Download and fillout the SKBIF Inspection Report Checklist below before replacing any parts.
|Symptom||Possible Cause||Corrective Action|
|Machines with SKBIF Version 6.xx. Alarm 546 SERIAL KEYBOARD COMMUNICATION FAULT.||The SKBIF firmware is outdated.||Make sure you have SKBIF firmware version 6.6 or higher.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 LCD turns to a black screen. Alarm 967 SKBIF COMMUNICATION FAULT.||There is a problem with the communication cable from Main PCB to SKBIF PCB.||See SKBIF Troubleshooting section below.|
|The supply voltage from PSUP PCB to SKBIF PCB is not correct.|
|The backlight and LCD data cables are not connected correctly.|
|The wires to the [POWER ON], [POWER OFF], [EMERGENCY STOP], [FEED HOLD] and [CYCLE START] contactors terminals are loose.|
|The beacon light does not turn on.||The beacon light cable is not connected.||Make sure the beacon light is connected to SKBIF at P10.|
|The control has a blurry screen.||
A switch on the SKBIF is not correctly set.
|Change the MAPSEL switch to the opposite position. See the section below.|
|The screen flickers during spindle deceleration (running spindle then pressing "Reset" key) or during heavy cuts.||The cable from the Maincon PCB connected J9 to the SKIBF at J28 is defective.||
|The RJ-45 connector housing is damaged on the SKIBF or Maincon PCB.||Make sure the RJ-45 connector housing is solder to the PCB and not loose.|
|You get a blank screen with continuous beeping at power on.||The jog handle or wiring is defective.||
|Machines with software version prior to 100.17.000.2034 . The control freezes, blank monitor, black screen, keypad not working, won't boot sometimes, random shutdowns, or software alarms.||Caused by a software error.||Refer to the: Next Generation Control - Maincon / Software Update Troubleshooting Guide|
|Alarm 2001 EMERGENCY STOP SWITCH ERROR
||There is a loose connection from the E-stop button to the SKBIF PCB.
|LCD Touchscreen. Turned setting 381 to On, but the touchscreendoes not respond to touch commands.||The touchscreen feature is not enabled.||To enable the Touchscreen set setting 381 Enable Touchscreen to On.|
|The configuration files are outdated.||As of software version 100.19.000.1400 or higher a parameter 2257 Touchscreen Suport has been added, this parameter must be set to TRUE. If not you will need to contact the service department to have it enabled.|
The TouchScreen does not respond to touch commands.
|The touchscreen feature is not enabled.||To enable the Touchscreen set setting 381 Enable Touchscreen to On.|
|The touchscreen is not calibrated.||Use the touchscreen configuration page to calibrate, test, and restore default settings.
The touchscreen configuration is located in the maintenance section.
Press [DIAGNOSTIC] to go to the Maintenance and navigate to the Touchscreen tab.
Follow the instructions on the screen. After calibration you need to cycle power.
|The touchscreen USB cable is not connected correctly to the SKBIF PCB.||Make sure that the USB cable connection is connected to J21 at SKBIF PCB.|
Some tabs look dark as they have been pushed.
|This is normal, this is used to distiguish the family of tabs the current screen is showing.|
|The sound of the beeper only works when I power on the machine.||The beeper volume setting is turned off.||Go to setting 356 and set to a value higher than 0.|
|The beeper volume is low or inaudible.||The SKIBF PCB or beeper is defective.||Machines with SKBIF (34-4510) PCB the beeper is built into the SKIBF. This beeper can not be tested, check for voltage going to the SKIBF, if everything checks out ok then the SKIBF PCB is defective. Note: Do not replace the speaker, the speaker does not produce the beeper sound.
Machines with SKIBF (34-4243G) PCB the beeper is mounted outside and connected to the SKIBF. This beeper can tested with a 9V battery.
The following table applies to -4510X SKIBF PCB.
|LE1 (PASS/EQ, Lock)||Amber||This is normal condition. The SKBIF and Main PCB are communicating.|
|LE1 (PASS/EQ, Lock)||Red||The communication between the Main PCB and SKBIF PCB is lost or no signal. Check the RJ45 cable connected to SKIBF at J28 to Main PCB J9, make sure the cable is not damaged or it has a loose connection. To test the cable refer to Network Cable Tester Tool procedure.|
The following table applies to -4243X and -4241X SKIBF PCB.
|LE1 SYNC||OFF||This is normal condition. The SKBIF and Main PCB are communicating.|
|LE2 (PASS/EQ, Lock)||AMBER|
|LE1 SYNC||GREEN||The communication between the Main PCB and SKBIF PCB is lost or no signal. Check the RJ45 cable connected to SKIBF at J28 to Main PCB J9, make sure the cable is not damaged or it has a loose connection. To test the cable refer to Network Cable Tester Tool procedure.|
|LE2 (PASS/EQ, Lock)||RED
SKBIF Diagram P/N 34-4243G
SKBIF Diagram P/N 34-4510