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View WRC Rockwell Automation
Encompass™ Partner Products
WRC Products:
DeviceNet CAN Bus
Extenders and Repeaters
Rockwell-AB Mounting
Boards and Cabling
1485 Exeter Dr., Akron, OH 44306
ph 330-733-6662 | fx 330-733-6663
products: sales@wrcakron.com
technical support: support@wrcakron.com
1781 Series Quad AC/DC input Discrete I/O Modules
(download this web page as a pdf catalog page)
General specifications
Operating temperature range –30 to +80°C
Storage temperature range –40 to +100°C
Isolation 4,000 V rms
Capacitance input to output 8 pF
Line frequency range 47 to 63 Hz
* @ nominal input voltage (ac)Application notes
- Do not install or remove modules in live (electrically hot) circuits. High voltage may be present.
- Input connections are non-polarized.
- The controlled voltage on the output pins (OUT 1,2,3, and 4) cannot exceed 3 V dc higher than +Vcc. This is a limitation of the reverse breakdown voltage of the status indicator LED's.
- An externally located diode (forward biased) can be installed in series with +Vcc 1 & 2 (pin 4) or +Vcc 3 & 4 (pin 11) of the module to extend the output control voltage to a maximum of 30 V dc. An externally located diode (forward biased) can be installed in series with the + terminal of a quad backplane to extend the output control voltage to a maximum of 30 V dc.
Quad AC/DC input module specifications by part number
INPUT
1781-IA5Q
1781-IM5Q
1781-IN5Q
Units
Nominal Input Voltage 120 240 24/48 Vrms/Vdc Minimum Input Voltage 90 180 10 Vrms/Vdc Maximum Input Voltage 140 280 60 Vrms/Vdc Maximum Input Current* 10 8 30 mA rms Drop Out Current 2.5 1.5 1 mA rms Allowable Off-state Current 3 2 1 mA rms Allowable Off-state Voltage 50 120 2 Vrms/Vdc OUTPUT
Nominal Logic Supply Voltage 5 5 5 V dc Minimum Logic Voltage 4.5 4.5 4.5 V dc Maximum Logic Voltage 6 6 6 V dc Typical Logic Supply Current* 10 10 10 mA dc Max. Logic Supply Current** 14.5 14.5 14.5 mA dc Max. Logic Sup. Leak. Currrent** 20 20 20 ľA dc Maximum Output Voltage 30 30 30 V dc Maximum Output Current 50 50 50 mA dc Max. Output Leakage Current** 20 20 20 ľA dc Max. Output Voltage Drop † 200 200 200 mV dc Maximum Turn-on Time (ac) 20 20 20 msec Maximum Turn-off Time (ac) 30 30 30 msec Maximum Turn-on Time (dc) 1 1 1 msec Maximum Turn-off Time (dc) 1 1 1 msec * @ nominal voltage
** @ maximum logic voltage
† @ maximum output current* Never downloaded a .pdf before?
free software to open, read and print Portable Document Format files
1485 Exeter Dr., Akron, OH 44306 | ph 330-733-6662 | fx 330-733-6663 | products: sales@wrcakron.com | technical support: support@wrcakron.com