RELIANCE 0-51847-4 VLDE Voltage Level Detector Board

Technical SpecificationsModel:0-51847-4 Brand:RELIANCE Product type:VLDE Voltage Level Detector Board Weight:0.58kg Dimension:210mm135mm30mm Operating temperature:0℃ ~ 60℃ Storage temperature:-40℃ ~ +85℃ Relative humidity:5%~85%,non-condensing Certification:CE

System compatibility0-51847-4 is RELIANCE VLDE rack plug-in voltage level detector board. It is the upgraded iteration of 0-51847 / 0-51847-1 VLDD series,designed for Reliance MaxPak Plus series spindle DC drive rack,cooperates with CVTC sampling board and IRCP interlock relay board. It monitors armature voltage level and outputs fault trigger signal for spindle drive protection logic. Commonly used for maintenance and spare replacement of old industrial spindle DC drive equipment.

Function0-51847-4 is dedicated VLDE voltage level detector PCB for RELIANCE MaxPak Plus DC drive system. Receive scaled armature voltage feedback signal from CVTC board. Compare real-time voltage reading with preset bias threshold adjusted by front rotary bias dial. Output logic fault signal once voltage exceeds the preset level. Send interlock signal to IRCP relay board to cut off SCR firing pulses and trigger drive protection. Front panel red LED indicator to show fault energization status. Built-in optimized filter circuit to suppress transient voltage spike and reduce false protection trips. Terminal screw points for signal wiring and threshold configuration.

InstallationPower off the whole drive cabinet and cut main power supply. Insert 0-51847-4 VLDE board into drive rack slot and lock retaining screw. Connect gold finger backplane connector for internal signal exchange. Separate analog voltage sensing wiring from power pulse cables. Power on system,set voltage bias threshold via front rotary dial. Verify protection action when armature voltage exceeds preset level.

InterfaceBackplane edge connector,armature voltage feedback input,over-limit fault logic output,auxiliary power terminal,shield grounding terminal,red status LED indicator,front screw terminal block.

FeatureRELIANCE 0-51847-4 rack mount VLDE voltage level detector board. Discrete analog comparator circuit for voltage level detection. Front rotary bias dial for threshold adjustment,6 covered terminal screws on faceplate. Gold plated edge connector for reliable rack contact. Single red LED alarm indication for voltage fault status. 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.

DiagnosticFalse voltage protection trip:bias dial drift or transient spike interference; No fault output when overvoltage:comparator circuit damage; LED indicator not lighting:missing auxiliary power; Voltage threshold cannot be adjusted:potentiometer wear; Intermittent protection action:backplane pin oxidation and poor contact.

Product BriefRELIANCE 0-51847-4 is VLDE voltage level detector board. It receives armature voltage feedback signal,monitors preset voltage level threshold,generates interlock fault signal for Reliance MaxPak Plus legacy spindle DC drive voltage protection,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.