【Daily Quiz 110】Basic Knowledge of Control Systems (Please hide the answer)
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This post was last edited by LZ Gas Station on 2010-1-3 at 18:54. What conditions must be met before system debugging? (Please hide replies.) (1) The instruments and control devices have been installed, and individual calibration has been completed successfully. (2) The pipeline connections are correct, and the pressure test was successful. (3) The electrical circuit wiring is correct, and the terminals are firmly fixed. (4) Before powering on the AC and DC power circuits, check the insulation using a 500V MΩ meter; the insulation resistance should be no less than 1 MΩ, and in humid areas it should be no less than 0.5 MΩ. (5) The capacity, voltage, and frequency of the power supply, as well as the specifications for fuses or switches, shall meet the requirements of the equipment being designed and used. (6) After the pneumatic pipeline has been purged, the air source should be dry and clean, and the pressure must meet the requirements for using the equipment.
1. Complete technical documentation and other materials necessary for debugging should be available before starting the system debugging process. 2. The person in charge of system debugging should be a professional technician, and those involved in the debugging process should have clear responsibilities. 3. Check the models, specifications, quantities of the system components, as well as the quality of the system installation, and address any issues that are identified promptly.
(1) The fire water tanks and fire reservoirs contain the required amount of water as specified in the design； (2) The system is powered normally ； (3) The water level and air pressure of the fire protection pneumatic water supply equipment meet the design requirements ； (4) The fire alarm system integrated with the system is in operational mode.
1. Software and hardware installation completed； 2. Grounding test is good ； No fault alarm upon power-up.
What conditions must be met before system debugging? The system hardware (in the control room and on-site) must be installed, the wiring must be correct, the system must be powered on, and it must be confirmed that there are no faults in the computer’s hardware and software
1. Before trial operation, the relevant electrical equipment and circuits shall meet the design requirements and specification requirements. 2. Before trial operation, individual tests and inspections must be conducted on various low-voltage electrical devices installed separately on site. The complete sets of distribution cabinets and distribution boxes related to the trial operation have passed the tests prior to the trial operation. 3. The electrical equipment is firmly installed, with all bolts and anti-loosening components in place and not loose. The wiring entrances and junction boxes of waterproof and moisture-proof electrical equipment should be sealed. 4. The insulation resistance value of motors and electric actuators should be greater than 0.5 MΩ.
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1. Complete technical documentation and other materials necessary for debugging should be available before starting the system debugging process. 2. The person in charge of system debugging should be a professional technician, and those involved in the debugging process should have clear responsibilities. 3. Check the model, specifications, quantity of system components, as well as the quality of system installation, and address any issues that are identified promptly. 4. The system should have proper power supply. 5. The water level and pressure of the fire protection pneumatic water supply equipment should meet the design requirements； The fire alarm system associated with the system is in operation.
The following conditions must be met: (1) The instruments and control devices have been installed, and individual calibration has been completed successfully. (2) The pipeline connections are correct, and the pressure test was successful. (3) The electrical circuit wiring is correct, and the terminals are firmly fixed. (4) The capacity, voltage, and frequency of the power supply, as well as the specifications for fuses or switches, shall meet the requirements of the designed and operating equipment. (5) After the pneumatic pipeline has been purged, the air source should be dry and clean, and its pressure must meet the requirements for using the equipment.
1. All instrumentation equipment has been installed, with specifications, models, and materials meeting the design requirements； 2. The source component is positioned appropriately, the positive and negative pressure pipes are connected correctly, and the pressure guide pipe has passed purging and pressure testing ； 3. The gas signal pipe piping is consistent with the circuit diagram, has passed the continuity test, the connections are secure, and the airtightness test meets the requirements ； 4. The gas supply pipeline has been purged, pressure-tested, and leak-tested successfully, and clean, dry instrument air with stable pressure has been supplied to it ； 5. The electrical circuit has been checked for wiring and insulation; the connections are correct, and the terminals are secure with good contact.
1. Single-unit trial run is successful. 2. Utility systems such as water, electricity, and gas are in place. 3. Signals at various control points are transmitted and feedback is normal