Products Description
RELIANCE 0-52803-2 FVCC Frequency to Voltage Converter Board

Technical SpecificationsModel:0-52803-2 Brand:RELIANCE Product type:FVCC Frequency to Voltage Converter Board Weight:0.52kg Dimension:210mm135mm30mm Operating temperature:0℃ ~ 60℃ Storage temperature:-40℃ ~ +85℃ Relative humidity:5%~85%,non-condensing Certification:CE
System compatibility0-52803-2 is RELIANCE rack plug-in FVCC frequency to voltage converter board. It is upgraded variant of 0-52803,designed for Reliance MaxPak Plus series spindle DC drive rack,cooperates with ARM armature regulator board. It receives pulse type tachometer signal,converts frequency signal into analog DC voltage for speed closed-loop control. Commonly used for maintenance and spare replacement of old industrial spindle DC drive equipment.
Function0-52803-2 is dedicated FVCC frequency to voltage converter PCB for RELIANCE MaxPak Plus DC drive system. Receive pulse frequency signal from pulse tachometer encoder. Complete frequency filtering and frequency-to-voltage conversion,output analog speed feedback signal to armature regulator board. Equipped with three potentiometers on board for gain,offset and range calibration. Dual LED indicators display board power supply and valid pulse input status. Built-in input overvoltage and surge protection to protect circuit from pulse signal spike damage.
InstallationPower off the whole drive cabinet and cut main power supply. Insert 0-52803-2 FVCC board into drive rack slot and lock retaining screw. Connect gold finger backplane connector for internal analog speed signal transmission. Separate tachometer pulse field wiring from high power pulse and analog control cables. Power on system,calibrate gain and offset via potentiometers. Verify analog output voltage changes synchronously with motor pulse frequency.
InterfaceBackplane edge connector,pulse tachometer frequency signal input,converted analog speed feedback output,auxiliary power terminal,shield grounding terminal,dual status LED indicators,multi-turn calibration potentiometer bank.
FeatureRELIANCE 0-52803-2 rack mount FVCC frequency to voltage converter board. Frequency to analog voltage conversion circuit for pulse tachometer. Multiple onboard potentiometers for gain and zero adjustment. Surge and overvoltage protection for pulse input channel. Gold plated edge connector for reliable rack signal transmission. Dual LED visual indication for power and pulse signal state. Industrial PCB design for long continuous running in harsh factory environment. Discontinued obsolete board,supply only for old Reliance MaxPak Plus DC drive system spare replacement. Suitable for metallurgy,paper-making production line spindle DC drive renovation and maintenance.
DiagnosticMotor speed jitter:pulse signal attenuation or potentiometer drift; No speed feedback:pulse wiring open or conversion circuit damage; LED no light:board auxiliary power loss; Speed signal noise:lack of shielding or ground interference; Intermittent speed fluctuation:backplane pin oxidation and poor contact.
Product BriefRELIANCE 0-52803-2 is FVCC frequency to voltage converter board. It captures pulse tachometer frequency signal and converts to analog DC speed feedback signal for Reliance MaxPak Plus legacy spindle DC drive speed closed-loop regulation,widely used as spare part for legacy DC drive equipment maintenance.

Disclaimer:All parameters are for reference only and not the basis of quotation. Goods are scarce,overseas delivery lead time 3-7 working days. It is only used for equipment maintenance and retrofit.