|Alarm 546 SERIAL KEYBOARD BUFFER OVERFLOW, or none of the functions of the RJH work.
||There is a bad connection at the RJH Serial Keyboard Interface PCB or at the Maincon/MOCON.
||Check the cables and connections.
|There is a faulty Serial Keyboard Interface PCB.
||Test the RJH for issues.
|Machines with SKBIF Version 6.xx. Alarm 546 SERIAL KEYBOARD BUFFER OVERFLOW.
||The SKBIF firmware is outdated.
||Make sure you have SKBIF firmware version 6.6 or higher. Refer to SKBIF PCB / RJH Firmware Update - NGC procedure.
|The Jog Handle pulse encoder does not generate axis movement.
||There is a faulty or contaminated Jog Handle Pulse Encoder.
||Check the jog handle for signs of contamination or physical damage.
|Remote Jog Handle Touch - The machine motion when jogging is jerky when using the 0.010" or 0.100" increments.
||The remote Jog handle is outdated
||Update the RJH-Touch firmware to the latest version. Refer to SKBIF PCB / RJH Firmware Update - NGC procedure.
|Alarm 9421 RJH EMERGENCY STOP SWITCH ERROR
||The E-STOP jumpers JP2 & JP3 on the SKBIF PCB are in the horizontal position.
||Orient the E-STOP jumpers to the vertical position on the SKBIF PCB to enable the RJH E-STOP. Cycle power the machine to clear the alarm.