AX2850 Most Effective E-Stop Setup?

14 years 4 months ago #29525000 by bccreed
Hi,

I am trying to implement a safer e-stop on our AX2850. We have the E-Stop/Inverter input working, but want an additional hard wired e-stop system.

Which of these options would you guys recommend?

1. Power Control Wire - Add a relay to ground this wire to \"shut off\" the controller. Would this be effective?

2. Relay in line with the main power of the controller - Cut the main power to the controller.

3. Two relays, each in line with the motor outputs - Disconnect one wire from each motor on the controller.

Could any of these options damage the controller or erase controller settings?

Thank You!

-Ben

Please Log in or Create an account to join the conversation.

14 years 4 months ago #29525003 by cosma
Replied by cosma on topic Re:AX2850 Most Effective E-Stop Setup?
Option 3 would be the safest but requires a more expensive relay

Option 2 is the one that is the gentler to the controller

Option 1 will expose the controller to the effects of motor regeneration. It is not recomended. However you should have a disconnect swich there for the most extreme situations.

Please Log in or Create an account to join the conversation.

14 years 4 months ago #29525004 by bccreed
Cosma,

I am now leaning towards \"option 3\" and plan to use two 80 amp relays (www.sonicelectronix.com/item_5288_PAC+PAC-80.html), one for each motor.

My question:

Can I damage the controller if it is running and suddenly the load is removed from it? (As would be the scenario with this case)

Thanks

-Ben

Please Log in or Create an account to join the conversation.

14 years 4 months ago #29525005 by cosma
Replied by cosma on topic Re:AX2850 Most Effective E-Stop Setup?
That would be fine. The controller will not see any spike or any other kind of stress at all.

Please Log in or Create an account to join the conversation.

14 years 4 months ago #29525006 by wstuck
Thanks for the information listed above.

I am also planning on using the same type of E-Stop.
The link for the part is very helpful.

Please Log in or Create an account to join the conversation.

Moderators: tonysantoni
Time to create page: 0.065 seconds