My great deal is fast becoming only a fair deal. Now I am getting random (but becoming more often) 409 sp1-30, 414, 424,434 alarms. Dignostic 720 - 723 all say OVC. The overcurrent alarm only happen when the main contactor engages. If I don't get the alarm at boot up, it runs fine.

Fanuc Alarm Codes List. Fanuc Alarm Codes List. Fanuc Alarm Codes for CNC machinists. (OVC) 437 n AXIS: CNV. OVERCURRENT POWER; 438 n AXIS: INV. Fellow Robot Wranglers I am working with a Fanuc R30a R-2000ib. The robot is used in casting to pour melted aluminium into molds (a die.

Most of the threads I have found are getting this alarm while spindle is running. I ran spindle to top for 10min yesterday and got nothing. I get a al-30 on the spindle amp and al-01 on the power supply module. Contoh Program Algoritma Bubble Sort there.

No alarm numbers on the xyz servo amps. The servo maintenance manual says if you have 30 on spindle amp and 01 on PSM, concentrate on the PSM. And that causes are either imbalance on the mains, wrong ac reactor, or problem IGBT transistor. My phase converter voltage is 218,219,221. Amps are not so balanced. The unusual thing is the check of IR and IS current on the PSM check pins show very little current, even when the contactor engages and the alarms sound.

The 24V and 5V pins show to within range. All the fans are running. I will take the PSM apart to have a look. Could wrong Phase rotation cause this problem? Any other insight? Thanks again.

The ONLY thing 'CNC' about an RPC is the way it is tuned. IMO, all of them should be tuned better. Once you see what happens to a motor with voltage imbalance, you will want to see it CLOSE. As well, you will notice that voltage not stay balanced with load.

You may need to tune it to a sweet spot of load for your machine. Learn about it.

A 3p rotation meter is dirt cheap from China and works. Fire RPC and verify rotation BEFORE turning machine on several times. Crystal Report Runtime For Windows 7 32 Bit. They are a must for anyone with 3P IMO.

Condensate in a control cab???!!! You are about to learn the expensive way! If you can touch anything in there and get moisture on your finger, do NOT run it. I left a cab open one night after repairing and fired the next day and Z took off, errored out, blew a fuse, etc.

Board were dripping! Put fan and light in there and learned to keep the thing sealed up and that was years ago. One of the great things with control air conditioners is they also dry the air for you. Guaranteed, they extend the life of controls. Heat and electrics don't like each other.