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WP-8000-EX series switch input isolated safety barrier (with power distribution)
The WP-8000-EX series switch input isolation safety barrier receives switch or proximity switch signals from hazardous areas, isolates them through th
Product details
The WP-8000-EX series switch input isolation safety barrier receives switch or proximity switch signals from hazardous areas, isolates them through the safety barrier, and converts them into relay contact outputs to be transmitted to the safe area.
This isolated safety barrier requires independent power supply, with electromagnetic isolation between the power supply input circuit output circuit.
◆ Characteristics
● Dry contact switch input.
● Proximity switch input (compliant with NAMUR/DIN 19234 standard).
Relay conversion contact output, or optional transistor or TTL level output.
● Equipped with line fault detection function.
Equipped with a working power indicator light; Output status indicator light.
● Intrinsic safety input circuit [Exia] IIC.
● Plug and unplug terminal block, DIN rail card installation.
● Working power supply
Power wiring: independent wiring terminals 13-, 14+, can be plugged and unplugged with power on
Power supply voltage: (20-30) VDC
Current loss:<25mA at 24V DC (one in one out)
＜ 50mA (two in and two out)
Power indicator: Power on LED light on: green
● Input signal (Exia IIC hazardous area)
Input switch type: switch, NAMUR type proximity switch
Voltage for sensor: starting from 1K Ω, 4.5V to 9.0V
Switch threshold: 1.5mA
● Output signal (safe zone)
Output Channel: Relay Contact
Relay characteristics: Response time: 10ms
Contact power: 24VDC, 2A, resistive load
Relay type: Single pole conversion relay
Attention: Resistive loads must be suppressed
● Input/output characteristics
Normal (inverted) phase:
If Iin>2.1mA or Rin<2K Ω, the relay contact output is excited
● Working power supply
Power wiring: independent wiring terminals 13-, 14+, can be plugged and unplugged with power on
Power supply voltage: (20-30) VDC
Current loss:<25mA at 24V DC (one in one out)
＜ 50mA (two in and two out)
Power indicator: Power on LED light on: green
● Input signal (Exia IIC hazardous area)
Input switch type: switch, NAMUR type proximity switch
Voltage for sensor: starting from 1K Ω, 4.5V to 9.0V
Switch threshold: 1.5mA
● Output signal (safe zone)
Output Channel: Relay Contact
Relay characteristics: Response time: 10ms
Contact power: 24VDC, 2A, resistive load
Relay type: Single pole conversion relay
Attention: Resistive loads must be suppressed
● Input/output characteristics
Normal (inverted) phase:
If Iin>2.1mA or Rin<2K Ω relay contact output is excited, the yellow LED light will turn on (not excited, the LED light will turn off)
If Iin<1.2mA or Rin>10K Ω relay contact output does not excite, the yellow LED light will turn off (excited, LED light will turn on)
Hysteresis: Typical value of 200 μ A
Line Fault Detection (LFD)
The user can select the LED red light to display whether the circuit is faulty. When the circuit is faulty, the LED red light will turn on and the relay will not be activated. Iin<100μA， Open circuit alarm; Iin>250μA， Open circuit will not alarm Rin<100 Ω, short circuit alarm; Rin>360 Ω, short circuit will not alarm. Attention: When using LFD function, two lines must be connected to detect the resistance when the switch contact is input. Connect 500 Ω to 1K Ω in series with the switch; Connect 20K Ω~25K Ω in parallel with the switch
● Reverse setting (user selectable)
● Isolation performance
Insulation resistance: ≥ 100M Ω/500V DC (AC)
Isolation capability: 2500VAC/1 minute 50Hz
Maximum explosion-proof voltage: 250VAC
Electromagnetic compatibility: Complies with relevant electromagnetic standards of IEC 61000
● Environmental parameters
Working temperature: (-20~+60) ℃
Storage temperature: (-40~+80) ℃
Environmental humidity: (5~+95)% RH (without condensation)
● Structure
Card mounted type; Modular watch core; ABS material casing; Plug in terminal
Whole machine weight: approximately 110g
● Safety and Explosion proof Certification Parameters
The whole machine meets the requirements of GB3836.1-2000 and GB3836.4-2000
Standard related requirements
Explosion proof grade mark: [Exia] IIC
Security authentication parameters:
Um: 250V Uo: 11V Io: 15mA
Po: 41.2MW Lo: 10mH Co: 1.4 μ F
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