398 HEIDENHAIN Technical Manual iTNC 530 HSCI
The following situations lead to an emergency stop through the wireless
handwheel system:
The HR 550FS wireless handwheel is switched off outside of the
HRA 551FS handwheel adapter.
The radio communication between the HR 550FS wireless handwheel and
the HRA 551FS handwheel adapter is interrupted.
The charge of the handwheel battery becomes too low.
The handwheel requires no maintenance work as long as the HR 550FS can
be operated in conjunction with the HRA 551FS without disturbances or error
messages. In the event of a fault, please inform your service agency. The only
expendable part of the HR 550FS are the rechargeable batteries. If you notice
a marked decrease in battery life, it's time to exchange them (handwheel
batteries, ID 623 166-02).
Revised variants:
HR 550FS mobile wireless handwheel: ID 598 515-03
HR 550FS mobile wireless handwheel (with detent)ID 606 622-03
HRA 551FS base and charging station for HR 550FS: ID 731 928-02
In mid-2012, the wireless handwheel system was revised with respect to the
radio connection. During this modification, the transmitter-receiver electronics
of the wireless handwheel system was improved significantly regarding the
sensitivity to interference.
Please note that the previous versions of the HR550FS and HRA551 and the
new, revised versions cannot be exchanged with each other anymore. This
means that both units (HR and HRA) must be replaced if replacement of a HR
550FS (variant -02 by -03) or HRA 551FS (variant -01 by -02) is necessary.
Moreover, HEIDENHAIN recommends an update of the control hardware to
the NC software 34049x-07 SP5, NC-Software 60642x-02 SP5 or higher due
to further improvements in communication with the control.
The power-up test of the HR 550FS must be repeated within no more
than 168 hours. The HR 550FS handwheel and the HRA 551FS
handwheel adapter must be turned off and on again to conduct the test.
It must be ensured by the PLC program that this requirement is met.
To guarantee the HR's emergency-stop and permissive-button safety
functions, the respective contacts must be connected to the emergency
stop chain and further safety circuits (if present) or safe inputs of the
control.
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