1794-PS3 new original US AB Rockwell PLC module ControlLogix series
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Product Details
Brand Name: | AB Rockwell | Place of Origin: | United States | Model Number: | 1734-OB8S |
Product Description
The Allen-Bradley 1734-OB8S POINT security output module has A solid state output and is divided into 2 series (A and B). It has a two-channel mode that will use two output signals to control any redundancy. The Allen-Bradley 1734-OB8S series has eight (8) current source outputs per module. The output current of each channel of the 1734-OB8S output is 1A. The pulse width is 475 micro/s and the pulse period is 575 ms. The maximum field capacitance limit for each output is 950 nF. It has a voltage drop of 0.165 V and a maximum leakage current of 0.1 mA. 1734-OB8S has short circuit detection function, divided into short circuit, high, low and cross circuit fault detection. The short circuit is protected electronically and its output can concentrate 8A current.
The 1734-OB8S has a maximum response time of 6.2 ms and a maximum point bus current of 190 mA. The maximum power consumption is 4.5 watts, with a typical value of 3.02 watts. It dissipates heat at 15.38 BTU per hour. It has an isolation voltage of 50 volts and basic insulation between the excitation side and the system. There is no isolation between channels. The 1734-OB8S has been tested at 707 volts DC for 60 seconds. Its power bus operating power supply voltage is nominal 24 volts DC, the voltage range is 19.2 to 28.8 volts DC. When unloaded, the power bus current is 75 mA. It comes with various indicators, 1 yellow for lock state, 1 green/yellow for power state, and 8 for channel I/O. The wiring class of 1734-OB8S is 2 open signal ports. Wiring size and terminal block torque can only be determined by the installed terminal block. The 1734-OB8S is 77 x 25 x 55 mm in size.
The maximum power bus current of the 1734-OB8S is 50 mA when unloaded. For these two Allen-Bradley 1734-OB8S series, the operating temperature is -20 to 55 degrees Celsius and the storage temperature is -40 to 85 degrees Celsius. It has a relative humidity of 5% to 95% (non-condensing), a vibration of 5 G at 500 Hz, an operating shock of 30 G, and a non-operating shock of 50 g. It satisfies the following requirements: SIL CL2, PLe, Category 4. This security module is compatible with GuardLogix, Compact GuardLogix, and SmartGuard controllers. Use RSNetWorx for DeviceNet when configuring this 1734-OB8S module. However, if you are using Ethernet, the GuardLogix programming tool and the Logix Designer application are the best choices when configuring the 1734-OB8S POINT security output module. The safety I/O module weighs 2.2 oz.
1734-OB8S is an Allen-Bradley module that belongs to the POINT Guard IO security module. The module has a solid state output and is capable of running in single - or dual-channel mode.
Single-channel mode uses an output signal to provide control. In this mode, the module is suitable for applications requiring safety category 2 and is rated up to Grade d/SIL CL2 when the point mode configuration of the channel is configured for safety pulse testing. The 1734-OB8S single-channel mode is approved for secure applications with no less than 600 ms process safety time. It can also be used in applications where the demand rate does not exceed 1 requirement per minute.
The two-channel channel mode uses two output channels at the same time, and its redundancy control can be tested in applications requiring a performance level e/SIL CL3 where security levels 3 and 4 are required and the point mode configuration of the channel is configured as a security pulse.
The 1734-OB8S safety output is capable of pulse testing to detect short circuits in field wiring.
When the module detects a fault, the output is turned off and remains turned off until the module recovers from the detected fault. To enable security output, you must eliminate the cause of the error, switch the command security output to a safe state, or allow the output error time to expire. If the red indicator is off, the module is rectified
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