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Maincon / Mocon / Software - Troubleshooting Guide - CHC

Service Maincon / Mocon / Software - Troubleshooting Guide - CHC
Recently Updated Last updated: 01/28/2020

Maincon / Mocon / Software - Troubleshooting Guide - CHC


Maincon / Mocon / Software - Troubleshooting Guide - CHC

Jump to Section 1. Introduction 2. Symptom Table Back to Top

Introduction

The Maincon PCB is a combination of two circuit boards, the main processor and the motor controller board are sandwiched into one board. Data buss cables are no longer used unless second Mocon is used. Main processors motor controller, video, network, expanded memory and RS-232 are built onto the board.

An Expansion PCB is added to the back of the Maincon for linear or rotary scales.

  1. Address and Data Buss Ports.
  2. Low Volt Power Supply Input 5V+, 12V-, 12V+.
  3. USB, Ethernet Ports.
  4. Video Output to LCD Screen Port.
  5. SKBIF cable input .
  6. Motor Drive Signal to Servo Amplifiers, Vector Drive.
  7. 510, 520, 530, 540 I/O PCB relay drivers.
  8. Analog Inputs.
  9. 550 Inputs signals from I/O PCB.
  10. Motor Encoder Feedback Inputs.
  11. Backup Battery for BBU memory.
  12. RS-232 Serial Port.

Symptom Table

Symptom Possible Cause Corrective Action

Alarm 239 UNKNOWN MOCON1 

Alarm 799 UNKNOWN MOCON2 ERROR

The main software is outdated. The mocon is reporting an alarm that the main software does not support.  Update the software to the latest version in that series.  Note:  After updating the software the correct alarm will be displayed.
The control locks up at the "Haas" logo screen and the Mocon version is scrambled.
The FPGA or Mocon firmware is corrupted.

Reload mocon FPGA and Mocon firmware.

Refer to: Maincon PCB - FPGA Firmware (mcffXXX.rbf) - Upgrade

Maincon PCB - Mocon Firmware (MCFAxxxx.bin) - Upgrade

The FPGA or Mocon firmware upgrade failed.
The control locks up at the "Haas" logo screen and gives message languages not found.
The system languages are corrupted.
Install the languages onto the machine. Make sure to use the same software version that is on the machine.
Internal communications system is not booting up correctly.
Check the voltage from the low volt power supply to the maincon.
The languages are corrupted and the control will not load new languages during a software update.
The software language files are corrupted.

Use this procedure to clear all the language packs from the Maincon PCB.

  1. Press the [POWER ON]  and [PROG/CONVS] button (software load mode).
  2. Wait about 3 minutes to let the internal communications computer boot up.
  3. Type C A100FFF 50S

    Note: There is a space between the C and A and the F and the 5.

  4. Press [WRITE/ENTER].
  5. Wait about 3 minutes before cycling power.
  6. The control will boot up and request the software language packs.
The analog gauges display will show several readings that are not reasonable.
There is a short-circuit at the maincon analog inputs.
Refer to the Analog Sensors - Troubleshooting Guide.
There is electrical noise in the system.
Check that ferrite filters are installed. Refer to electrical noise section in Sigma 5 - Axis Servo Motor and Cables - Troubleshooting Guide.
The machine powers on in monitor mode.
The switch S1 on the Maincon is set "MON".
Make sure the switch is set to "RUN".
Multicolor screens, log out screen, black screen with blue letters, fuzzy screen occur.
A software error occured.

Refer to the following service alerts:

Multi-colored Display

Control Software Errors Can Cause Display Malfunctions

The control has a blurry screen.
A switch on the SKBIF is not set correctly.
Change the MAPSEL switch to the opposite position. Refer to Classic Haas Control - SKBIF / LCD Monitor - Troubleshooting Guide
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