TM 5-3810-307-10
8 ERROR CODES - continued
ERROR
ERROR
CAUSE
ACTION
CODE
Internal defect in digital part
Replace main board and reset
Malfunction in the
E48
of CPU.
pressure channels. See
monitored write/read
Drawing 3 & Procedures 3
memory
and 4.
Error in data memory
Data EPROM on the main
Replace Data EPROM. Make
E51
board is defective.
sure BR3 on the main board is
installed. See Theory 1.
a.) Anti-Two Block relay is
Incorrect
a.) Replace 1. relay.
E71
stuck or defective.
acknowledgment of the
b.) Anti-Two Block relay is not
"1" Relay on the terminal
b.) Check terminal board
being selected due to a break
board A101
A101, main board and ribbon
on the terminal board A101,
cables as well as replace
main board or ribbon cables.
defective part, if necessary.
Similar to E71 for the
Similar to E71 for the relays 2 Similar to E71 for the relays
E72-
relays 2 thru 7
thru 7.
2..7.
E77
The operating mode switch in Lower the load and set the
Change of the operating
E89
operating mode switch
code during lifting a load
the console was used while
correctly to the code assigned
lifting a load.
to the actual operating mode
of the crane.
a.) Check 24V at terminal X1
a.) 24V supply of console is
No data transmission
E91
of console electronics.
interrupted.
from console to central
b.) Check the connection
b.) lnterruption or accidental
unit (See Section 8)
between console electronics
ground in the line from
console electronics to central and central unit.
c.) If you find an accidental
unit.
ground, the transmitter
c.) Transmitter/receiver
module in the console
module is defective.
electronics can be damaged.
You should, therefore,
replace the console
electronics. Replace console
electronics or main board
respectively. See Procedure
3
a.) Temporary interruption of a.) Check the connection
Error in the data
E92
between console electronics
the data line from console
transmission from
and central unit.
electronics to central unit.
console to central unit
b.) Transmitter/receiver
(See also Section 8)
module is defective.
Change 1 G-39
