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1771-IK

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The 1771-IK module is a counter module and encoder module that has been manufactured by Allen-Bradley/Rockwell Automation. This module is available from the Allen-Bradley PLC 5 series. The 1771-IK counter and encoder module needs an external DC power supply that is rated at 12 to 24 Volts DC in order to operate. It also comes with 2 gold-plated field wiring arms that are 12-terminal types of wiring arms. The 1771-IK counter and encoder module needs 120 milliamps of current at 12 Volts DC and 200 milliamps of current at 24 Volts DC.

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Technical specifications for 1771-IK

Manufacturer	Rockwell Automation
Brand	Allen-Bradley
Part Number/Catalog No.	1771-IK
Module Type	Positioning I/O Modules
Inputs	12-24 Volts Single-Ended Incremental Encoder or Single-Channel Device
Max Input Frequency	50 Kilohertz
Outputs	5 Volts DC Open- Collector 0.5 Ampere Per Output
Slots	2 Slots
Module Update Period	1.3 Milisecond
Backplane Current	1.2 Amperes
Wiring Arm	1771-WB
Model Status	Earlier Model
Typical AC Signal Delay (Off)	24 (+/- 10) ms
Typical DC Signal Delay (Off)	20 (+/- 9) ms
Mounting	Rack Mountable

Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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The Allen-Bradley 1771-IK module is a counter and encoder module for PLC-5 systems. The module supports 1 counter. The encoder supports dual channels and the counter supports 1 channel. The supported peak input pulse rate is 50 kilohertz. The 1771-IK module supports both the block transfer and single transfer modes. The module requires an external power supply rated for 12 to 24 Volts DC. The input circuits require a maximum current rating of 170 milliamps and the output circuits require a maximum current of 1.08 Amps. The device driving the input terminal must be capable of sinking 10 milliamps of current for a 12 Volts DC external power supply. The device driving the input terminal must be capable of sinking 20 milliamps of current for a 24 Volts DC external power supply.

The output ratings for the 2 open collector outputs on the 1771-IK module include a maximum current of 500 milliamps per output and the output voltage equals the external power supply voltage. The maximum power dissipation for the 1771-IK module is 12.1 Watts. The thermal dissipation for the module is 41.3 BTU per hour. The module is installed in an empty slot on an Allen-Bradley 1771 chassis. The typical and maximum backplane current requirements of the module are 1.2 Amps and 1.4 Amps, respectively. The module draws 75 milliamps of current at 24 Volts DC and 150 milliamps of current at 12 Volts DC from the external power supply. The vibration rating for the 1771-IK module is 2 G at 10 to 500 Hertz. The shock ratings for the module are 30 G for the operating mode and 50 G for the storage mode. The module comes with an open enclosure and it requires a 0 to 60 degrees Celsius operating temperature range.