These products have been replaced by the STF06 stepper drives. Read this notice for details.
The STF03 stepper drive is a DC-powered microstepping drive for controlling two-phase, bipolar step motors. It offers advanced current control and an anti-resonance algorithm that electronically damps motor and system resonances to improve motor smoothness and usable torque over a wide speed range. The drive employs electronic torque ripple smoothing and microstep emulation to greatly reduce motor noise and vibration. The drive must be powered from 12 to 48 VDC and can output up to 3.0 A/phase (peak-of-sine) to the step motor. Over-voltage, over-temperature and over-current protection features prevent damage while running in adverse conditions.
Matching Motors
The STF03 offers the lowest power range in the STF series, making it suitable for the smallest step motors. It is complemented by a specifically matched set of NEMA 11 and 17 frame stepper motors (see Related and Recommended products below). For higher-powered STF drives to run larger motors see the STF06 and STF10.
For stepper drives with encoder feedback options see the ST Series Stepper Drives.
Inputs and Outputs
For connecting to external devices such as control signals, limit switches, proximity or photoelectric sensors, PLC I/O, lamps, and other devices, the drive comes with 8 digital inputs and 4 digital outputs. The function of each I/O point is configured with the STF Configurator software. Details on wiring different I/O types can be found in the STF Hardware Manual (see Downloads section).
Note: Flying lead I/O cable is sold separately, P/N 3004-348 .
Available Part Numbers:
There are five different communication options to choose from, as shown in the table below. All STF03 drives offer stored program execution using Applied Motion's Q Programming language.
| Drive Part No. |
Communications |
Description |
| STF03-R |
RS-485 |
- Dual RS-485 ports for configuration, programming, and daisy chain networking connections.
- Stream commands from a host controller to as many as 32 axes using Applied Motion's Serial Command Language (SCL).
- Built-in support for Modbus RTU communciations.
|
| STF03-C |
CANopen |
- Dual CANbus ports for daisy chain networking and operation as a slave node on CANopen networks.
- Conforms to Can in Automation (CiA) DS301 and DS402 specifications.
- Supports Profile Position, Profile Velocity and Homing modes, as well as the ability to run stored Q programs via Applied Motion-specific CANopen objects.
|
| STF03-D |
Ethernet |
- Dual fast 10/100 Mbit Ethernet ports for configuration, programming and daisy chain networking connections.
- Stream commands from a host controller to multiple axes using Applied Motion's Serial Command Language (SCL) over Ethernet. Supports both TCP and UDP protocols.
- Built-in support for Modbus TCP communications.
|
| STF03-IP |
EtherNet/IP |
- Dual fast 10/100 Mbit Ethernet ports for configuration, programming and daisy chain networking connections.
- Designed for use on EtherNet/IP networks, the widely used industrial protocol for manufacturing automation applications.
- With EtherNet/IP, users can control, configure and query the drive using an open, standards-based, industrial Ethernet connection at speeds up to 100 Mbits/sec.
|
| STF03-EC |
EtherCAT |
- Specifically designed to operate on EtherCAT networks using the CANopen over EtherCAT (CoE) protocol.
- Conforms to CiA DS402 specifications.
- Supports Cyclic Synchronous Position(CSP), Profile Position, Profile Velocity and a range of Homing modes.
- Able to run stored Q programs, which can be controlled over the EtherCAT network via Applied Motion-specific objects.
|
What's in the box
| Drive Part No. |
Included |
NOT included |
STF03-R
STF03-C
|
- STF Drive
- Mating connectors
- 0.3 m daisy chain communication cable
- 3004-391-1M host communication cable
- Screwdriver
- Quick Setup Guide (also available in Download
|
- Compatible motor (required), see motors below
- DC power supply (required), see accessories below
- I/O cable (optional), see accessories below
- Regen clamp (optional), see accessories below
- USB to serial adapter (optional), see accessories below
|
STF03-D
STF03-IP
|
- STF Drive
- Mating connectors
- 0.3m Communication cable
- Screwdriver
- Quick Setup Guide (also available in Download
|
- Compatible motor (required), see motors below
- DC power supply (required), see accessories below
- I/O cable (optional), see accessories below
- Regen clamp (optional), see accessories below
|
| STF03-EC |
- STF Drive
- Mating connectors
- 0.3m Communication cable
- Screwdriver
- Quick Setup Guide (also available in Download
- RS232 serial configuration cable
|
- Compatible motor (required), see motors below
- DC power supply (required), see accessories below
- I/O cable (optional), see accessories below
- Regen clamp (optional), see accessories below
- USB to RS232 serial adapter (optional), see accessories below
|
All STF drives are CE approved and RoHS compliant.
