Motion Basics: MASD & MASR Instructions

Summary

In this video, Henry Gan, a Mechatronic Specialist, explains the purpose and usage of the MASD (Motion Axis Shutdown) and MASR (Motion Axis Shutdown Reset) instructions in Rockwell's Studio 5000 Ladder Logic Designer. He demonstrates how the MASD command transitions an axis into shutdown mode, disabling the drive output and deactivating the servo loop, while the MASR command resets the shutdown state and clears faults. Gan also highlights other potential triggers for the shutdown state, including fault actions and parameter limit violations. Viewers are encouraged to contact their local automation specialists for more information.

Takeaways

• 🤖 Henry Gan, a mechatronic specialist with Electric Supply and Equipment, introduces the purpose and usage of MASD and MASR instructions in Rockwell's Studio 5000 Logic Designer.
• 🛑 MASD (Motion Axis Shutdown) and MASR (Motion Axis Shutdown Reset) are instructions used for managing the shutdown state of an integrated motion axis.
• ⚙️ The shutdown state disables the drive output, deactivates the servo loop, and opens any associated solid-state relay contacts.
• 🔧 The MASD instruction forces the target axis into a shutdown state, keeping it there until an MASR instruction is executed.
• ✅ MASR instruction resets the shutdown state of the axis and clears any existing faults, provided the fault cause is no longer present.
• 📊 To use these instructions, assign a target axis and create a motion instruction tag in the ladder logic.
• 📝 Status indicator bits for the instructions include Enable, Done, and Error, which help monitor their status.
• 🔍 The instructions are located in the 'Motion State' tab of the instruction selector in the ladder logic editor.
• 🧪 Testing involves observing the transition of the target axis into the shutdown state with MASD and out of it with MASR.
• 💡 The shutdown state can also be triggered by other factors, such as configured fault actions or exceeding specific tuning parameter limits.

Q & A

What is the main focus of the video?

The video focuses on the purpose and proper usage of the MASD (Motion Axis Shutdown) and MASR (Motion Axis Shutdown Reset) instructions in ladder logic using Rockwell's Studio 5000 Logic Designer.

What does MASD stand for and what is its function?

MASD stands for Motion Axis Shutdown. Its function is to force the target axis to transition into a shutdown state, where the drive output is disabled, the servo loop is deactivated, and solid-state relay contacts are open.

What does MASR stand for and what is its function?

MASR stands for Motion Axis Shutdown Reset. Its function is to reset the target axis from the shutdown state and reset any existing axis faults, provided that the fault cause is no longer present.

What is the shutdown state of an axis?

The shutdown state of an axis is a condition where the drive output is disabled, the servo loop is deactivated, and any associated solid-state relay contacts are open.

How does the MASD instruction impact the target axis?

The MASD instruction transitions the target axis into the shutdown state, where the axis remains until an MASR instruction is executed.

What status indicator bits are associated with the MASD and MASR instructions?

The status indicator bits associated with these instructions are Enable, Done, and Error.

Where can you find the MASD and MASR instructions in Rockwell’s Studio 5000 Logic Designer?

You can find the MASD and MASR instructions in the Motion State tab of the instruction selector in Studio 5000 Logic Designer.

What additional reasons might trigger a shutdown state, besides the MASD instruction?

Other reasons for triggering a shutdown state include configured fault actions and exceeding tuning parameter limits.

What happens when the MASR instruction is executed?

When the MASR instruction is executed, the target axis transitions out of the shutdown state and returns to the stopped state, provided there are no existing faults.

What type of tag is required to control the MASD and MASR instructions?

A motion instruction tag is required to control both the MASD and MASR instructions.