ACL-7225
16-Channel Relay Actuator & Isolated D/I Card
1000 VDC Input Isolation !!


Description

The ACL-7225 is an extension version of ACL-7125. It provides 16 electro-mechanical relays for output actuation and 16 isolated digital inputs. It can plug directly into an AT-bus slot of any IBM PC or compatibles.

The 16 electro-mechanical relay outputs are addressed as two I/O bytes. Eight of the relays (outputs 0~4 and 8~12) are Form C contacts (normal open and normal closed) and the remaining relays are Form A (normal open only). A LED indicates each relay's ON/OFF status for monitoring.

The 16 opto-isolated D/I channels are used for sensing digital inputs and provide 1,000 VDC for isolation. Can be configured as AC filter or Non-AC filter by jumper settings.

I/O port Address Map

The ACL-7225 uses 4 consecutive I/O locations in the computer's I/O addressing space. The four registers are at Base Address +0, +1, +2 and +3. Register descriptions are listed in the table below.

BASE+0 relay output reg (RO0 ~ RO7) R/W
BASE+1 relay output reg (RO8 ~ RO15) R/W
BASE+2 relay output reg (DI0 ~ DI7) R
BASE+3 relay output reg (DI8 ~ DI15) R

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Features

  • 16 Relay Actuator Outputs
  • 16 Opto-Isolated AC or DC Polarity Free Digital inputs
  • LED's to Indicate the Energized Relays
  • Input Jumpers Selectable for AC_Filter/Non-AC_Filter
  • 1,000V DC Full Isolation
  • On-Board Relay Driving Circuits
  • On-Board Digital Input Signal Conditioning Circuits
  • 37-Pin D-Type Female Connector

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Application

- Industrial ON/OFF Control
- Signal Switching
- Digital Signal and Contract Status Monitoring
- External Relay Driving
- Alarm Activating

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Software

There are two software application programming alternatives for ACL-7225. The user can use either direct PORT I/O function or based on the DOS and Windows program libraries.

DOS Program Library/Windows DLL Drivers (ACLS-DLL1)
An extensive library of functions are available that support Microsoft C and Borland C/C++ under DOS environment. All the source codes and some demo programs are included for reference. A high performance Windows driver for Digital I/O functions are supported. It can be accessed from C, C++ and Visual
Basic under Windows 3.x environment.

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Specifications

Relay Outputs

  • Relay type : Single-Pole, Double-Throw (SPDT)
  • Output channels :
    16 (0-4 and 8-12 are Form C, 5-7 and 13-15 are Form A)
  • Contact rating : 120 VAC / 0.5 A or 24 VDC / 1 A
  • Contact type : Bifurcated
  • Contact resistance : 100Mohm max.
  • Relay ON/OFF time : 5 msec typical
  • Coil voltage : +12 V @ 33 mA for each relay

 

Isolated Inputs

  • Opto-isolator : PC-814
  • Input channels : 16
  • Input signal : AC, non-polarized, DC, non-polarized
  • Input voltage : 5~24 VDC or AC 50~1,000 Hz
  • Input impedance : 1.2 Kohm
  • Isolation voltage : 1,000VDC channel-to-channel and channel-to-ground
  • Response time : 20 ”sec without AC filter, 2.2 ms with AC filter

 

Physical/Environment

  • Operating temp : 0 ~ 60șC
  • Storage temp : -20 ~ +80șC
  • Humidity : 5~90%, non-condensing
  • Dimensions : 175mm (L) x 121mm (W)
  • Power consumption : +5 VDC @ 400 mA typical
    +12 V    DC @ 550 mA max., all relays are energized

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Ordering Information

ACL-7130 : Isolated 32 Digital I/O Card

ACLD-9138 : Daughter Board for ACL-7130

ACLS-DLL1 : Digital I/O DLL Driver

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