505-8237-2601 Woodward accessory price Model Offer

Description

505-8237-2601 Woodward accessory price Model Offer

The Woodward 505-8237-2601 controls load sharing and speed of generators driven by diesel or gaseous engines. (These power sources are referred to as “prime movers” throughout this manual.) The 505-8237-2601 is a microprocessor-based digital control designed to include the functions of and be compatible with 2301A and 2301D load sharing controls. The increased flexibility of software allows the 505-8237-2601 to include control functions that required additional equipment in previous versions of 2301A and 2301D control systems. The 2301E therefore is suitable for upgrading existing control systems for increased functionality in new installations.

PLC inspection and maintenance
1. Regular inspection
PLC is an industrial control equipment, and although many measures have been taken in terms of reliability, the working environment still has a significant impact on PLC. Therefore, regular inspections of the PLC should usually be conducted every six months. If the working conditions of the PLC do not meet the standards specified in Table 1, some emergency measures need to be taken to ensure that the PLC operates in the specified standard environment.

2. Daily maintenance
Except for lithium batteries and relay output contacts, there are basically no other vulnerable components in the 505-8237-2601. Due to the use of lithium batteries to protect the random access memory (RAM), counters, and auxiliary relays with retention functions that store user programs, the lifespan of the lithium battery is approximately 5 years. When the voltage of the lithium battery gradually decreases to a certain extent, the battery voltage drop indicator light on the PLC basic unit lights up. Remind users to note that programs supported by lithium batteries can be retained for about a week and the battery must be replaced, which is the main part of daily maintenance.

Steps for replacing lithium batteries:
① Before disassembly and assembly, the PLC should be powered on for at least 15 seconds (this can charge the capacitor as a backup power source for the memory. After the 505-8237-2601 is disconnected, the capacitor can temporarily power up the PLC to protect information in the RAM from loss);
② Disconnect the AC power supply of the PLC
③ Open the battery cover of the basic unit
④ Remove the old battery and install a new one
⑤ Cover the battery cover
The battery replacement time should be as short as possible, generally not exceeding 3 minutes. If the time is too long, 505-8200-1302 in RAM will disappear.

505-8237-2601 Woodward accessory price Model Offer

505-8237-2601 Woodward accessory price Model Offer

              The use of DCS process alarm hierarchical control plays a key role in the safety of the site. According to the survey of relevant data, 505-8237-2601 of alarm has a great impact on the safety factor of alarm, and attention should be paid to the selection of alarm in the process of using this technology.
Through the study of different control systems, several principles for selecting alarms are obtained to ensure that alarms can play a full role in the system.5 counter channels, each with two counter inputs, max 100 kHz and one Strobe and one Set input, ±13 mA, 24 V d.c. or 5 V d.c.

505-8237-2601 Woodward accessory price Model Offer

           Hierarchical control technology can ensure that alarms in different areas are independent, and different alarms are used for alarm monitoring in each area, which can ensure timely alarm in case of abnormal conditions within the detection range to attract the attention of operators.
DCS process alarm hierarchical control technology can effectively improve the safety of the operation site and effectively guarantee the safety of construction personnel and enterprises. Based on the concept and characteristics of DCS, this paper studies the application of toxic and harmful gas alarm and key operating parameter alarm, in order to provide reference for scholars in this field. 01 DCS multi-layer and hierarchical control system.The basic design idea of DCS is to adopt the idea of decentralized control, centralized operation and management to achieve multi-level hierarchical control and cooperation structure. At present, it is mainly used in metallurgy, electric power, petrochemical and other fields.
DCS is a system to realize multi-level and hierarchical control. In the process of use,505-8237-2601 has two basic hierarchical links: field control unit and operation station.
DCS basic grading link
● Field control unit:

505-8237-2601 Woodward accessory price Model Offer

505-8237-2601 Woodward accessory price Model Offer

           It refers to the control system used near the site far away from the control center, which can monitor and control the site according to the mechanism of DCS itself. Different devices need to be prepared for the use of the field control unit, such as configuration plug-in, that is, corresponding central processor plug-in, power plug-in and communication plug-in are configured according to the system requirements to lay the foundation for later hierarchical control;
Redundancy configuration is one of the important links in the hierarchical control system. In the process of configuration, 505-8237-2601 power plug-in and communication plug-in should be configured redundantly; To achieve hierarchical control and monitoring on site, DCS shall be added to different hardware to ensure the reliability of hierarchical control.
● Operation station:
The operation station records and displays different data in the control system, which is a place to display human-computer interaction. Common operation stations include host computer control, display equipment, keyboard input equipment, etc. It is a place where manual operation is mainly used for recording and feedback, which mainly realizes various important functions such as displaying different data, alarming and operation.

505-8237-2601 Woodward accessory price Model Offer

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