Sometimes when running a vibration test an operator would like connect a shutdown circuit to the m+p hardware directly, thereby bypassing the software abort either automatically or manually as described below. The reasons for this vary, but it can be easily done!

Some examples of an abort circuit:

• Automatically via external over-test protection system is used, such as the m+p Coda 123, UD123, or TrigTek
• Manually via electro-mechanical abort switch
• Automatically via shaker interlock circuit

Instructions to Install an Overprotection System or Manual Switch

Step 1: Obtain an Emergency Shutdown Switch 

• A Normally-Closed switch should be used. If using an automatic system as described above, please skip to step 2. 
• Prepare the switch with a shielded cable that terminates in bare or tinned wire

Step 2: Connect the Cable

• Locate the Digital I/O connector on the back of the m+p VibRunner, m+p VibPilot or on the front of the m+p VibMobile device.
• Remove the shunt between input pin 8 and ground, as shown in the picture below
• Replace the shunt with the bare wire-end of the cable from either the manual or automatic switch. 

Step 3: Activate device

• Activate your switching device by pulling up on the button or turning on your automatic system. 
• If the m+p VibControl software is running or previously deactivated by the switching mechanism, proceed to step 4. 

Step 4: Restart the Service

• Open VibConfig by going to the m+p Toolbar > Utils... > Configuration
• Select Stop Service
• Select Uninstall Service
• Select Start Service

Did you know multiple shutdown switches can be used simultaneously? Just wire all devices in series so that each opens the circuit independently and you are good-to-go!

For an instructional video, use the link below!

https://mpihome.com/files/videos/VibControl/External%20Shutdown.mp4