18 – 296 HEIDENHAIN Service Manual iTNC 530
18.2.3 Trouble shooting on the CC 422
To find out, whether the connected encoder or the interface of the control is defective, the
interchange method can be used. Use the interface of a working axis for this purpose.
Example Error in X-axis
Example machine
parameters
Block diagram
When troubleshooting do not connect obviously defective devices (e.g. motor encoder with
short circuit caused by ingress of moisture) to other interfaces of the control.
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)
Always switch both the cable and the interface assignment by machine parameter!
Encoders can only be switched within the main DCB and the auxiliary DCB!
Master and slave axes must always be connected to the same drive-control board.
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