SDCS-REB-2

Product Overview

The SDCS-REB-2 Interface Board by ABB powers firing thyristors in drives with 2 to 4 parallel thyristors. Works with two +24 V power supplies and SDCS-REB-1 to send pulses to SDCS-PIN-41.

Key Features

• Isolation: Optocoupler breaks ground loops

• Drivers: Supports up to 4 forward and 4 reverse bridge pulse boards

• Power Supply Connectors: For +24 V and +48 V

• Monitoring: Isolated transistor output for voltage

Power Supply

• Configuration: Two +24 V supplies in series (e.g., NPSM-01, 24 V / 2 A)

Electrical Characteristics

• Current +24 V: 100 mA

• Current +48 V: 0.4 A per thyristor (1.6 A for 4)

• Voltage Ripple: Capacitance must keep ripple within +10% tolerance

• Grounding: 0 V terminal connected to mounting holes and grounded

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