ABB 1SAP210400R0001 (TU504-FBP) spring‑type FBP terminal unit_Ningde Androld Automation Equipment Co.,Ltd.

May 29, 2026

ABB 1SAP210400R0001 (TU504-FBP) spring‑type FBP terminal unit

1SAP210400R0001 corresponds to TU504-FBP, a spring‑type FBP terminal unit for the ABB S500 distributed I/O system and AC500 PLC series. It serves as a compact mounting and connection base for FBP interface modules, providing tool‑free spring terminals for field wiring. It supports hot‑swap of FBP modules and ensures stable power distribution and signal transmission in industrial control systems.

Description

Product Introduction

Model Explanation

1SAP210400R0001 is the standard ABB part number. TU504-FBP is the type designation: TU = Terminal Unit, 504 = compact spring‑terminal variant, FBP = FieldBus Plug‑in interface. The segment 210400 denotes the compact S500 FBP terminal unit platform with spring terminals, and R0001 indicates the initial hardware revision. It is a passive base unit that operates with FBP interface modules instead of functioning independently.

Technical Parameters

Power Supply: 24 V DC
Terminal Type: Spring‑type (tool‑free)
I/O Interface: M12 FBP connector, 16‑pin spring terminal block
Protection Degree: IP20
Operating Temperature: 0 °C to +60 °C
Storage Temperature: -40 °C to +70 °C
Weight: Approx. 0.20 kg
Mounting: Standard DIN rail
Certification: CE, RoHS compliant
Compatibility: AC500 V2/V3 PLCs, S500 FBP interface modules

Interface and Communication Configuration

This base unit has no independent communication function. It is equipped with an M12 FBP interface for connecting FBP modules and a 16‑pin spring terminal block for field wiring. Internal circuits distribute 24 V DC power and signal lines. After installation, it connects to the AC500 internal bus to facilitate data exchange between the PLC and field devices. All connections follow standard FBP pin definitions with no extra configuration required.

Core Functions

Provides compact mechanical mounting and electrical termination for S500 FBP interface modules.
Uses spring terminals for fast, tool‑free field wiring to improve installation efficiency.
Supports hot‑swap of FBP modules during operation, minimizing system downtime.
Distributes 24 V DC power and signals stably to peripheral sensors and actuators.
Delivers electrical isolation and vibration resistance for harsh industrial conditions.
Enables space‑saving integration into AC500‑based control systems.

Application Scenarios

Industrial automation systems using ABB AC500 PLC and S500 distributed I/O.
Compact machinery, small production lines, and panel‑mounted applications requiring space‑saving design.
Building automation, HVAC, and light process control systems.
Distributed control networks with FBP interfaces for machine‑to‑machine communication.
New project deployment and legacy system retrofits with limited cabinet space.

Usage and Maintenance Instructions

Mount on standard DIN rail in a ventilated control cabinet, avoiding direct sunlight and moisture.
Connect 24 V DC power to designated terminals, ensuring correct polarity.
Insert the FBP interface module into the TU504-FBP base and secure it.
Wire field devices to spring terminals per the module’s pin assignment, ensuring proper insertion.
Inspect terminal connections and connector integrity regularly; clean dust buildup periodically.
Use only compatible FBP modules; avoid excessive force on spring terminals to prevent damage.
In case of faults, check power supply and module connections first; replace damaged modules as needed.

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