Prime India Polymix Interview Questions, Process, and Tips

Yes, I have experience with PLC programming in various industries.

• I have experience with ladder logic programming

• I am familiar with different PLC brands such as Siemens, Allen Bradley, and Schneider Electric

• I have worked on troubleshooting and debugging PLC programs

• I have implemented PLC programs for automation processes in manufacturing plants

Star-Delta wiring diagram involves connecting a motor for reduced starting current.

• Draw three lines representing the three phases of the power supply.

• Connect the motor windings in a star configuration initially for starting.

• Switch to a delta configuration once the motor is up to speed for normal operation.

• Include contactors and overload relays in the diagram for control and protection.

• Label all components and connectio

I have 5 years of experience working as a Service Engineer.

• 5 years of experience in servicing and maintaining various equipment

• Proficient in troubleshooting and problem-solving

• Familiar with industry standards and regulations

• Certified in specific equipment or systems (e.g. HVAC, medical devices)

Load cell cannot be checked without power supply.

• Load cells require power supply to function properly.

• Without power supply, load cells cannot measure or transmit any data.

• To check a load cell, it is necessary to provide it with its required power supply.

PLCs can communicate with each other through various methods such as Ethernet, serial communication, or fieldbus protocols.

• PLCs can communicate using Ethernet/IP protocol, which allows for real-time data exchange between multiple PLCs.

• Serial communication, such as RS-232 or RS-485, can be used to establish a direct connection between PLCs.

• Fieldbus protocols like Profibus or Modbus enable communication between PLCs over...read more

If two devices have the same IP address, it can lead to network conflicts and communication issues.

• Having the same IP address can cause network errors and connectivity problems.

• It can result in data packets being sent to the wrong device.

• Network administrators may experience difficulties in identifying and troubleshooting issues.

• Duplicate IP addresses can lead to intermittent or complete loss of network connectivity.

• To...read more

It is not possible to set VFD parameters without knowing its model number.

• The model number of the VFD is essential to access its specific parameters.

• Each VFD model has its own unique set of parameters that need to be configured.

• Without the model number, it is impossible to determine the correct parameter values.

• Consult the VFD's documentation or contact the manufacturer to obtain the model number.