Test Mode; Test Mode Start - JUKI LK-1900AN Engineer's Manual

6. Test mode

When the test mode is started, it is possible to carry out maintenance and inspection.

(1) Test mode start

1. When the key is continuously pressed for 3 seconds in the state that the
sewing LED is turn off, the buzzer sounds and test mode start can be selected,
with the user level setting mode of the memory switch kept effective.
(Caution) The test mode cannot be selected unless the
pressed for more than 3 seconds.
2. Change the memory switch No. with the
mode.
3. Press the key. The selected test mode is assumed and a display output
test can be started. In regard to the contents of the display output test, refer to
"(2) Display output test."
4. Press the key. The display output test is finished and operation moves to
the selection of another test feature.
5. Select the test program No. by the use of the
Test program No.
Input signal check
XY motor / origin sensor check
Continuous operation
Main motor rpm check
Output check
Work clamp foot / thread trimmer
motor and origin sensor check
Needle thread clamp motor and
origin sensor check
Software version display
6. Press the key and define the test program number.
7. For each program, the test program can be closed when the
The condition of 5. recovered.
However, the continuous operation mode cannot be canceled if it is once assumed.
To close this mode, it is necessary to turn off the power supply.
,
Test program
The conditions of switches and sensor inputs are dis-
played at the LED.
Inching operation of the X/Y motor, operation of origin
retrieval, and the status of X/Y origin sensors are dis-
played.
After the setting of continuous operational conditions,
the continuous operation mode is assumed.
The sewing machine is started based on the preset
rpm, and the measured rpm number is displayed.
Output is maintained for the LK-1901AN material draw-
ing magnet.
Inching operation of the work clamp foot / thread trim-
mer motor, operation of origin retrieval, and the status
of presser origin and presser sensors are displayed.
Inching operation of the needle thread clamp motor,
operation of origin retrieval, and the status of needle
thread clamp origin and needle thread clamp sensors
are displayed.
The software versions of the MAIN and SDC boards are
displayed.
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key is
keys to select the test
, keys.
Descriptions
key is pressed.