Here's my setup
MR-J2S-20B on the z-axis
HC-UFS23K 200W 3000rpm
Soft Servo Systems (SSS) control software
Does anyone have the MR-J2S-20B MR Configurator installer for windows? Really don't want to have to shell out $$$ for a license.
The machine is a ToolCrafter 4D
I "homed" the machine and was given an alert that the z-axis went past the soft limit. To unstick the z-axis, I took off the ribbon that connects it to the spindle screw and tried using the hand wheel to lower the z-axis and figure out why it went past the soft limit. Then the axis showed "amp alarm" on the screen, 3000~mm (my soft limits are between ~0mm and 60mm) and the Mitsubishi controller read alarm 52 in big red numbers. I looked this up and found that it is an "excessive error" wtf and called MEAU and asked what this meant. They told me that the location of serial encoder reading is more than 2.5 cycles from where the control thinks it should be.
I've tried clicking reset in SSS. When I do so, the motor rotates maybe half a turn and then throws the amp alarm and alarm 52 in about a quarter second. When I do this, the location moves closer to zero. I'm at 2700 mm now..but really would like to just get this fixed so I don't have to click reset a million times.
I can't "home" with the axis disconnected because the machine won't unlock, even after reset, reset, reboot. Soft Servo Systems locks me out of the hand wheel until an error is cleared. Why would I be getting an AMP alarm when its just an excessive distance issue? I'm not sure what to do. If anyone has an idea, please share.
The 52 alarm has nothing to do with your home position. It is an alarm in the drive that means the motor position does not match the position it is supposed to be at. It tells this by the feedback/encoder signal coming back to the drive. The distance you are from the home position has no bearing on this alarm.
Check your feedback cable and make sure it looks ok. You may have a bad component such as the drive or encoder. With out the software to connect to the drive you have limited information to go off of.