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Technical specifications for
1771-OBD
Brand: Allen-Bradley
General Specifications:
Wiring Arm Screw Torque: 7-9 inch-pounds
- Indicates the recommended torque range (7-9 inch-pounds) for securing the wiring arm screws.
Field Wiring Arm Compatibility: 1771-WH; 1771-WHF; 1771-WHFB
- Specifies the compatibility of the module with different field wiring arms, including 1771-WH, 1771-WHF, and 1771-WHFB.
Keying: Between 10 and 12; Between 22 and 24
- Describes the keying options, allowing compatibility between keying 10 and 12, as well as keying 22 and 24.
Compatible Chassis: 1771 I/O chassis
- Indicates the compatibility of the module with 1771 I/O chassis, ensuring proper integration into the system.
Thermal Dissipation: 53.3 BTU/hr
- Specifies the thermal dissipation of the module, measured in British Thermal Units per hour (BTU/hr).
Power Dissipation: 15.6 Watts
- States the power dissipation of the module, indicating the amount of power it consumes during operation.
Minimum Load Current: 2.5 mA
- Specifies the minimum load current required for proper functioning of the module.
Maximum Surge Current: 4 A per output for 10 ms, repeatable every 2 s; 25 A per output for 10 ms, repeatable every 2 s
- Describes the maximum surge current the module can handle per output for specific durations, with repeatable intervals.
Output Specifications:
Output Current Rating per Channel:
- 2 A per output resistive, not to exceed 8 A per module
- 0.2 A per output pilot duty
This indicates that each output channel can handle a current of up to 2 A for resistive loads, with a maximum limit of 8 A for the entire module. Additionally, for pilot duty applications, each channel can handle up to 0.2 A.
Nominal Output Voltage: 48 VDC Indicates the nominal or standard output voltage, which is 48 volts DC.
Operating Voltage Range: 10-60VDC Specifies the acceptable range of operating voltages, ensuring functionality within the range of 10 to 60 volts DC.
Number of Outputs: Sixteen (16) outputs Indicates the quantity of output channels available on the module, totaling sixteen outputs.
Module Information:
Series: 1771 Product Bulletin
- This module belongs to the 1771 series, as outlined in the product bulletin.
Part Number/Catalog No.: 1771-OBD
- The unique identifier or catalog number assigned to this discrete output module.
Module Type: Discrete output module
- This module functions as a discrete output module, indicating it is designed for handling digital outputs.
Number of Outputs: 16 Outputs
- The module is equipped with 16 discrete output channels.
Voltage Category: 10 to 60 Volts DC, Source
- The permissible voltage range for this module is from 10 to 60 Volts DC, and it operates as a source for the connected devices.
DC Operating Voltage: 10 to 60 Volts
- The specified operating voltage range for the module is from 10 to 60 Volts DC.
Backplane Current: 400 Milliamps
- The current drawn from the backplane of the system by the module is 400 milliamps.
Max Continuous Current Per Output: 2 Amps
- Each output channel can handle a maximum continuous current of 2 Amps.
Max Continuous Current Per Module: 8 Amps
- The entire module can sustain a maximum continuous current of 8 Amps.
Additional Details:
Wiring Arm: 1771-WH or 1771-WHF
- Compatible wiring arms for this module are either 1771-WH or 1771-WHF.
Coating: Conformal Coat
- The module is coated with a conformal coat, which is a protective coating to enhance resistance against environmental factors.
Data Format: BDC or Natural Binary
- The supported data formats are BDC (Binary Coded Decimal) or Natural Binary.
Typical AC Signal Delay (Off): 45 (+/- 15) milliseconds
- The typical signal delay for AC signals to turn off is 45 milliseconds with a variation of +/- 15 milliseconds.
Typical DC Signal Delay (Off): 50 milliseconds
- The typical signal delay for DC signals to turn off is 50 milliseconds.
Mounting: Rack Mountable
- The module is designed to be rack-mountable, facilitating its installation within a rack structure.
