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12. LIST OF ERROR CODES
RH-981A
78
Errors before operation and after the EMERGENCY STOP switch is pressed
Code Explanation Resetting method
E-30
EMERGENCY STOP switch was pressed.
Release the EMERGENCY STOP switch and then press the
RESET key.
E-32 Machine head is tilted back.
Turn off the power and return the machine head to its original
position.
E-35 Air pressure is insufficient. Turn off the power and check the air pressure.
E-36
Feed plate home position sensor is OFF when it
should be ON.
Turn off the power and check that connector P9 on the control
circuit board is properly connected.
E-37
Feed plate left range sensor is OFF when it
should be ON.
Turn off the power and check that connector P9 on the control
circuit board is properly connected.
E-38
Feed plate right range sensor is OFF when it
should be ON.
Turn off the power and check that connector P9 on the control
circuit board is properly connected.
E-40
Needle up sensor is OFF when it should be
ON.
Turn the pulley by hand to raise the needle bar to its highest
position, and then press the RESET key.
E-42 Cutter sensor is ON.
Turn off the power and check that connector P3 on the control
circuit board is properly connected.
E-45 Lower thread trimming OFF sensor is OFF.
Turn off the power and check that connector P8 on the control
circuit board is properly connected.
E-50
X home position sensor is OFF when it
should be ON.
Turn off the power and check that connector P1 on the control
circuit board is properly connected.
E-51
Y home position sensor is OFF when it
should be ON.
Turn off the power and check that connector P1 on the control
circuit board is properly connected.
E-52
θ home position sensor is OFF when it
should be ON.
Turn off the power and check that connector P9 on the control
circuit board is properly connected.
Data errors
Code Explanation Resetting method
E-59 Sewing data error Turn off the power and initialize the data.
Errors during operation
Code Explanation Resetting method
E-60 EMERGENCY STOP switch was pressed.
Release the EMERGENCY STOP switch and then press the
RESET key.
E-62
Machine head is tilted back. (Head sensor is
OFF.)
Turn off the power and return the machine head to its original
position.
E-66
Feed plate home position sensor is not
activated within a specified time.
Turn off the power and check that connector P9 on the control
circuit board is properly connected.
E-67
Feed plate left range sensor is not activated
within a specified time.
1. Turn off the power.
2. Check that air is reaching the valve.
3. Check that connector P9 on the control circuit board is properly
connected.
E-68
Feed plate right range sensor is not activated
within a specified time.
1. Turn off the power.
2. Check that air is reaching the valve.
3. Check that connectors P9 and P21 on the control circuit board
are properly connected.
E-70
Needle up sensor is not activated within a
specified time.
Turn off the power and check that connector P2 on the control
circuit board is properly connected.