ABB KVC758A124 3BHE021951R0124 tracks a comprehensive set of parameters: output current (0–1200 A, via external current transformers), IGBT/diode temperature (0–150 °C), input/output voltage (0–1000 V AC/DC), cooling system pressure (0–10 bar), and output frequency (0–400 Hz);
Measurement accuracy reaches ±0.5% for current/voltage and ±1 °C for temperature, with 16-bit data resolution—ensuring reliable detection of even minor parameter fluctuations.
Communication & Interface:
Equipped with Gigabit Ethernet (supports Profinet IRT, Ethernet/IP) for real-time data transmission to ABB ACS880 inverters or PLCs (e.g., ABB AC800M, Siemens S7-1500), with a transmission latency of ≤10 ms;
Includes an RS-485 port (Modbus RTU) for local configuration and a digital input/output interface (8 DI/4 DO) for connecting alarm devices or contactors.
Environmental & Electrical Ratings:
IP20 protection class (for cabinet mounting), operating temperature range of -10 °C to +60 °C, and relative humidity ≤90% (non-condensing);
Powered by 24 V DC (19.2–28.8 V DC wide range), with galvanic isolation (500 V AC/1 min) between channels to resist electromagnetic interference (EMI) in industrial settings.
Device Type: Digital input module for Westinghouse Ovation DCS
Core Function: Receive, filter, and process discrete digital signals; transmit data to the Ovation controller; perform real-time self-diagnostics
Input Characteristics:
Number of Input Channels: 16 discrete input channels (configurable as Normally Open/NO or Normally Closed/NC via Westinghouse Ovation Studio software)
Signal Type: 24 V DC (standard industrial voltage for discrete sensors)
Input Current: 5 mA per channel (typical)
Protection: Short-circuit protection (up to 30 V DC) and reverse polarity protection
Technical Specifications:
Communication Interface: Westinghouse Ovation backplane (compatible with Modbus RTU for secondary data transfer)
Power Supply: 24 V DC ±10% (powered by the Ovation DCS cabinet power module), power consumption ≤5 W
Diagnostics: Real-time self-diagnostics (channel fault detection, communication status monitoring) with LED indicators for fault visualization
Isolation: Channel-to-channel electrical isolation (500 V AC) to prevent cross-talk between signals
Operating Conditions:
Temperature Range: 0 °C to +60 °C (suitable for indoor control cabinets with forced ventilation)
Humidity Range: 5% to 95% RH (non-condensing)
EMI Resistance: Complies with EN 61000-6-2 (industrial environment standards)
Ingress Protection: IP20 (for installation in enclosed control cabinets)
Compatibility: Fully compatible with Westinghouse Ovation DCS; works with Westinghouse Ovation Studio software (for configuration/diagnostics) and discrete field sensors (e.g., proximity switches, limit switches).
Output Channels: 4 independent analog output channels, supporting channel-by-channel signal configuration
Signal Types: Current output (4-20 mA, 0-20 mA); Voltage output (0-5 V, 0-10 V, ±5 V, ±10 V)
Accuracy Class: ±0.05% of full scale (FS) for current signals; ±0.075% FS for voltage signals
Load Capacity: Maximum 600 Ω for current output; Minimum 10 kΩ for voltage output
Isolation Performance: 2.5 kVrms isolation between channels and between output and backplane; 500 Vrms isolation between channels
Power Supply: 24 V DC (19.2-28.8 V DC allowable range), power consumption ≤ 5 W
Operating Environment: Temperature -40°C to +70°C; Humidity 5%-95% (non-condensing); Protection Class IP20 (module body)
Response Time: ≤ 50 ms (from digital signal input to analog output stabilization)
Diagnostic Functions: Overload protection, short-circuit detection, and power supply undervoltage alarm; fault data transmitted to the control system via backplane
Mounting Method: DIN rail mounting (35 mm standard) or EMERSON DeltaV DCS backplane slot mounting
Communication Protocols: Supports dual-protocol functionality, including Profibus DP/V1 (slave/master mode) and Modbus RTU/TCP; compatible with ABB’s proprietary MasterBus 300 communication bus, enabling interoperability with ABB controllers (e.g., AC 800M, Advant Controller 450) and third-party devices.
Interface Configuration: 2 x Profibus DP ports (RS-485 physical layer, baud rate range 9.6 kbps ~ 12 Mbps), 1 x Ethernet port (RJ45, 10/100 Mbps, TCP/IP protocol stack) for Modbus TCP communication; 1 x MasterBus 300 interface (backplane connection) for integration with ABB control system chassis.
Data Transmission Capacity: Maximum Profibus DP node capacity of 124 slaves per port; Modbus TCP supports up to 64 concurrent client connections; data buffer size of 8 KB for input and 8 KB for output, ensuring efficient handling of high-volume real-time data.
Operating Environment: Operating temperature range -40°C ~ 70°C, storage temperature -40°C ~ 85°C; relative humidity 5% ~ 95% (non-condensing); vibration resistance 3 g (10 Hz ~ 500 Hz), shock resistance 25 g (11 ms, half-sine wave), compliant with IEC 61010-1 industrial safety standards.
Power Requirements: Input voltage 24 V DC (±10%), typical power consumption 6 W (full-load operation), standby power consumption ≤1.5 W; supports redundant power input to enhance system availability.
Device Type: Multifunctional protection relay for medium-voltage (3–35kV) power systems
Core Protection Functions:
Short-Circuit Protection: Three-stage overcurrent protection (instantaneous, time-delayed instantaneous, overcurrent) with adjustable setting range 0.5–20×CT rated current and operating time 0.01–10s
Overload Protection: Inverse-time or definite-time selectable, setting current 1.0–1.5×rated current, operating time 1–120s
Voltage Protection: Overvoltage protection (105–120% rated voltage), undervoltage protection (80–95% rated voltage), operating time 0.1–10s
