TSDI-1624 Safe Digital Input FTA (24 V DC, 16 Channels)

Overview: The TSDI-1624 module is a field termination assembly (FTA) designed for safe digital input conversion in industrial control systems. It serves as an interface between the system interconnection cable (SICC-0001/Lx) and external field wiring via screw terminals.

Key Features:

• Interface Compatibility: Connects with a redundant pair of SDI-1624 modules.
• Hazardous Locations: Suitable for use in 'Class I, Division 2 Hazardous Locations'.
• Short Circuit Protection: Includes a Positive Temperature Coefficient (PTC) resistor to handle short circuits to 0 Volt, preventing loss of all 16 channels in case of a single short circuit.

Technical Data:

General:

• Type Numbers: FS-TSDI-1624, FC-TSDI-1624
• Approvals: CE, TUV, UL, CSA, FM

Input:

• Number of Input Channels: 16
• Input Voltage: 24 V DC, -15% to +30%
• Input Current: ≤ 15mA at 24 V DC (with a redundant pair of SDI-1624 modules as load)
• PTC Resistance: 260Ω ±25% at 25°C
• PTC (Steady) Current: Typically 45 mA ±35% at 24 V DC

Physical:

• Module Dimensions: 90 × 70 × 58 mm (3.54 × 2.76 × 2.28 in)
• DIN EN Rails: TS32 / TS35 × 7.5
• Used Rail Length: 91 mm (3.58 in)
• Weight: 0.2 kg

Termination:

• Screw Terminals:
  • Max. Wire Diameter: 2.5 mm² (AWG 14)
  • Strip Length: 7 mm (0.28 in)
  • Tightening Torque: 0.5 Nm (0.37 ft-lb)

The TSDI-1624 is a versatile FTA module offering 16 channels for safe digital input conversion, compatible with hazardous locations and featuring robust short circuit protection.