Programmable Stepper Drive.pdf

## Programmable Stepper Drive with Integrated Power Supply (Si3540)

This compact and powerful stepper drive features integrated power supply, offering a complete solution for precise motor control. Key specifications include:

Power:

- Input: 110/220 Vac, 50/60 Hz (switch selectable), 40 Vdc nominal
- Output: Up to 3.5 A per phase (software selectable), linear toroidal transformer based power supply
- Maximum Output Power: 140 W

Motor Control:

- Amplifier Type: MOSFET dual H-bridge
- Control: 3-state, pulse width modulated (PWM) with 20-30 kHz switching frequency
- Resolution: 13 software selectable microstepping resolutions from 2000 to 50,800 steps/revolution
- Idle Current Reduction: 0%, 25%, 50% or 100% software selectable

I/O and Communication:

- Inputs: 8 optically isolated digital inputs (5-24 Vdc), 4 programmable for triggering, sensing, homing etc.
- Outputs: 3 optically isolated digital outputs (12-24 Vdc, 100 mA max) for interfacing with external equipment
- Communication: RS232 serial port for programming and real-time control, SCL software included

Size and Mounting:

- Dimensions: 57 x 198 x 137 mm (2.25 x 7.8 x 5.4 in)
- Chassis Material: Aluminum with integral heat sink
- Mounting: NEMA 4/12 rated (IP56/52) for splash and dust protection

Optional Features:

- Operator Interface (MMI): NEMA 4/12 rated, 4x20 character LCD display with 20-key membrane keypad
- Hub 444 Multi-Axis Network Hub: For connecting multiple drives in a network configuration.

Recommended Motors:

The Si3540 is compatible with NEMA 17, 23 and 24 step motors from Omega (e.g., OMHT series).

Accessories:

- Programming cable
- USB to RS232 converter
- Power cords
- DIN rail mounting kits