PAT DS150 - Page 51

Error Codes
44
Error Code
E41
E42
E43
E45
E46
E48
E49
E51
Error
Error in the internal
write/read memory
(RAM) of the
computer
component 80C537
Error in the external
write/read memory,
1st part (RAM)
Error in the external
write/read memory,
2nd part (RAM)
Redundancy error
in the A/D
conversion
Error in the A/D
converter uPD
7004 of the
processor board.
Cyclic RAM test:
error in the internal
write/read memory
(RAM) of the
computer
component 80C537
Error in the crane
data EPROM or
EEPROM.
Cause
 Computer component
80C537 defective
 CPU module defective
 Processor board
defective.
 Write/read memory
(CMOS RAM) or
processor board
defective.
 Refer to E42
 The A/D converter on the
processing board and the
redundant A/D converter
in the CPU 80C537
provide different results.
 No acknowledgment of
the A/D converter uPD
7004
 Computer component
80C537 defective
 CPU module defective
 Processor board
defective.
 No valid data in the crane
data EEPROM.
 Memory module wrongly
bridged.
 Crane data EPROM
defective
Elimination
 Replace computer
component 80C537.
 Replace CPU module.
 Replace processor board
with CPU module.
 Replace processor board
with CPU module.
 Refer to E42
 Replace processor board.
 Replace processor board.
 Replace computer
component 80C537.
 Replace CPU module
 Replace processor board
with CPU module.
 Load crane data EEPROM
containing valid data.
 Bridge memory module acc.
to memory type
 Replace crane data EPROM