Installation manual

Danaher Motion Kollmorgen Troubleshooting
SERVOSTAR
®
S and SERVOSTAR
®
CD Series 95
• Memory reliability: During the initialization process upon power up,
the run time, variables memory (RAM - Random Access Memory), and
the program memory (EPROM - Electrically Programmable Read Only
Memory) are tested.
If a RAM fault is detected, an ‘I’ is displayed and the drive is halted. If
an EPROM fault is detected, a ‘c’ is displayed and the drive is halted.
The non-
volatile memory (EEPROM) is also checked for integrity upon
power-up. Any discrepancy in this data is noted with an ‘e’ in the status
display. After power-
up is successfully completed, any subsequent fault
in the operation of the EEPROM is noted with an ‘E’ in the status
display.
• WatchDogs: In addition, the SERVOSTAR incorporates a watchdog
system to maintain software operation integrity. Failure of the
watchdog mechanism will display three bars on the status display and
cause the drive to halt. This normally indicates serious problems.
Please contact the factory for support.