Mitsubishi Electric Q Series Programming Manual page 268

APPENDICES
Error
code
Name
• Machine struck.
• Accuracy at initial magnetic pole
detection is bad.
• Wrong wiring of the servomotor wires
(U, V, and W).
• Linear encoder resolution differs from
the setting value.
Initial magnetic
pole detection
2027
error
• Mismatch of the linear encoder mounting
direction.
• Magnetic pole detection limit switch is
not on.
• The temperature of linear encoder is
high.
Linear encoder
2028
error 2
• The signal level of linear encoder has
dropped.
Table 2.3 Servo error (2000 to 2899) list (Continued)
Error cause
Description
Error check
processing
• Servo amplifier
power on.
• Multiple CPU
system power on.
Immediate
Any time during
operation
APP - 23
Error
Corrective action
• Check the machine.
• Review the parameter No.PS09
setting (magnetic pole detection
voltage level).
• Correct the wiring.
• Review the parameter No.PS02
and PS03 setting (linear encoder
resolution).
• Check the mounting of linear
encoder.
• Check the mounting direction of
linear encoder.
stop
• Connect the magnetic detection
limit switch correctly.
• Set the limit switch to forced ON
by the parameter No.PD02
setting. (When the amplifier input
is used in the Motion CPU, do
not set to forced ON since it is
shared with the input signal.)
• Check the temperature of linear
encoder and contact with the
linear encoder manufacturer.
• Check the mounting of linear
encoder.