GE DS3820PSCB1C1B Mark V gas turbine card module
Brand GE Color Standard Application Industrial height 281mm rated current 465mA
Protection Level IP45 Suitable for motor power 152KW Applicable Site Power Industry BOM Number GJR2391500R1220 Power industry HIEE401782R0001 Part number DS3820PSCB1C1B
Applicable pipe 2 Whether imported is weighing 4.33 kg can be sold nationwide
GE DS3820PSCB1C1B Mark V gas turbine card module
Input/Output loop debugging (1) Analog input (AI) loop debugging. Carefully check the address assignment of I0 module; Check whether the circuit power supply mode (internal power supply or external power supply) is consistent with the field instrument; The signal generator is used to add a signal to each channel at the field end, usually taking 0, 50% or 100% three points for inspection. For the AI loop with alarm and interlock value, it is also necessary to check the alarm interlock value (such as high, low and interlock points and accuracy) to confirm the correctness of the alarm and interlock state. (2) Analog output (AO) loop debugging. According to the requirements of loop control, the actuator (such as valve opening, etc.) can be checked by manual output (that is, directly set in the control system), usually 0, 50% or 100% three points for inspection; At the same time, through the closed-loop control, check whether the output meets the relevant requirements. For the AO loop with alarm and interlock value, it is also necessary to check the alarm interlock value (such as high alarm, low alarm and interlock point and accuracy) to confirm the correctness of the alarm and interlock status. (3) Switching input (DI) circuit debugging. Short-circuit or disconnect at the corresponding field end, check the change of the light emitting diode corresponding to the channel address of the switching input module, and check the change of the channel on and off. (4) Switching output (DO) loop debugging. The output points can be checked through the forced function provided by the PLC system. By force, check the change of the light emitting diode corresponding to the channel address of the switching quantity output module, and check the change of the channel on and off. (1) For the switching input and output circuits, attention should be paid to maintaining the principle of state consistency, usually adopting the principle of positive logic, that is, when the input and output are charged, the state is “ON”, and the data value is “1”; On the other hand, when the input and output lose power, the state is “OFF” and the data value is “0”. In this way, it is easy to understand and maintain. (2) The input/output module with large load switching quantity should be isolated from the field by relay, that is, the field contact should not be directly connected with the input/output module as far as possible. (3) When using the forced function provided by PLC, it should be noted that the state should be restored after the test is completed; You should not force too many points at the same time to avoid damaging the module. 3, control logic function debugging control logic function debugging, need to be completed jointly with the design, process representatives and project management personnel. To apply the test function of the processor to set the input conditions, check whether the change of the output state is correct according to the processor logic to confirm the control logic function of the system. For all interlocking circuits, the process conditions of interlocking should be simulated, the correctness of interlocking action should be carefully checked, and debugging records should be made and countersigned for confirmation. Inspection is the process of acceptance of the design control program software, which is the most complex, the highest technical requirements and the most difficult work in the debugging process. Especially in the case of patented technology applications, special software, etc., it is more necessary to carefully check the correctness of its control, and a certain operating margin should be left, while ensuring the normal operation of the process operation and the safety, reliability and flexibility of the system.
GE DS3820PSCB1C1B Mark V gas turbine card module
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