Products Description
OPTIMATION STP301-4-0ER-0 LED Indicator Module

Module Feature
OPTIMATION STP301-4-0ER-0 is an industrial 4-LED status indicator module designed for OptiLogic wet bench and chemical delivery control cabinets. Powered by 12VDC, equipped with four independent multi-color LED lamps (red, green, yellow, blue). Each LED channel can be driven by discrete digital signals from OptiLogic I/O modules to display equipment running, standby, warning and fault status. Panel cutout mounting, compact metal housing with dust-proof front face. Widely used for local visual status indication of valves, pumps and safety interlock signals in semiconductor wet process systems.
Working principle: 12VDC power supplies the indicator board. Each LED channel is triggered by dry contact or 12V discrete signal from OptiLogic relay/digital output module. LED lights up to reflect real-time field equipment state for on-site operator observation. Onboard components: Indicator PCB, 4 multi-color LED lamps, terminal block for power and 4 signal inputs, metal front panel, mounting clips
LED indicators4 independent multi-color LED status lamps on front panel
Hardware self-diagnosisVisual inspection, LED lighting test per channel, input signal wiring continuity check
Programming softwareNo dedicated configuration software; controlled via OPTIMATION OL System Builder from OptiLogic I/O tags
Electrical & Process Parameters
Power supply:12VDC LED quantity:4 channels multi-color LED Single LED current:20mA per channel Input trigger:Dry contact / 12VDC discrete signal Mount type:Panel cutout mounting, optional DIN rail adapter
Mechanical & Structure
Mounting:Front panel cutout installation Protection class:IP65 front face
Environmental
Operating temperature:-20℃ ~ +60℃ Ambient humidity:5~95% non-condensing Certification:CE, UL, RoHS compliant Status:OPTIMATION industrial LED status indicator module
System compatibility
Compatible with OPTIMATION OptiLogic OL series I/O racks and OL2108, OL2109A relay/digital output modules; matched with OP series OptiMate operator terminals.
Function
STP301-4-0ER-0 indicator module manufactured by OPTIMATION. It provides local visual status display for wet bench field devices. Broken LED or loose signal wiring causes missing status indication. It is on-site visual alarm and status display component for chemical delivery automation cabinet.
Installation
Follow lockout/tagout safety procedure before installation. Cut panel opening and fix module with mounting clips. Wire 12VDC power and 4-channel discrete input signals from OptiLogic I/O module. Test each LED channel individually before production startup.
InterfaceTerminal block:12VDC power, 4 status signal input channels; 4 multi-color LED indicators on front panel of STP301-4-0ER-0.
Diagnostic
LED no light:Missing 12V power or no trigger signal. Single channel failure:Burnt LED or open signal wiring. Flickering LED:Unstable trigger signal or poor terminal contact. No channel response:Common ground wire disconnected.
Product Brief
STP301-4-0ER-0 OPTIMATION 4-channel LED indicator module,12VDC supply,multi-color LED,panel mount,for semiconductor wet bench and chemical delivery control cabinet equipment status and fault visual indication.