ITEM C 3-Series - Page 139

Service functions and error messages
Page 139
Error message
Meaning of the error message
Measures
Main
index
Sub index
Action: Error may occur with SIN/COS and Hiperface
encoders.
 Check the position encoder.
 Check the connection wiring (broken wire,
short between two signals or signal /
screening).
 Check the supply voltage for the position
encoder.

Check the motor cable / screening on motor
and drive side – EMC malfunctions may
trigger the error.
2 SINCOS encoder [X2B] - Standstill >
24 hrs
Cause: Input signals of the SinCos encoder have not
changed by a minimum amount for 24 hours
(when safety function is requested).
Action: Terminate SS2 or SOS and move axle at least
once during this time.
3 Resolver [X2A] - Signal error Cause:
 Vector length sin²+cos² is outside the
permissible range.
 The amplitude of one of the two signals is
outside the permissible range.
 Input signal is static (same values to right
and left of maximum).
Action:
 Check the resolver.
 Check the connection wiring (broken wire,
short between two signals or signal /
screening).
 Check for a failure of the primary radiator
signal
 Check the motor and encoder cable /
screening on motor and drive side. EMC
malfunctions can trigger the error.
7 Other encoder [X2B] - Faulty angle
information
Cause:
 “Angle faulty” message is sent from basic
device when status lasts for longer than the
allowed time.
 Encoder at X2B is analysed by the basic
device.
 Encoder is faulty.