Description
Technical Specifications: Nominal power supply:24 VDC Insulation voltage:1500 VAC Operating temperature:0 ℃ ~60 ℃ Storage temperature:-40 ℃ ~85 ℃ Relative humidity:5% ~95% non-condensing
Functional Features: Multi-channel screw terminals for field cable termination. Built-in surge suppression circuit. EMI filter reduces high-frequency electromagnetic interference. LED power status indicator. Support hot swap of matched I/O modules. Reserved signal test points. DIN rail quick mounting.
Application Scenarios: Thermal power plant auxiliary equipment monitoring, petrochemical refining process control, metallurgical equipment interlock monitoring, paper mill production line control, sewage treatment automatic control system.
Performance Parameters: Terminal contact resistance less than 10 milliohm Vibration resistance:10 Hz~150 Hz,0.5g Shock resistance:10g peak,11ms MTBF: 209000 hours
Material Composition: Housing: UL94-V0 flame retardant plastic. Terminal screws: nickel-plated brass. PCB: FR4 glass epoxy substrate. Protection components soldered on circuit board. Mounting spring clip: stainless steel.
Structural Features: 35mm DIN rail snap installation. Front panel equipped with screw terminals and channel marking area. Upper card slot for I/O card insertion. Anti-misplug positioning buckle. Dust-proof grooves molded on shell surface.
Working Principle: Field instrument signals connect to screw terminals on front panel. Signals pass through built-in filter and surge protection circuits, then transmit to I/O card mounted on the base. I/O card converts analog or digital signals into digital data and uploads data to Ovation controller. The terminal base distributes 24V DC power for field signal loops.
Installation Requirements: Mount on standard 35mm DIN rail. Keep 20mm vertical ventilation space. Separate signal cable and high voltage power cable routing. Terminal screw torque 0.6~0.8 N·m. Cut off power before wiring operation.
Precautions for Use: Do not install in corrosive gas environment. Anti-static wristband required when touching internal circuit components. Inspect terminal tightness periodically. Disconnect all field wiring before removing the terminal base.
