Possible Causes Of Error; Trouble Shooting On The Cc 422 - HEIDENHAIN iTNC 530 Service Manual

Drive control board
2
The the encoder inputs and PWM outputs are only be selected via MP120.x/MP121.x.
All speed encoder inputs operate with 1 Vpp and areEnDat-compatible.
For digital axes the speed encoders are always monitored!
Motor encoders with EnDat interface can be provided with a so-called electronic ID label.
It contains the motor data, such as device name, ID number, serial number, etc.

17.2.2 Possible Causes of Error

17.2.3 Trouble Shooting on the CC 422

To find out whether the connected encoder or the control interface is defective, you can operate
the encoder with another interface of the control. Use the interface of a functioning axis.
Example for CC 422: For fault diagnosis, proceed as follows:
Error in X-axis
Example machine
parameters
MP 100.x = CZYX (X = 1st axis, Y = 2nd axis, Z = 3rd axis, C = 4th axis)
MP 112.0 = 15 (X-axis at X15 input)
MP 112.1 = 16 (Y-axis at X16 input)
MP 112.2 = 17 (Z-axis at X17 input)
MP 112.3 = 18 (C-axis at X18 input)
May 2006
PWM output
(MP120.x/MP121.x)
X60
Caution
The service on the CC 424 and CC 422 is different.
Ensure to use the correct instructions!
Contamination by condensed oil, grease, water
Signal socket damaged
Cable damaged
Signal may be disturbed by high frequency, strong magnetic fields, etc.
Penetration of humidity
Encoder electronics (e.g., light unit) defective
Motor encoder is loose (e.g., loose or defective coupling between motor encoder housing
and motor housing)
Strong vibrations on the machine
Defective interface on the control
Caution
If the motor is wet and possibly also the motor encoder, what may result in a short circuit,
it must not be connected any more!
Speed encoder input
X83
17 – 287