HEIDENHAIN ITNC 530 Service Manual

July 2010 16 – 239
16.2.2 Checking the global drive enable I32, connector X42 / pin 33
If you can switch on the machine but cannot move with an axis/spindle, check the following:
No
Yes
Switch the control on as far as possible.
+ 24 V available at X42/PIN33?
Acknowledgment present
(green indicator or
I32 = 1) ?
Check the status of the
Drive enabling (-NE2) in the
Drive diagnostics window
(or check in the PLC TABLE, whether
I32 is set).
No
Yes
The PLC does not detect the high
level. Probably the input I32 on the
MC is defective. -> Replace the MC!
The control records the
acknowledgment! If, however, you
still cannot operate the digital
axes/spindle, please call your
machine tool builder or HEIDENHAIN!
The conditions for drive enabling
are not fulfilled (door contacts,
permissive keys etc.)
Use the circuit diagram of the machine
to check the contacts, relays, wiring, etc.
Is an
NC-STOP signal pending?
(marker 4560 = 0)?
Find the reason (e.g. break between
NC-STOP button and control or
stuck NC-STOP button) and
correct the error.
Yes
No
Checking I32

HEIDENHAIN ITNC 530 Specifications

General

Brand	HEIDENHAIN
Model	ITNC 530
Category	Control Systems
Language	English