PCI-7250

8/16/24/32 Channels Relay Actuator and Isolated...

  • The PCI-7250 provides 8 electro-mechanical relays and 8 opto-isolated digital inputs on a PCI board
  • The relays are configured as 4 ea. Form C Type (SPDT) and 4 ea. Form A Type (SPST)
  • The DI channels can be used to monitor the status change of the relays, external result of the relay activation or any other (on-off) voltage state that meets the monitoring specification

DESCRIPTION:

The half size board allows software control of the eight electromechanical relay outputs which are addressed as/with a single I/O byte.

Four of the relays are Form C contacts (Normally Open and Normally Closed) and the remaining relays are Normally Open. Eight LEDs indicates each relay's ON/OFF status.

The 8 opto-isolated D/I channels are used for sensing digital inputs and provide 1,000VD C for isolation can be configured as AC Filter or Non-AC Filter by jumper settings.

GENERAL SPECIFICATIONS:

      • Relay Output
      • Number of relays: 8
      • Relay type: Single-pole, double-throw (SPDT)
      • Output channels
      • Relay # 0~3 are Form C (includes normally open and close contacts)
      • Relay # 4~7 are Form A (includes normally open only)
      • LED indicates each relay's ON/OFF status for monitoring
        • Contact Type: 120VAC @ 0.5A or 24VDC @ 1A
        • Contact resistance: Bifurcated
      • Relay ON/OFF time: 8 ms typical

      • Coil voltage: +5V @ 33mA for each relay

      • Isolated Inputs

      • Number of channels: 8

      • Photo isolators: PC-814

      • Input signal type: AC or DC

      • AC: no polarity

      • DC: with polarity

      • Input voltage range: 0 ~ 24VDC or 24VAC 50 ~ 1,000Hz

      • Input Logic Level

      • Logic Low: 0~2.4V

      • Logic High: 3~24V

      • Input filters: RC low pass filter

      • Input impedance: 1.2 KΩ

      • Isolation voltage: 5,000 V rms channel-to-system

      • power/ground

      • Response time

      • 20 µsec without AC Filter

      • 2.2 ms with AC Filter

    • Enviromental Specifications

    • Operating temperature: 0° ~ 60°C

    • Storage temperature: -20° ~ 80°C

    • Humidity: 5~90%, non-condensing

    • Power requirement

      • PCI-7250  +5V: 140mA typical

      • PCI-7251  +5V: 125mA typical

    • Dimension

      • PCI-7250: 162 mm x 107 mm

      • PCI-7251: 141 mm x 102 mm

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