July 2010 4 – 37
8BD0 Excessive
servo lag in <axis>
The following error of a moving axis is
greater than the value given in machine
parameter MP1720.x (in lag mode) or MP
1420.x (feedforward mode).
The acceleration entered is too large.
The motor is not moving even though drive-
on was given.
Reduce the feed rate and increase the
spindle speed.
Remove potential sources of vibration.
The motor current must not be limited
during acceleration.
Overloaded driver
Insufficient lubrication
Mechanical stiffness
Machine vibration
Hardware error in the control loop
For analog axes: servo defective
Check the lubrication.
Remove mechanical stiffness.
Analog axes: Check the servo.
Check the acceleration.
See “Sequence for Finding Errors in the
Control Loop” on page 6 – 62.
Carry out offset adjustment (See “Adjusting
the electrical offset (drift adjustment)” on
page 20 – 349).
Carry out speed adjustment (See “Speed
adjustment at the servo amplifier
(tachometer adjustment)” on page 20 –
352).
8BE0 Encoder
defective <axis>
Incorrect nominal distance between two
reference marks
Check the entry in the motor table and
MP2206.x.
Check the entry in MP334.x.
Check if the reference signal is disturbed.
See “Encoder Interface” on page 18 – 277.
8BF0 Input
frequency from
speed encoder
<axis>
Noise on speed encoder signals Check the encoder signals.
Check the shielding.
See “Further Examination of Position and
Speed Encoders” on page 18 – 308.
8C00 Input
frequency from
position encoder
<axis>
Noise on position encoder signals Check the encoder signals.
Check the shielding.
See “Further Examination of Position and
Speed Encoders” on page 18 – 308.
8C10 <axis>
motor encoder
defective
No encoder signal available
Interruption in motor encoder cable
Signal amplitude of motor encoder is
missing or too small.
Check connection of motor encoder.
Check the motor encoder.
Check the amplitude of the encoder signal.
See “Speed En
coders” on page 18 – 293.
See Service Manual Inverter Systems and
Motors.
A080 CC%d
operating state
not equal MC
The automatic SRG, SBH, and SH operating
states of the MC and CC are compared
cyclically. If the values remain unequal for
longer than 500 ms, a Stop 1 is released.
Press CE to acknowledge the error
message.
Switch on the machine.
Check the software version.
Error message Possible cause of error Measures for error diagnosis and/or
corrective action
Additional information and descriptions in
the manual
Additional information and descriptions in
the manual