Lenze E931Ex - Manual (Page 40)

Troubleshooting and fault elimination
Error message
7
l
40 GHB 13.0001−EN EN 3.0
Red LED is
blinking Reaction Cause Remedy
A h W O
15x þ − − − Parameter set
inconsistent Check parameter set of the drive by means
of the parameterisation software (
, 931E
Software Manual).
10x þ ¨ ¨ ¨ I 2 t error l Adjust the i 2 t time of the motor.
( , 931E Software Manual)
l Effect resolver adjustment. ( , 931E
Software Manual)
l Check set motor data. ( , 931E
Software Manual)
l Optimise controller setting. ( , 931E
Software Manual)
l Adjust travel profile (e. g. adjust
acceleration ramps).
l Reduce load torque of the motor.
9x þ ¨ ¨ ¨ Following error position
control
l Optimise controller setting to improve
the running precision. (
, 931E
Software Manual)
l Adjust travel pofile (e. g. reduce
acceleration and braking ramps.
(
, 931E Software Manual)
l Amplify following error
window/increase switch−in delay.
(
, 931E Software Manual)
8x þ − − − Resolver or SINCOS
encoder error; as the case
may be, definite
recognition only possible
after approx. ½ motor
revolution l Check correct fit of the resolver plug.
l Check resolver cable with regard to
cable breakage, short circuit.
l Check PIN assignment of the resolver
cable plug.
l Parameterise encoder correctly.
(
, 931E Software Manual)
7x þ − − − Overvoltage in the DC
bus > 70 V l Check whether power supply unit
operates correctly, and whether the
supply voltage of the power unit is
settled in the permissible range
(19.2 V DC ... 57.6 V DC).
l Decrease the steepness of the braking
ramp. (
^ 931E Software Manual)
l Connect external brake resistor to X2.
l Check whether other drives connected
to the DC supply of the power unit have
caused this overvoltage.