HEIDENHAIN iTNC 530 Service Manual page 214

Example: For fault diagnosis, proceed as follows:
Error in
X-axis
Machine
parameters used
MP 100.x = CZYX (X = 1st axis, Y = 2nd axis, Z = 3rd axis, C = 4th axis)
in example
MP 110.0 = 1 (X-axis at X1 input)
MP 110.1 = 2 (Y-axis at X2 input)
MP 110.2 = 3 (Z-axis at X3 input)
MP 110.3 = 4 (C-axis at X4 input)
MP 115.0 = %0000000000 (all inputs 1 Vpp)
MP 115.1 = %0000000000
MP 115.2 = %0000000000 (all inputs 50 kHz)
Flowchart for diagnosing an error in the position encoders circuit
a.
If necessary, you may also exchange MP 115.0 and MP 115.2.
13 – 212
Switch off main switch
Exchange X-axis encoder with
Y-axis encoder at logic unit
Switch on main switch again
When message
POWER INTERRUPT
appears, call the active parameter
list using code number 95148, and
exchange the input values of MP
110.0 and MP 110.1
Does the error
message move from
X to Y?
Yes
Error at position encoder input of
control
No
Error in position encoder or encoder
cable
HEIDENHAIN Service Manual iTNC 530