Allen Bradley 1756-OB16DK ControlLogix 5580 programmable controllers

The Allen-Bradley 1756-OB16DK module is a digital output module for Allen-Bradley ControlLogix 5580 programmable controllers. The 1756-OB16DK module includes 16 diagnostic outputs with 8 points per group. The pilot duty current is 2 Amps at 30 degrees Celsius and 1 Amp at 60 degrees Celsius. The voltage category of the module is 24 Volts DC source voltage. The operating voltage range is from 19.2 to 30 Volts DC. The nominal and maximum output delay times for the off to on process are 60 microseconds and 1 millisecond, respectively. The nominal and maximum output delay times for the on to off process are 630 microseconds and 5 milliseconds, respectively. The current draw at 5.1 Volts DC is 250 milliamps and the current draw at 24 Volts DC is 140 milliamps. The total backplane power draw for the module is 4.4 Watts. The maximum power dissipation for the module is 3.3 Watts at 60 degrees Celsius. The thermal dissipation for the 1756-OB16DK module is 11.25 BTU per hour.

Technical specifications for 1756-OB16DK

ManufacturerRockwell Automation

BrandAllen-Bradley

Part Number/Catalog No.1756-OB16DK

SeriesControlLogix

Module TypeDiagnostic DC Output Module

Outputs16-Point Diagnostic

Voltage24 Volts DC Source

Operating Voltage Range19.2-30 Volts DC

Maximum Output Current Rating-Point2 Amps at

Maximum Output Current Rating-Module8 Amps at 30 degrees Celsius and 4 Amps at 60 degrees Celsius

Power Dissipation (Max)3.3 Watts at 60 Celsius

Backplane Current at 5 Volts250 milliamps

Backplane Current at 24 Volts140 milliamps

Removeable Terminal Block(s)1756-TBCH, 1756-TBS6H

Isolation Voltage50 Volts Continuous

EnclosureNone

The 1756-OB16DK module requires one slot in a chassis for installation. The enclosure of the module is open and it complies with the T4A North American temperature code. The maximum temperature of the air surrounding the module should not be allowed to exceed 60 degrees Celsius. During storage, the 1756-OB16DK module should be kept in an environment where the temperature is maintained between –40 and 85 degrees Celsius. The 1756-OB16DK module is conformally coated for protection against corrosive elements in hazardous locations. The vibration rating for the module is 2 G at 10 to 500 Hertz. The operating shock rating is 30 G.