BD3E-AP Series

Control Method:
IGBT PWM control, sinusoidal current drive method

• Speed loop frequency response: BD3E 2.1 kHz
• Speed control range: 1:5000
  (Lower limit is the condition where the motor does not stop under rated torque load)

Speed fluctuation:

• Load variation (0–100%): ±0.5% (at rated speed)
• Voltage variation (±10% rated voltage): 0.5% (at rated speed)
• Temperature variation (25 ± 25°C): ≤ ±0.5% (at rated speed)
• Torque control accuracy (repeatability): ±2%
• Soft start time setting: 0–10 s
  (Acceleration and deceleration can be set separately)

Input / Output Signals

Encoder pulse output:

• Phase A, B: differential output
• Phase Z: differential output or open collector output
• Arbitrary frequency division supported

Sequence Control Input Signals (7 points, assignable):

• Servo ON (S-ON)
• Control mode switching
• Forward drive inhibit (POT)
• Reverse drive inhibit (NOT)
• Deviation counter clear (CLR)
• Alarm reset (A-RST)
• Gain switching (GAIN)
• Command pulse inhibit (INHIBIT)

✔ Signals can be assigned and logic (positive/negative) can be inverted

Sequence Control Output Signals (5 points, assignable):

• Alarm signal (ALM)
• Positioning complete (COIN)
• Z pulse (CZ, open collector)
• External brake release (BK)
• Servo ready (S-RDY)

✔ Signals can be assigned and logic can be inverted

Communication

• RS485 communication interface
• 1:N communication (up to 31 stations with repeater)
• Axis address set via parameters
• Connectable devices: PC, upper-level controller

User Interface

• LED display
• 6 keys/buttons

Safety & Protection Functions

Dynamic Brake (DB):

Activated when:

• Main circuit power OFF
• Servo alarm
• Servo OFF
• Overtravel (OT)

Regenerative handling:

• Built-in or external regenerative resistor

Overtravel (OT) protection:

• When POT/NOT is triggered → deceleration stop or free-run stop

Protection functions:

• Overcurrent
• Overvoltage
• Undervoltage
• Overload
• Regeneration fault

Position Control

• Feedforward compensation: 0–100% (1% increments)
• Positioning completion width: 0–65565 encoder counts

Input signals:

• Pulse type: differential input or open collector

Maximum input pulse frequency:

• Differential: up to 4 Mpps (pulse width ≥ 0.125 µs)
• Open collector: up to 200 Kpps (pulse width ≥ 2.5 µs)
• Clear signal: deviation pulse clear (open collector)

Internal position setting:

• Position selection via DI signals (0–15 positions)
• Function can be assigned to other terminals

Speed Control

• Internal speed setting
• Soft start time: 0–10 s (separate accel/decel)
• Speed selection via external IO signals

Torque Control

• Internal torque setting
• Torque selection via external IO signals

Other Functions

• Vibration suppression:
  Supports high, medium, and low-frequency resonance suppression
• Auto tuning:
  HDM / PDFF gain adjustment modes
• Adaptive notch filter:
  • 5 filters (50 Hz ~ 4000 Hz)
  • 2 filters support adaptive tuning