Description
FEC SAN3-24 | AFC1500 Servo Controller | Nutrunner Motor Compatibility
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Model | SAN3-24 |
| System | FEC AFC1500 |
| Product Type | Servo Controller / Servo Amplifier |
| Input Voltage | 3-phase AC 200–220 V ±10% |
| Input Frequency | 50/60 Hz |
| Maximum Current | 6.7 A RMS / 81 A maximum |
| Motor Rating | 60 W or 80 W, depending on motor |
| Motor Feedback | Resolver |
| Communication | RS485 |
| Controller CPU | 32-bit RISC |
| Parameter Storage | Flash ROM |
| Control | Torque, angle and current control |
| Controller Dimensions | Approximately 255 × 60 × 40 mm |
| Approx. Weight | 1.8 kg |
| Mounting Clearance | Minimum 13 mm each side |
| Front Cable Clearance | Approximately 100 mm |
The AFC1500 documentation groups SAN3-24 with the 60 W/80 W class motor configurations and specifies the 200–220 VAC three-phase supply. The controller dimensions are approximately 255 mm high/long, 60 mm wide and 40 mm deep, with a listed weight around 1.8 kg.
Product Introduction
The FEC SAN3-24 is an AFC1500 SAN controller used to drive and monitor electric servo nutrunners. It combines the servo amplifier, controller processor, resolver feedback interface, torque/angle control functions, I/O, and RS485 communication required by the AFC1500 fastening system.
The critical characteristic is its motor-specific configuration. FEC documentation lists SAN3-24 as the updated controller for several RM1 and RM2 tool families, including NFT-051, NFT-101, NFT-201, NFT-301, and NFT-401 configurations. A controller replacement therefore has to be checked against the complete tool type rather than the SAN model alone.
SAN3-24
Application Scenarios & Field Pitfalls — Engineer’s Perspective
Engineering Pain Point
A SAN3-24 can look like a conventional servo amplifier, but the AFC1500 architecture is more tightly matched between controller and nutrunner. The controller identifies the connected servo type, and an incorrect motor/controller combination can generate a Servo Type Error / Servo Type Mismatch.
Typical Applications
- Automated electric nutrunner stations
- Automotive assembly fastening
- Production-line torque-controlled fastening
- Multi-axis AFC1500 fastening systems
- Replacement of older SAN2-series controllers with compatible SAN3-series units
Technical Pitfalls to Avoid
- Match the controller to the tool motor.
FEC documentation identifies SAN3-24 as compatible with several RM1/RM2 motor classes, while RH-series tools require different SAN3-H variants. For example, NFT-211RH1 and NFT-311RH1 are associated with SAN3-24H rather than the standard SAN3-24. - Do not substitute SAN3-24 solely by wattage.
The controller’s servo type, resolver feedback, motor characteristics, and AFC1500 parameters all matter. A physically compatible replacement can still produce a servo mismatch fault if the motor classification is wrong. - Check the incoming power before installation.
The SAN3-24 uses three-phase AC input in the 200–220 V class. It is not a 24 VDC servo controller despite the “24” in the model designation. - Respect thermal and wiring clearances.
The AFC1500 manual specifies at least 13 mm clearance on each side and approximately 100 mm in front for cable connections. It also recommends keeping the SAN unit away from high-transient electrical sources.
Related Products
- SAN2-12 — Earlier AFC1500 SAN controller used with smaller RM1-class tools.
- SAN2-24 — Previous-generation controller associated with RM2 applications.
- SAN2-40 — Higher-capacity SAN2 controller for RM3-class motors.
- SAN3-24H — Higher-current/HS motor configuration for RH1 applications; not the same controller configuration as standard SAN3-24.
- SAN3-40 — SAN3 controller for larger RM3 motor applications.
- SAN3-60H — SAN3 controller associated with RH3 high-torque motor configurations.
- SAN3-120T — Higher-capacity SAN3 controller for larger fastening tools.
- NFT-201RM1A-S — 20 Nm-class AFC1500 nutrunner associated with the RM1 family.
- NFT-301RM2A-S — 30 Nm-class nutrunner using the RM2 motor family.
- NFT-401RM1A-S — 39.2 Nm-class nutrunner associated with the AFC1500 SAN controller family.
Daiichi Dentsu’s current product information shows that several straight-type NFT tools formerly used with AFC1500 are also represented in the newer AFC3000 family, but the controller designation changes, so an AFC3000 controller should not be assumed to be a direct electrical replacement for SAN3-24.
Procurement Check
For a SAN3-24 replacement, provide the controller model together with the complete NFT tool/motor model, such as NFT-201RM1, NFT-301RM2, or NFT-401RM1. This is the most reliable way to prevent a servo-type mismatch after installation.
Also verify the nameplate revision, resolver cable, motor cable, AFC1500 configuration, and existing parameter set. The “24” in SAN3-24 identifies the controller family/configuration; it does not indicate a 24 VDC input.
The strongest technical documentation identifies SAN3-24 as an AFC1500 controller and provides the 3-phase 200–220 VAC supply, motor-class compatibility, RS485 communications, resolver feedback, and controller dimensions.
