Description
1C31179G01 Emerson redundant system output module
thereby controlling external devices or circuits.
2. During the power on inspection, it was found that one chip was abnormally heating up. After power failure, cut off the power pin of the chip, perform static inspection, and it should be normal for the impedance from the power supply to ground to increase. The resistance value from the power supply to ground of the chip is very small. Check the model of the chip, it is a non-standard model and cannot be found in many manuals. After circuit analysis, it was confirmed that it is the main component in the board: the ring pulse distributor.
3. To further confirm the issue with the chip, first replace the power drive tube of the stepper motor with a voltage withstand current of equivalent power, restore the power pin of the chip, and use a light-emitting diode circuit to replace the windings of the stepper motor as a simulated load. After power on, all the light-emitting diodes are lit up, indicating that all windings are powered on. This does not meet the requirements of the circuit, as there is no response to the input step pulse. Therefore, it is confirmed that the chip is damaged.
4. Solution: This chip is not available on the market. When the space inside the driver housing allows, a combination circuit was used to design a circular pulse generator by combining the existing D flip-flop and NAND gate. The generator was fabricated on a small printed circuit board, and the original chip was removed and the small printed circuit board was mounted on the solder pads of the original chip through pins. Still using light-emitting diodes as simulated loads, after being powered on, apply step pulses to sequentially emit light in phase sequence. Dismantle the simulated load, connect to the host, power on, and ensure that the equipment is running normally.
5. This example illustrates that maintenance personnel not only need to be able to analyze phenomena (overcurrent) and identify obvious causes (power tube damage), but also need to be able to analyze the initial cause of the fault step by step (pulse generator damage), and be able to use existing component combinations at hand to replace difficult to solve device problems.
responsible for processing signals from on-site sensors or driving actuator actions. For example, they may need to cooperate with devices such
as BANNER travel switch T30UIPB to receive their transmitted position signals; Or by controlling components such as Burkert solenoid valve 00131421, the on/off of fluid media can be precisely managed.
these modules integrate more complex logic processing capabilities. The core task of a pressure switch is to detect whether the pressure
has reached a preset threshold and output a switch signal. Its function is highly specific and fixed. And modules 1C31179G01 and 1
C31219G01 have the ability to comprehensively judge multiple such switch signals and transmitter signals (such as transmitter 1066-P-HT-60),
and output complex control instructions according to internal logic.



