ABB FFVO142 (Order Number: 3BSE223732R0001)
I. Basic Information
Product Type: High Precision Tension Signal Conditioning / Excitation Amplification Unit (belongs to ABB Advant Master Paper Tension Control System spare parts, often mistakenly written as PFVO142)
Core Function: Specifically designed for tension sensors (PFTL101, PFVL141 series head-type tension meters) used in papermaking, film production, and metallurgical strip production lines, providing precise excitation power supply, weak weighing signal amplification, isolation conversion, converting the millivolt-level weak signals from the sensors into 4-20mA analog signals for input into the DCS tension controller, achieving constant tension closed-loop control for rolls.
Core Functions
High-precision sensor excitation power supply: Providing a stable constant voltage excitation power supply for bridge-type tension strain gauges, suppressing temperature drift, and ensuring long-term measurement stability of tension
Weak signal amplification and filtering: Performing differential amplification and hardware filtering on the mV-level weak output of the sensors, resisting interference from on-site frequency converters and motors with strong electromagnetic fields
Standardized analog signal conversion: Outputting isolated 4-20mA industrial standard current signals for remote transmission to the upper-level tension control card
Short-circuit, overload fault diagnosis: Equipped with fault alarm contacts when the sensor is short-circuited, disconnected, or has abnormal power supply, and can be connected to PLC for fault interlock
Signal isolation protection: Electrical isolation of input, output, and power supply, avoiding ground loop interference that causes tension drift
Electrical Specifications
Power Supply: 24VDC DC power supply
Sensor excitation output: Precise stabilized excitation (compatible with bridge-type strain tension sensors)
Signal Input: Differential mV-level tension sensor signal
Standard Output: Isolated 4-20mA analog signal
Communication: RS485 Modbus RTU, capable of uploading tension real-time values, fault codes, and calibration parameters
Operating Temperature: -25℃ to +70℃
Protection Grade: IP20 (stainless steel protective housing, wall-mounted installation)
Installation Method: On-site wall-mounted installation, suitable for humid and dusty working conditions in papermaking workshops
Typical Matching Hardware
Tension Sensors: PFTL101A, PFTL101B, PFVL141 series head-type tension meters
System Control Card: PFSK152, PFVI401, PFXA401 tension main control module
Upper-level System: ABB Advant Master DCS system
Distinction of Similar Models in the Same Series
FFVO142 (3BSE223732R0001): Single-channel tension signal amplification + excitation unit, mainstream in-use model in the papermaking industry
PFVO143: Dual-channel tension signal conditioning module, capable of simultaneously connecting two tension sensors
PXUB201: General-purpose isolation signal amplifier, without dedicated sensor excitation function, cannot directly replace this model
Typical Application Scenarios
Constant tension control for paper machines, rewinding machines, coating machines
Film production, lithium battery anode sheet, metal strip production line
Textile, aluminum foil roll winding tension closed-loop control system
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