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8. ELECTRICAL MECHANISM
128
BAS-311G, BAS-326G
Problem #7 When the foot switch is depressed, an error code is displayed.
Cause Inspection/Remedy/Adjustment Replacement if a malfunction
1. If the X feed moves slightly and
then [E200] is displayed, there is
a malfunction of the encoder.
1) Check that connector P20 (X-ENC) is
inserted into the main P.C. board.
2) Check the encoder input while referring to
“2-8. Input checking method”.
Pulse motor X assembly
2. If the X feed moves and then
[E200] is displayed, there is a
malfunction of the X home
position sensor.
1) Check that connector P8 (SENSOR1) is
inserted into the main P.C. board.
2) Check the X home position sensor input
while referring to “2-8. Input checking
method”.
3) If a metallic object is brought close to the X
home position sensor and the LED inside the
sensor does not illuminate, there is a
malfunction of the sensor.
4) If it illuminates, the home position dog is
incorrectly adjusted.
Switch to home position adjustment mode,
and adjust the position of the home position
dog. (Refer to “7-20. Adjusting the home
position”.)
X home position sensor
3. If the feed mechanism does not
move and [E200] is displayed,
there is a malfunction of the
pulse motor or cord.
1) Disconnect connector P10 (XPM) from the
PMD P.C. board, and measure the resistance
between pins 1-2 and 3-4 at the cord-side
connector.
OK if 2−3 Ω
After measuring, insert P10.
2) If 1) is OK, there is a malfunction of the PMD
P.C. board.
Pulse motor assembly
PMD P.C. board
Problem #8 When the foot switch is depressed, an error code is displayed.
Cause Inspection/Remedy/Adjustment Replacement if a malfunction
1. If the Y feed moves slightly and
then [E210] is displayed, there is
a malfunction of the encoder.
1) Check that connector P4 (Y-ENC) is inserted
into the main P.C. board.
2) Check the encoder input while referring to
“2-8. Input checking method”.
Pulse motor Y assembly
2. If the Y feed moves and then
[E210] is displayed, there is a
malfunction of the Y home
position sensor.
1) Check that connector P8 (SENSOR1) is
inserted into the main P.C. board.
2) Check the Y home position sensor input
while referring to “2-8. Input checking
method”.
3) If a metallic object is brought close to the Y
home position sensor and the LED inside the
sensor does not illuminate, there is a
malfunction of the sensor.
4) If it illuminates, the home position dog is
incorrectly adjusted.
Switch to home position adjustment mode,
and adjust the position of the home position
dog. (Refer to “7-20. Adjusting the home
position”.)
Y home position sensor
4885Q