Name: FSCA-01 ABB RS-485 Adapter Module – Modbus RTU Drive Control, Fast Ship
SKU: FSCA-01
Price: 277.00 USD
Availability: InStock

Product details

FSCA-01 RS-485 Adapter Module by ABB

FSCA-01 lets ABB drives talk over Modbus RTU. This serial protocol is simple and strong. It fits legacy systems well. You get easy RS-485 drive control. Common single and multiple register read/write function codes work.

Technical Data – Tree View

Brand: ABB
- Model: FSCA-01
  - Type: RS-485 Adapter Module
    - Protocol: Modbus/RTU
    - Bus interface: Functionally isolated from drive
Mounting: Option slot of the drive
- Degree of protection: IP20
- Ambient conditions: As per drive manuals
Indicators: Three LEDs
- HOST, MODULE, NETWORK
Connectors:
- 20-pin connector to drive
- 4-pin detachable screw connector to bus
- 6-pin jumper block (2) for bus termination
Power supply: +3.3 V ±5%, max. 400 mA
- Supplied by the drive
EMC standard: EN 61800-3:2004
- PCB: Conformal coated
RS-485 link:
- Compatible devices: All RS-485 compliant devices
- Medium: Shielded twisted pair, 100…150 ohm
- Termination: 120 ohm built-in
- Topology: Trunk line, drop lines allowed
- Transfer rate: 9.6, 19.2, 38.4, 57.6, or 115.2 kbit/s
- Serial type: Asynchronous, half-duplex RS-485

Manager’s Insight

FSCA-01 is a proven bridge for old and new drives.
The built-in 120-ohm terminator saves parts.
Conformal coating protects the board in tough plants.
Three LEDs speed up fault finding.
We ship this module daily. Stock is steady.
It is a low-risk buy for retrofits.

Expert Review

The module is small but does a big job.
Setup is quick. Jumpers set termination in seconds.
Half-duplex RS-485 keeps wiring simple.
Isolation protects the drive from bus noise.
For Modbus RTU work, this is a solid pick.

Best Devices and Use Cases

Devices: ABB drives with option slots.
Use case 1: Legacy drive control over RS-485.
Use case 2: Modbus RTU networks in factories.
Use case 3: Simple drive control with low cost.
Works with: Any RS-485 compliant device.

FAQ

Q: Is the 120-ohm terminator built in?
A: Yes. You set it with the 6-pin jumper block. No extra parts are needed.
Q: Does the module need a separate power supply?
A: No. The drive supplies +3.3 V. Max draw is 400 mA.
Q: What cable should I use?
A: Use shielded twisted pair. Pick 100 to 150 ohm impedance for best results.
Q: Can I use drop lines?
A: Yes. The trunk line topology allows drop lines. Keep them short for clean signals.
Q: How do I know the module is working?
A: Check the three LEDs. HOST, MODULE, and NETWORK show status fast.
Experience note: Most users set the terminator once and forget it. Check jumper block 2 first if the bus is unstable.
Buying guide: Order one module per drive. Keep a spare for fast swaps. All units carry a 12-month warranty. Orders leave in 12 to 24 hours by FedEx, UPS, or DHL.