General Dynamics 7200 User Manual

7200 TROUBLESHOOTING
E - 5
1. If firmware is between versions 4.2.3 and 4.3.8, press the “./EXP” button on
the keypad, and keep it pressed in while cycling power to reboot the ACU. A
message will appear asking you to confirm resetting ACU to ROM defaults.
Respond with a YES, and press the ENTER button. All parameters will now
need to be re-entered into the ACU.
2. If firmware is version 4.4.7, the hinged lid on the ACU will need to be opened,
and Switch S4 located on the CPU board. It will be necessary to disconnect
the left-most ribbon cables from the I/O board and possibly the RDC board to
access this switch. Dipswitch position #8 should be moved into the ON
(down) position, and the CPU Reset button pressed (or ACU power cycled).
After about 7 seconds, the ACU will automatically reset to ROM defaults.
The Dipswitch position #8 should now be moved back into the OFF (up)
position, ribbon cables put back into place, and top lid secured. All
parameters will now need to be re-entered into the ACU.
3. If firmware is version 4.4.8 or later, Dipswitch position #7 on Switch S4
should be moved into the ON (down) position, and the CPU Reset button
pressed (or ACU power cycled). After about 7 seconds, the ACU will
automatically reset to ROM defaults. The Dipswitch position #7 should now
be moved back into the OFF (up) position, ribbon cables put back into place,
and top lid secured. All parameters will now need to be re-entered into the
ACU.
3.4 Bus Error Occurs on Boot Up
If a bus error occurs when system is booted up:
1. A problem with one or more cards on the bus prevented the CPU from
"talking" to the card(s). To determine which board has a problem, from the
Main menu, select Display system status... and Power-up test report.
2. Verify all cards are properly installed in the 7200 ACU.
3. Contact VertexRSI for support.
4.0 Soft and Hard Travel Limits
4.1 Axis Immobile With Summary Limit (Hard Limit)
This error occurs when the ACU has reached a travel limit. Because the limit is a
summary limit, the ACU cannot tell which axis has reached the limit. An immobile
error will soon be displayed, indicating which axis has reached the limit.
4.2 Summary Limit Fault (When Antenna is not in a Limit)
If a summary limit fault is detected when the antenna is not in a limit, verify that
polarization summary limits are jumpered out in the drive cabinet (TB1-7, TB1-8,
and TB1-9). See Table 4-2 (in Section 4.0 of this manual) for details.

General Dynamics 7200 Specifications

General

Brand	General Dynamics
Model	7200
Category	Control Systems
Language	English