User manual

Brick Controller User Manual
Troubleshooting 195
Reset Switch SW (Factory Reset)
This momentary switch button is used to reset the Brick Controller back to factory default settings, global
reset.
Caution
Issuing a SAVE after power up (with the reset switch held down) will
permanently erase any user configured parameters.
Reset SW instructions: Power down the unit then power back up while holding the Reset SW switch
down. Release the Reset SW once the unit is powered up. The factory default parameters are now restored
from the firmware EEPROM into the active memory. Issue a SAVE and a $$$ to maintain this
configuration.
For traditional PMAC users, this switch is the equivalent of Jumper E51 on PC or standalone boards.
Watchdog Timer
On a Brick Controller, the watchdog timer trigger illuminates the red WD LED and interrupts
communication. It occurs if any of the following applies:
 PMAC CPU over-clocked:
In this mode, the CPU signals that is has been overloaded with computation and cannot
accomplish tasks in a timely manner. e.g. bad programming such as an infinite loop, or too much
computation (Kinematics) requiring faster CPU option.
 Wrong clock settings:
In this mode, the user has downloaded or written bad values to clock setting parameters.
 Hardware +5V failure (internal):
In this mode, the internal 5V logic circuitry has failed. Check 5V Led Status.
 Downloading wrong configuration file (I4900):
In this mode, the user has reloaded a configuration file uploaded from a 4-axis unit (Servo IC 1
parameters set to zero) into an 8-axis unit, thus writing zero to the second Servo IC clock
parameters. Commenting out variables I7100…7106 (or forcing them to hold the same values as
I7000…I7106) eliminates the watchdog problem.