ABB 3BHE021951R0124 Interface Module

ABB 3BHE021951R0124 Full English Product Specification
Basic Product Information
Brand: ABB
Model / Order Part No.: 3BHE021951R0124
Product Name: KVC758 Dual-Channel Analog Signal Interface Module
Place of Origin: Sweden
HS Code: 8538909200
Compatible System: ABB S800 I/O, AC800M / 800xA DCS System
Mounting: Rack plug-in slot installation, IP20

Physical Specifications
Overall Dimension: 150 mm (L) × 100 mm (W) × 60 mm (D)
Net Weight: 0.26 KG
Housing: Metal shielded PCB with plastic front panel
Wiring Interface: Front pluggable spring terminal block for field signal wiring
Indicator: Independent LED for power, channel running and fault alarm
Electrical Input Specifications
1. Rack Backplane Power Input: 24 VDC ±10%, power consumption ≤8 W
2. Field Analog Input Channels: 2 isolated channels
3. Supported Input Signal Ranges: 4–20mA, 0–10VDC
4. Sampling Rate: Max 100Hz per channel
5. Isolation Voltage: 2500 Vrms between field circuit and backplane bus
6. Operating EnvironmentWorking Temperature: -25°C ~ +70°C
Storage Temperature: -40°C ~ +85°C
Humidity: 5%–95% non-condensing
7. Shock & Vibration: 1g (10–500Hz vibration), 25g impact resistance
Signal & Communication Output Interfaces
1. Analog Control Output Channels: 2 channels, configurable 4–20mA / 0–10VDC
2. S800 Internal Bus Output: 12Mbps proprietary rack bus for digital data transmission to controller
3. Channel Fault Diagnostic Output: LED visual feedback for open circuit, short circuit, overvoltage
4. Calibration Signal Output: Reserved internal calibration pin for periodic precision correction
5. Collective Fault Digital Flag Output: Fault signal transmitted to upper DCS logic
Core Technical Parameters
Conversion Resolution: 12-bit
Full Scale Accuracy: ±0.1% FS
Isolation Mode: Per-channel optical galvanic isolation
Hot Swap Support: Yes
Communication Rate: 12Mbps S800 rack bus
Channel Protection: Overvoltage, short-circuit automatic lockout protection