1, V1 and W1 routed to the motor’s U, V, and W phases. This drive integrates brake functionality through MB11 and MB21 terminals and thermal protection is wired using TP11 and TP21. It also includes motor brake power connections (MBP, MBN) and a motor overload detection signal (TPP, TPN) via the XB-4 terminal block. Encoder feedback is managed through XB-1 and XB-2 terminals that handle signal types such as SIN, COS, FG and MPR. Communication lines include ECLK, WRST and DATA with isolated ± 12 V and 0 V outputs.
Encoder signals and shielded feedback wiring of this BLII-50A servo drive unit are carefully structured for signal integrity. Analog signal input (DA) and communication (DA-COM) are provided on XB-3 terminal of this drive unit. A 24 V power supply is used for encoder circuits and controller boards. Proper grounding of this unit is ensured via FG points distributed across terminals. This BL series servo drive unit is designed for reliability with built in safety signaling.
Frequently Asked Questions about BLII-50A:
Q: What is the input power range for the BLII-50A Servo Drive Unit?
A: The BLII-50A accepts three-phase 180-240V AC power with a frequency range of 50/60 Hz. The main terminals R, S, and T connect to a 3-phase 200V AC supply.
Q: How does the Okuma BLII-50A handle excess energy?
A: The unit interfaces with a regenerative discharge unit through VH, RD, TRC, and VL terminals. These terminals are used to absorb excess energy, ensuring safe operation.
Q: What motor protection features are included in the BLII-50A?
A: The BLII-50A integrates thermal protection via TP11 and TP21 terminals. It also offers motor brake power connections and overload detection via XB-4 terminal block.
Q: How does the BLII-50A manage encoder feedback?
A: The BLII-50A handles encoder feedback through XB-1 and XB-2 terminals. These terminals process signal types like SIN, COS, FG, and MPR for precise motion control.
Q: What is the grounding mechanism for the Okuma BLII-50A?
A: The unit ensures proper grounding through FG points distributed across its terminals. This setup ensures stable operation and prevents electrical noise interference.
