Malfunctions with Indications 2-23
Current Processor Faults
No. Name Description Recovery
CP-01 Three-Phase
Power Not On
CP-02 Bckgnd
Scheduler Fault
(Hard)
Internal processor error detected. A coast stop will
be initiated.
Execute SYSTEM RESET or cycle power and attempt
normal operation. If the fault reoccurs, replace Main Control
Board.
CP-04 Interrupt Timeout
(Hard)
Internal processor error detected. A coast stop will
be initiated.
Execute SYSTEM RESET or cycle power and attempt
normal operation. If the fault reoccurs, replace Main Control
Board.
CP-05 Logic Power
Supply Loss
(Soft)
(Parameter 101
bit 1 when
Parameter
630=0)
The 5V logic or 12V logic power supply has been
detected as being out of tolerance. A coast stop will
be initiated.
Use a digital multimeter to measure the +5V logic supply
from TP51 (+5V) to TP52 (DGND) on the Main Control
Board. If the supply is not within a 0.15V tolerance replace
the unit Power Supply. Likewise test the 12V supplies. The
+12V supply can be measured from TP55 (+12V) to TP57
(AGND). The –12V supply can be measured from TP56 (–
12V) to TP57. If either supply is not within the tolerance
listed in
Table 3.C then replace the unit Power Supply.
If power supplies are OK, replace the Main Control Board.
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