PCI-7250/51
8/16/24/32-channel Relay Actuator & Isolated Digital Inputs
"Fully compatible with ACL-7125/7225 Series"


Description

The PCI-7250 provides 8 electro-mechanical SPDT relays and 8 opto-isolated digital inputs on a compact board.

The 8 electro-mechanical relay outputs are addressed as 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. A red LED indicates each relay's ON/OFF status for monitoring.

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

The optional PCI-7251

PCI-7251 is an 8 relay and 8 Isolated Digital Inputs extension board for PCI-7250. All the functionality of PCI-7250 are the same as PCI-7250, but the PCI-7251 must be connected with PCI-7250 and all bus interfacing is controlled by PCI-7250. Up to 3 PCI-7251s can be connected to one PCI-7250, While extending the PCI-7250's DIO from 8 Di & DO to 16/24/32 DI & DO.

This design is very cost effective when an the application needs many DIO channels. Because of the the 32 bit PCI bus architecture 32 digital inputs or 32 digital outputs can be accessed in one instruction.

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Features

  • 8 relay actuator outputs
  • 8 opto-isolated digital inputs
  • LEDs indicate the energized relays
  • Inputs jumper selectable for AC/DC isolated input
  • On-board relay driving circuits
  • On-board digital input signal conditioning circuits
  • Register structure compatible with ACL-7125/PCI-7225 Series

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Specifications

Relay Outputs

  • Relay type : single-pole double-throw (SPDT)
  • Contact rating : 120 VAC @ 0.5 A or 30 VDC @ 1 A
  • Breakdown voltage : 300 V Peak AC/DC min.
  • Relay on/off time : 5 msec. typical
  • Relay Current : +12 V @ 33 mA for each relay

 

Isolated Inputs

  • Opto-Isolator : PC-814
  • Input Channels : 8
  • Input Signal :
    AC, don't care polarity
    DC, don't care polarity
  • Input Voltage : : 5~24 VDC or AC, 50 ~ 1,000 Hz
  • Input Impedence : : 1.2 Kohm
  • Isolation Voltage :
    1,000 V    DC channel-to-channel and channel to ground
  • Response Time :
    20 µsec without AC Filter,
    2.2 ms with AC Filter

 

Physical, Environmental

  • Operating temperature : 0°C ~ 60°C
  • Storage temperature : -20°C ~ 80°C
  • Humidity : 5 ~ 95%, non-condensing
  • Power consumption : +5V @ 200 mA, typical
  • Dimensions : half- size, only 111 (H) x 183 (L) mm

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Ordering Information

PCI-7250 : 8 Relay and 8 Isolated DI

PCI-7251 : Extension Board for PCI-7250

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