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PA 1508 Digital I/O board

PA 1508 Digital I/O board

Quick Overview

Digital I/O board, optically isolated, 16 digital inputs/outputs, 24 V
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Details

Features
  • 8 digital inputs, 24 V, isolated
  • 2 connection lines per input
  • Parallel acquisition of digital 24 V signals
  • Each input channel has its own ground line
  • 8 digital outputs, 24 V, isolated
  • Each output channel can be triggered independently from the others
  • The output channels are current-limited and suitable for loads with high inductive currents
  • 2 diagnostic outputs generate LOW level at overtemperature
  • Watchdog: can be activated through software, readable
  • After power-on the outputs are reset to “0”
  • Addressing through DIP switches
Safety features
  • Optical isolation 1000 V
  • Voltage supervision
  • Creeping distance IEC 61010-1 (VDE411-1)
  • Safety for the inputs: voltage reversal protection,
  • LC filters
  • Safety for the outputs: Overtemperature protection: Shut-down logic at approx. 125-140 °C; Short-circuit current at 1.5 A; Shut-down logic, when the external supply voltage drops below 5 V.
  • Safety features for the ext. supply voltage: Overload protection: Self-resetting fuse (electronic fuse); Overvoltage protection through varistors and transorb diodes; screened through LC filters
Applications
  • Industrial I/O control
  • Automatic test equipment
  • Interface to electromechanical relays
  • Monitoring of 24 V signals
  • Activation of alarm
  • Signal switching
  • ON/OFF monitoring of motors, lights...
  • Machine interface

Specifications

Digital inputs
Number of inputs: 8 (separate grounds)
Optical isolation: through optical couplers, 1000 V from the PC to the peripheral
Optical isolation: Input channels separated from the others
Nominal voltage: 24 V
Inputs current at 24 V: 6 mA typ.
Logic input level:      U nominal:       24 V
                                    UH max:       30 V
                                    UH min.:       19 V
                                    UL max.:       14 V
                                     UL min.:         0 V
Signal delay: 70 μs (at 24 V)
Maximum input frequency: 5 kHz (at 24 V)

Digital outputs
Outputs: 8
Optical isolation: through optical couplers, 1000 V
Output type: High-side (Load at ground) acc. to IEC 1131-2
Nominal voltage: 24 V
Supply voltage: 10 to 36 V, min. 5 V (through front connector)
Max. current for 8 outputs: 3 A typ.
Output current/channel: 500 mA typ./channel
Output current for 8 channels: 350 mA typ./channel
Short-circuit current/Shut-down at 24 V, Rload < 0.1W: 1.5 A
RDS ON resistance: 0.4 W max.
Switch-on time: l out=0.5 A, Load = resistance: 120 μs
Switch-off time: l out=0.5 A, Load = resistance: 40 μs
Overtemperature (Shut-Down): 170 °C (Output driver)
Temperature hysteresis: 20 °C (Output driver)

Physical and environmental conditions

Dimensions: 125 x 91 mm
System bus: ISA
Place required: Short board, 1 AT or XT slot
Operating voltage: +5 V, ± 5 % from PC
Current consumption: 30 mA typ.
Front connector: 37-pin SUB-D male connector
Temperature range: 0 to 60 °C (with forced cooling)

Availability: Stock Item

 

Components / Downloads

For further information, technical advice, or a quotation please call or email us. If you are not sure which product you need one of our technical sales advisors will be happy to discuss your application. We also accept company purchase orders by fax or post. Credit card orders can also be placed over the phone for any product.

REF DESCRIPTION DOWNLOADS PRICE ORDER ITEM
 
PA1508 Digital I/O Board
PA1508
PA1508
8 inputs and 8 outputs, 24V, optically isolated, isolation between all input channels, high-side driver outputs 500 mA, for each channel, watchdog, short-circuit protection
View FileDatasheet
   Size: (447.79 KB)
£261.22
or call us for a quote
 
Screw Terminal Panels
PX901-DG
PX901-DG
Screw terminal panel with LEDs, for the connection of 37 signal lines for digital boards with housing for installation on a DIN rail. Not suitable for 5V option.
£130.20
or call us for a quote
 
Connection Cables
ST010
ST010
Standard Shielded Round Cable. 37-pin SUB-D female connector / 37-pin SUB-D male connector, twisted-pair conductors. 2m cable length.
£80.21
or call us for a quote
ST011
ST011
Standard Shielded Round Cable. 37-pin SUB-D female connector / 37-pin SUB-D male connector, twisted-pair conductors. 5m cable length.
£82.96
or call us for a quote
ST010-S
ST010-S
Standard Shielded Round Cable. 37-pin SUB-D female connector / 37-pin SUB-D male connector, twisted-pair conductors for high current with a separate connection for 24V voltage supply. 2m cable length.
£84.49
or call us for a quote