Error Diagnosis At Panel-Mounted Handwheels - HEIDENHAIN iTNC 530 Service Manual

24.6 Error Diagnosis at Panel-Mounted Handwheels

With the HRA 110 handwheel adapter you can connect two or three HR 150 panel-mounted
handwheels to iTNC 530.
The first and second handwheels are assigned to the X and Y axes. The third handwheel can be
assigned either through a selection switch (option) or with MP 7645.
HR 150
An additional switch enables you to select, for example, the subdivision factor for the
handwheel. The current position of the step switch is evaluated by the PLC.
The HRA 410 handwheel adapter is powered by the MC with +12 V voltage at connector X23.
Power supply OK?
If you have a test adapter, you can use it to check, whether the power supply is okay:
The HRA 110 handwheel adapter is powered in addition with +24 V voltage at connector X31.
24 – 410
max. 20 m
Connector X23 on the MC
Pin 2
Pin 4
Shut down the control and switch off the machine.
Connect the test adapter between connector X23 of the MC and handwheel adapter (See
"Test Adapter" on page 29 – 562).
Switch on the machine.
Measure, whether there are +12 V between pin 2 and pin 4.
Caution
The power supply of the handwheels is not monitored.
A defective handwheel adapter or a handwheel adapter with penetrated humidity may
influence the 12 Vdc supply voltage of the control. This can lead to various disturbances of
the control, even to a black screen. It is possible that also error messages are displayed that
do not immediately refer to a defective handwheel adapter.
In this case try to operate the control without handwheel adapter to find out whether the
disturbances and error messages mentioned still are generated on the machine.
Measure, whether there are +24 V between pin 1 (+24 V) and pin 2 (0 V).
HRA 110
X31 24 V
S2
X1
S1
X2
X3 X23
Pin layout
0 V
+ 12 V
Achswahl (Option)
AXIS SELECTION (OPTIONAL)
Unterteilungsfaktorwahl (Option)
INTERPOLATION FACTOR (OPTIONAL)
Id.-Nr. 270 909..
max. 50 m
HEIDENHAIN Service Manual iTNC 530
X23 (LE)