Posts by Arvi

Quote from TitusLepic

Depending on your physical layout, you could use an area sensor, beam detector, floor mat, or something like that (not safety rated) to drop the hold signal before the operator gets to the light curtain; use the light curtain for safety as part of the fence circuit.

Hi TitusLepic

Thanks for you response. So i guess there is no other parameters which could be set to achieve this function. Will most likely have to do it that way.

thanks

*without the use of the button

I see. we are actually thinking of using safety light curtains and quite sure people will enter with the use of the button hence wanted to have the controlled stop option

Quote from PnsStarter

As far as I remember, this is not possible with RJ3.

But do you really want to operate a single-channel system?

Hi PnsStarter

Anything is fine as long as when the gate is opened, controlled stop is applied. The only other way i could think of is using a safety delay relay which holds the machine than activates another safety relay for fence within 1sec. Any other suggestion?

Hi All

We have a RJ3 controller with a single check safety. I am trying to install a fence gate. When the gate is opened the robot stops with sudden brakes on similar to e-stop. Is it possible to change any parameters so that it does a controlled stop?

Hello Guys,

Hope everyone is doing well. We have 2 x RJ3 controllers with S430iF robots. One of them started giving IPMAL alarm randomly on axis 5. So i swapped out the amplifier with the other one and that seems to be ok for now. But this one(the one with IPMAL alarm) now giving the srdy off error on all axis. Everything is exactly the same but dont know why am getting this new error now. I was expecting the IPMAL alarm but...... your help would be highly appreciated.

Thank you

Hi Guys

Thanks for your help. Yes the board is bad and the vendor has shipped two more boards hoping they will be ok this time

We have been buying a lot of fanuc parts from them for a while and the parts number on the board is same. So the axis card can work on any rj3 controller right? the last 3 digits doesnt matter right?

They sent me a video of it while they tested the card. It was working there. Also its fanuc original but second hand.

Hi All,

I am facing this very abnormal issue. We have 5-6 mixed robots with rj3 controller. One of them was going on srvo-18 brake abnormal fault. so I swapped the axis card (A16B-2100-200) with a known good robot and it worked fine. So i ordered a new(second hand) board from china which they tested there and sent me videos of it working. I installed on the first robot (S-430if) it came up with Srvo-21(srdy off G1-A1-6) alarm. So i tried on another s-430if, it came up with srvo-18 brake abnormal. Tried on a third machine which is M-16i, came up with srvo-18 alarm aswell. Now I am wondering if this has to do with any kind of software issue? Please can anyone help.

Thank you.

yes and he also said that they buy it from fuji japan and sell them as wholesalers. I think I will just buy it and see as they are cheap anyway. Also we ran the machine yesterday for almost 2 hours and it was fine. As you said the electronics degrade after a while so maybe expecting sooner or later.

I will update you.

Thank a lot for your help.

ok Thanks. do you think this module is original? they said that its original

https://www.alibaba.com/produc…714957.0.0.71f67a314eyhxk

Hi Skooter

thanks for your reply. really appreciate.

1..So whatever i have done will sure fail sometime soon.

2..Also the IPM module which i replace was not original. It was a Chinese one maybe thats why it is failing?

3.. I will try and replace it with J5. Just to see if the error follows or if there is some other related issue.

4..Which thermal grease is ideal for that ? Can i use the computer heat sink one?

Thanks

Hi

I was trying to replace the IPM module but realized that the spare one is 75A rated. So i cleaned the one which was giving issue and put some new paste. Hooked back up and its running now. So my question is:

1.. If it was the IPM module it should have failed straigjt away right?

2.. Can i replace the 50A with 75A IPM module?

3..Before taking it out I tried to restart the machine few time by completely shutting off power but it gave the IPMAL error straight away.

4.. Checked the cable which seems to be fine.

Thanks

Hi Skooter

Thanks for your reply. I dont think so i have cleaned them. i will definitely clean it this time i remove.

You could be right as it only happens when running a particular program. but so far the operators have only been running that one program and havent tried any others. I was reading the other post from skooter which alive 15 recommended, it could be overheating aswell. "maybe"

And yes i saw his comments really good.

Hi Alive15

Yes i meant the results were good. So the cables are ok.

Hello there

I am having a long term trouble with J4 issuing IPMAL error. The strange part is whenever i restart the machine it runs for few hours and errors out again. any suggestion please ?

Trouble shooting done so far: Meggered the motor cable results were >200Mohm

: Replace the IGBT unit on J4

Hi Mike

Thanks for your reply. It is difficult to dissemble the motor as the encoder glass is glued on the shaft and is difficult to remove.