Rexroth Rexroth PLC maintenance: When Rexroth PLC fails, the first thing to do is to detect the fault problem from the first one, and detect the working voltage power supply, connection, etc., to ensure that it is within the specified requirements.
Rexroth PLC writer can not be operated and repaired: maintenance inspection steps:
1. Check the working voltage.
The BATT LED indicator on the motherboard module is used to check the status of the battery that supports the memory module and helps you determine if the battery needs to be replaced. Check your Rexroth PLC power supply for any power spikes or short circuits. Use a voltmeter or multimeter to verify that the AC input voltage of the Rexroth PLC power supply matches the Rexroth PLC voltage setting. Rexroth PLC processors work using DC power supplies, so you should check the output voltage of Rexroth PLC power supplies to make sure it is within the proper range. This power supply is available in different power ratings and sizes, in addition, please check that the voltage setting of the Rexroth PLC power supply matches the voltage rating of the connected input and output devices.
2. Check the working current.
It is also important to measure the operating current of the Rexroth PLC system, as the rated current directly affects the amount of work that can be done with the Rexroth PLC system. Check the output and input currents of the Rexroth PLC power supply using a digital ammeter or multimeter to verify that they meet the reference current. If the BATT LED on the motherboard module is red, yellow, or flashing, it is time to replace the battery, please note that if you are replacing a Rexroth PLC battery, it must be replaced with the same model as your current battery module in terms of operating voltage and current.
3Check the connection.
Regularly check all connections to Rexroth PLC systems, such as communication cables, terminal strips, sockets, plugs, field wiring, and IO modules, to ensure they are connected correctly. Loose connections may cause the Rexroth PLC system to malfunction and may also cause damage to its components. For IO modules, make sure they are securely installed and check that all modules are tightly connected. Also, check all connections to field I/O devices and adjust accordingly.
4. Check whether it is firm.
Check that the Rexroth PLC system itself is securely installed. Tighten any loose bolts, sleeves, or screws to prevent the system from rattling. If Rexroth PLC systems are used in high-vibration applications, this check should be performed more frequently. Constant vibration may periodically loosen the terminal connection. Therefore, as a precautionary measure, it is recommended that you connect your vibration detector with a Rexroth PLC system. In this way, Rexroth PLC will monitor the high vibration level at the location, which can lead to loose terminal connections.