HEIDENHAIN ITNC 530 - Corrective Action

18 – 304 HEIDENHAIN Service Manual iTNC 530
18.2.7 Corrective action
Motor encoder in a
synchronous motor
If you have found that the motor encoder in a synchronous motor is defective
(synchronous motors from HEIDENHAIN are designated QSY xxx, they are used for machine
axes):
8 Exchange the entire synchronous motor!
Motor encoder in
an asynchronous
motor
If you have found that the motor encoder in an asynchronous motor is defective:
(asynchronous motors from HEIDENHAIN are designated QAN xxx, they are used for spindles):
8 Exchange either the entire asynchronous motor or the motor encoder.
If you want to exchange the motor encoder of the asynchronous motor:
8 Read the instructions in the service manual "Inverter Systems and Motors".
8 Use the enclosed mounting instructions (all motor encoders are supplied with mounting
instructions).
Control If you have found out that the motor encoder interface on the control is defective:
8 Replace the CC. --> See “Exchange of the CC” on page 28 – 551.
Caution
Motor encoders in synchronous motors must be adjusted to a certain position.
The adjustment is made by the motor manufacturer.
In addition, new motors can have an electronic ID label. This electronic ID label for the
motor is stored in the EnDat motor encoder. When exchanging the motor encoder, the
electronic ID label must be written again.
This is done by the motor manufacturer.
DANGER
EnDat encoders offer the possibility of storing machine or system-dependent data in the
memory area reserved for the machine tool builder. The data may comprise safety-
relevant information.
Ask your machine manufacturer whether and which information has been written to the
EnDat encoder. Ensure that the replacement unit also contains this information!
Failure to do so may result in machine damage or personal injury!