Posts by mparsons

Cobenson Id love to see the writeups you have on FTP, because im about to be developing a remote line PC project using FTP over ethernet. Ill send you a PM.

So I was at Fanuc a few weeks ago and we got to talking about options. The Space Check function came up in our conversations and one of the instructors there stated that Fanuc would eventually be getting rid of the Space Check option as DCS can control this. I agreed that it could but asked how you could allow the end user to use the Position/Speed check without compromising the rest of the robots safeties by supplying them the DCS Master code to make said changes. I was told that you could set up other codes to allow certain things in DCS to be changed without using the master code. Looking through the manual I see Local Codes for Base, Position/Speed check, and I/O Connect. Per the manual it says that if you make changes in only these areas that the Local Codes can be used to apply them. Ive tried testing this in Simpro without any success. This would be great if actually works, b/c at the moment if a maintenance person were to remaster any axis on the robot then I would have to supply the master code to apply the DCS settings in the controller. I was hoping someone on here has possibly figured this out and gotten it to work!! Many thanks!

Yes i checked the motor parameters, ended up being that the rv unit was giving us issues.... motor was turning the rv unit, and the rv unit was putting a strain against the motor, thus resulting in the higher OVC alarm during run conditions. Thanks

sorry not sure if it matters but this is also on a new R30ib controller running software 8.10P/13

Hi All,
Im having a problem with an aux axis on a machine we built. The motor is a new aif12/4000 motor that is mated to an 80:1 gear reduction rv unit (this turns a large turntable). The motor keeps having an OVC fault. Whats really strange about this situation is the manner in which the OVC alarm occurs. Note im using MORGRP.OVCMNTR to watch the current draw on the motor. When turning the servo the current actually drops, but at rest is when the current increases. I would expect to see the current climb when first starting the motion and then settle once motion was established, but not when the servo is at rest! Anyways we took the machine apart to try and diagnose the problem and here is what we found. With the servo totally removed everything acts as normal. I have 0 OVC at rest and maybe .2 OVC when moving the motor. With the RV unit disconnected from the turntable and servo installed the problem returns. OVC climbs while the servo has no motion in the RV unit. I did not personally check the rv unit but I had a member of our build team tell me that he could turn the rv unit by hand so i dont feel that this is enough binding to cause a motor to pull current like that. Ive contacted Fanuc about it and they asked for MD backup and cpu debug. Sent that, but havent had any word back. I really need to try to get this machine back on its feet. Any help you guys could give me would be great!! Thanks