Okuma OSP 5000, Electrical Maintenance, Training Manual

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Okuma America Corporation
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Rev. 8-21-01
Main Board IIB Main Processor Board
The MB-IIB is the main control board for the OSP 5000/5020. It consists of a main processor
and associated interfaces for data communication. The system features a high performance
Motorola 68000 microprocessor with a clock frequency of 15Mhz. The MB-IIB controls the IC
memory (ROM), bubble memory, slave processors, and interface circuits. A system bus (mother
board or back plane) and a local bus (ribbon cables) are provided for system expansion purposes.
Typically the 5000 controls have the MB main board and the CRT display is green in color. The
5000*-G controls can have the MB-II, MB-IIA or MB-IIB main boards. These controls have
graphics capability and have a color display. The 5020* controls have the MB-IIB main board
and also have graphics and color display.
Bubble Card Bubble Memory
This memory is used to store control software, machine parameters, and part programs. Bubble
cards come in the following capacities: 4, 8, 12, and 16 Mbits. Up to two bubble cards may be
mounted on the MB-IIB, with a maximum bubble memory capacity of 32 Mbits (4 Mbytes).
The latest OSP 5020 controls (as of 11/93) are now using CMOS memory instead of bubble
memory. These CMOS memory cards have a back up battery pack mounted on them. To re-
place this battery, the main board is pulled out of the rack and the battery pack is replaced. A
“super charge” capacitor retains the memory while the battery is being replaced.
A911-1511 4Mbit X 1
A911-1512 4Mbit X 2
A911-1513 4Mbit X 3
A911-1514 4Mbit X 4
If Alarm 2045 is displayed one of two things must be done to clear the Alarm:
The first is to perform the procedure below after the Battery has been replaced. The procedure
only works if you are getting Alarm 2045 with a code of 0000010C. The 1 being the determining
factor.
1. Software Load Mode Switch on.
2. Control Power on . After booting “Control Floppy Loading Wait” will appear.
3. Press the “&” key, (Upper Case I), “C-Mos Memory Initial Test Wait” will appear.
4. Press the Load Start Button. “C-Mos Memory Initial Test Start” will appear.
5. When completed “C-Mos Memory Initial Test Finished” will appear.
6. Turn the Load Mode Switch off and push System Reset. Finished.
If a code other than 1 is displayed, the System Software must be reloaded.