The Allen Bradley 1756-OW16I is a Sixteen (16) channel discrete output module that is part of the ControlLogix automation platform. This module is a relay output module with contact form of Normally Open (N.O.) with individual isolation. This module may also be termed as a dry contact output module which is compatible to be operated at voltage ranges of 5-125VDC and 10-240VAC.
The 1756-OW16I delivers output current ratings of 1 A @ 5-30V DC; 0.5 A @ 48VDC; 0.22 A @ 125VDC; 1.5 A @ 120VAC, 50/60 Hz and 0.75 A @ 240VAC, 50/60 Hz. This module has a pilot duty rating of C300/R150.
Each output channel has a maximum output delay time of 10 ms for both signal transitions. It draws 150 mA current from the backplane @ 5.1 VDC and 24VDC with total backplane power draw of 4.4 Watts.
The 1756-OW16I has a maximum switching frequency of One (1) operation every Three (3) seconds or (0.3 Hz at rated load) with mean bounce time of 1.2 ms. Each of the output contacts are expected to operate up to 300 kHz when used with resistive loads and 100 kHz when used with inductive loads. Additionally, this module supports scheduled outputs and may be configured to Hold last state, On or Off during when FAULTED with Off as default setting. Similarly, output states may also be held at last state, with OFF as default setting during PROGRAM mode. This module is shipped with a Removable Terminal Block (RTB). Applicable RTB for use with this module are 1756-TBCH and 1756-TBS6H.
The 1756-OW16I’s output delay time for both ON to OFF and OFF to ON is 10 milliseconds and it draws a backplane current of 150mA at both 5.1 Volts and 24 Volts DC and it has a total backplane power of 4.4 Watts. It has a thermal dissipation of 15.35 BTU/hour and dissipates 4.5 Watts at 60 degrees Celsius. Each output can accommodate a minimum current load of 10mA and a current leakage of 1.5 mA per point. The 1756-OW16I contact module has an initial contact impedance of 100 Ohms at 6V, 1A and it has a load-dependent switching frequency of 0.3 Hertz. It has a mean bounce time of 1.2 milliseconds with an expected contact life of 300 kHz resistive and of 100 kHz inductive. The 1756-OW16I has a scheduled output with a 16.7 second synchronization time with respect to Coordinated System Time (CST), and it has a circuit isolation voltage of 250 Volts with a basic insulation type tested at 1350 Volts AC for 2 seconds between outputs-to-backplane and output-to-output. The 1756-OW16I has a designated T4 North America temperature code and an open enclosure. Its operational temperature ranges between 0 and 60 degrees Celsius at a humidity of 5 to 95% without condensation.
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| Manufacturer | Rockwell Automation |
| Removable Terminal Block | 1756-TBCH; 1756-TBS6H |
| Enclosure type rating | None (open-style) |
| Output Signal delay, ON to OFF | 10 ms max |
| Output Signal delay, OFF to ON | 10 ms, max |
| Power Dissipation | 4.5 W @ 60 °C (140 °F) |
| Backplane Current, 24VDC | 2 mA |
| Total backplane Power | 4.4 W |
| Current draw @ 5.1V | 150 mA |
| Output Voltage range | 1 A @ 5…30V DC; 0.5 A @ 48V DC; 0.22 A @ 125V DC; 1.5 A @ 120V AC 50/60 Hz; 0.75 A @ 240V AC 50/60 Hz |
| Operating Voltage range | 5…125V DC; 10…240V AC |
| Contact form | Normally Open (N.O.) |
| No. of outputs | Sixteen (16), individually isolated channels |
| Brand | Allen Bradley |
| Part Number/Catalog No. | 1756-OW16I |
| Series | ControlLogix |
| Module Type | Digital DC Sourcing Output |
| Outputs | 16-Point Individually Isolated |
| Operating Voltage | 10-265 Volts AC, 5-150 Volts DC |
| Output Current | 2, 0.5, 0.25 Amps |
| Maximum Output Delay Time | 10 milliseconds |
| Contact Output | 13 N.O. |
| Power Dissipation (Max) | 4.5 Watts at 60 Celsius |
| Backplane Current at 5 Volts | 150 milliamps |
| Backplane Current at 24 Volts | 150 milliamps |
| Removeable Terminal Block(s) | 1756-TBCH, 1756-TBS6H |
| Isolation Voltage | 50 Volts Continuous |
| Enclosure | None |