WP-8000-EX series switch input isolation safety barrier (with power distribution)

WP-8000-EX series switch input isolation safety barrier, receives the switch or proximity switch signal from the dangerous area, through the safety barrier isolation, converts it to the relay contact output and transmits it to the safe area.

　　 This isolated safety barrier requires independent power supply, electromagnetic isolation between the power supply-input circuit-output circuit.

◆ Features

　　● Dry contact switch input.

　　● Proximity switch input (in line with NAMUR/DIN 19234 standard).

　　● Relay changeover contact output, or optional transistor, TTL level output.

　　● With line fault detection function.

　　● With working power indicator; output status indicator.

　　● Intrinsically safe input circuit [Exia]IIC.

　　● Plug and unplug terminal blocks, DIN rail card installation.

　　● Working power

　　 Power connection: independent terminal 13 -, 14 +, can be plugged and unplugged

　　 Power supply voltage: (20～30) VDC

　　Current consumption: at 24V DC, <25mA (one in and 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 to the sensor: from 1KΩ, 4.5V～9.0V

　　　　 switch threshold: 1.5mA

　　● Output signal (safe area)

　　　　 output channel: relay contact

　　　　Relay characteristics: Response time: 10ms

　　　　 contact power: 24VDC, 2A, resistive load

　　　　Relay type: Single pole changeover relay

　　　　 Note: The resistance load must be suppressed

　　● Input/output characteristics

　　 Normal (reverse phase) phase:

　　☆If Iin> 2.1mA or Rin <2KΩ, the relay contact output is excited

● Power supply

　　 Power connection: independent terminal 13 -, 14 +, can be plugged and unplugged

　　 Power supply voltage: (20～30) VDC

　　Current consumption: at 24V DC, <25mA (one in and one out)

　　＜50mA (two in and two out)

　　 Power indicator: power on, LED light on: green

● Input signal (Exia IIC dangerous area)

　　Input switch type: switch, NAMUR type proximity switch

　　 Voltage to the sensor: from 1KΩ, 4.5V～9.0V

　　 switch threshold: 1.5mA

● Output signal (safe area)

　　 output channel: relay contact

　　 Relay characteristics: Response time: 10ms

　　 Contact power: 24VDC, 2A, resistive load

　　Relay type: Single pole changeover relay

　　 Note: The resistance load must be suppressed

● Input/output characteristics

　　 Normal (reverse phase) phase:

　　☆If Iin> 2.1mA or Rin <2KΩ, the relay contact output is excited and the yellow LED light is on (not excited, the LED light is off)

　　☆If Iin <1.2mA or Rin> 10KΩ, the relay contact output does not excite the yellow LED light is off (when excited, the LED light is on)

　　 Hysteresis: 200μA typical

● Line fault detection (LFD)

　　User-selectable red LED light shows whether the line is faulty. When the line is faulty, the red LED light is on and the relay is not activated. Iin<100μA, open circuit alarm; Iin>250μA, open circuit will not alarm Rin<100Ω, short circuit alarm; Rin>360Ω, short circuit will not alarm Note: When using the LFD function, the switch contact input must be connected to two circuits for detection resistance. 500Ω～1KΩ connected in series with switch; 20KΩ～25KΩ connected in parallel with switch

● Reversal setting (user selectable)

● Isolation performance

　　 Insulation resistance: ≥100MΩ/500V DC (AC)

　　 Isolation capacity: 2500VAC/1 minute 50Hz

　　 Maximum explosion-proof voltage: 250VAC

　　Anti-electromagnetic compatibility: in line with IEC 61000 related anti-electromagnetic standards

● Environmental parameters

　　Working temperature: (-20～＋60)℃

　　Storage temperature: (-40～＋80)℃

　　Environmental humidity: (5～＋95)%RH (no condensation)

● Structure

　　 Clip-on type; Modular watch core; ABS material case; Plug-in terminal

　　 Machine weight: about 110g

● Safety and explosion-proof certification parameters

　　The whole machine meets GB3836.1-2000 and GB3836.4－2000]

　　 Standard related requirements

　　Explosion-proof grade mark: [Exia]IIC

　　Safety certification parameters:

　　　　 Um: 250V Uo: 11V Io: 15mA

　　　　Po: 41.2mW Lo: 10mH Co: 1.4μF