ELECTRICAL SYSTEM 2250 SERVICE/MAINTENANCE MANUAL
3-26
Published 07-19-16, Control # 249-01
* = Optional
Table 3-5. Table Notes and Abbreviations
MAST ACCUMULATOR The mast stop cylinders, MAX-ER luffing
jib stop cylinders, or accessory system
pressure is not in range.
See ACCUM diagnostic screen to determine
the cause of fault and correct the problem as
soon as possible.
BATTERY VOLTAGE LOW The system voltage is below 11 Volts. Handle commands are disabled.
IO BOARD FAULT n The CPU is not communicating with the I/
O board n, where:
1 – first I/O board after the CPU
2 – second I/O board after the CPU
4 – third I/O board after the CPU
8 – fourth I/O board after the CPU
Failure of more than one board is
indicated by an n value that is the sum of
the n values associated with each board
(if n=6, the second and third I/O boards
after the CPU may have failed).
Check for a loose or damaged I/O board.
Reposition and reconnect the boards in the
circuit to see if the problem moves with the
location. If the indicated fault code n does not
change, the problem is most likely in the
mother board or the CPU board.
See Programmable Controller (PC) I/O Board
Fault Troubleshooting on page 3-35 for more
information.
Display Reading Cause of Fault Function Response
Abbreviation Definition
*
[1]
Optional item
The maximum angle at which the boom will stop
varies with each attachment. See Boom
Section 4
for the maximum angle at which the boom stops.
+
-
%
A1
A2
A3
ANG
AUX
BHITCH
CLAM
CTWT
D1
D2
D3
DEG F
HYD
LUFF
MIN
MAX
MXR
PRESS
PSI
PSIA
RPM
SYS
TEMP
Plus
Minus
Percent
Handle Inputs
Pump Control Outputs
Programmer’s Screen
Angle
Auxiliary
Backhitch
Clamshell
Counterweight (MAX-ER)
On-Off Inputs
Digital Inputs
Digital Inputs or Outputs
Degrees Fahrenheit
Hydraulic
Luffing
Minimum
Maximum
MAX-ER 2000
Pressure
Pounds Per Square Inch
Pounds Per Square Inch Absolute
Revolutions Per Minute
System
Temperature
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