Great Plains 3N-4025P Operator Manual - Manual (Page 136)

132 3N-40P Table of Contents Index Great Plains Manufacturing, Inc.
196-538M Table of Contents Index 2014-01-29
Calibration Troubleshooting:
If the time to run for calibration is less than 4 seconds,
the cab console will display TIME TOO LOW.
Pressing the FUNCTION button will bring up the ENTER
TARGET AMOUNT screen. The target should be raised
to increase the calibration time. If the time is greater than
255 seconds, the cab console will display TIME TOO
HIGH. Pressing the FUNCTION button will bring up the
ENTER TARGET AMOUNT screen. The target should be
lowered to decrease the calibration time.
If modest adjustments to the sample size continue to
result in HIGH/LOW errors, chances are some other
parameter is zero or incorrect by a large factor (such as
decimal place error). To start over, press OFF, and then
ON.
While rate calibration is running, one of four error
messages may be displayed:
Message Cause Solution
COMM
TIMEOUT Power to or
communication
with the external
controller was
interrupted during
calibration. Check power
and
communication
connections
from the cab
console to the
external
controller and
rerun calibration.
TIME
OVER
LIMIT The external
controller module
ran too long in
calibration. Rerun
calibration. If the
same message
appears, call
technical
support.
USER
TERMINATED The ENGAGE
button was
pressed during
calibration. Rerun
calibration.
CALIBRATE
ERROR The drive did not
turn when
calibration began. Check encoder
cable and
connection,
solenoid cable
and connection,
and hydraulic
lever position.