Mitsubishi Electric Q172CPU Programming Manual page 597

APPENDICES
Error
code
Name
• An overload current of about 200[%]
continuously supplied to the servo
amplifier or servomotor.
2050 Overload 1
• The servo amplifier or servomotor was
overloaded at a torque close to the
maximum torque (95[%] or more of
the current control value).
2051 Overload 2
• The droop pulses of the deviation
counter exceeded the error excessive
alarm level set in the servo
parameters.
Error
2052
excessive
Table 2.13 Servo error (2000 to 2799) list (Continued)
Error cause
Description
Error check
processing
Any time during Immediate
operation
APP - 36
Error
Corrective action
• Check if there has been a
collision at the machine.
• If the load inertia is very large,
either increase the time constant
for acceleration/deceleration or
reduce the load.
• If hunting occurs, adjust the
position loop gain in the servo
parameters.
• Check the connection of U, V, W
of the servo amplifier and
servomotor.
• Check for disconnection of the
encoder cable.
• Replace the servomotor.
• Check if there has been a
collision at the machine.
• If the load inertia is very large,
either increase the time constant
for acceleration/deceleration or
reduce the load.
• If hunting occurs, adjust the
position loop gain/position
control gain 1, 2, speed loop
gain/speed control gain 1, 2 in
stop
the servo parameters.
• Check the connection of U, V, W
of the servo amplifier and
servomotor.
• Check for disconnection of the
encoder cable.
• Replace the servomotor.
• If the voltage of the bus in the
servo amplifier has dropped
(charge lamp has turned off),
replace the servo amplifier.
• Check if there has been a
collision at the machine.
• Increase the time constant for
acceleration/deceleration.
• Increase the position loop
gain/position control gain 1, 2, in
the servo parameters.
• Check for disconnection of the
encoder cable.
• Replace the servomotor.
• If the voltage of the bus in the
servo amplifier has dropped
(charge lamp has turned off),
replace the servo amplifier.