HEIDENHAIN TNC 620 User Manual page 485

The HR 550 FS wireless handwheel features a rechargeable
battery. The battery starts charging when you put the handwheel in
the holder.
You can operate the HR 550 FS for up to 8 hours with the battery
before it must be recharged again. We recommend putting the
handwheel in the holder when it is not in use.
As soon as the handwheel is in its holder, it switches internally
to cable operation. This means you can still use it even if the
handwheel is fully discharged. The functions are the same as with
wireless operation.
When the handwheel is completely discharged, it
takes about 3 hours until it is fully recharged in the
handwheel holder.
Clean the contacts
and handwheel regularly to ensure their proper
functioning.
The transmission range is amply dimensioned. If you should
nevertheless happen to come near the edge of the transmission
area, for example, which is possible with very large machines, the
HR 550 FS warns you in time with a clearly noticeable vibration
alarm. If this happens you must reduce the distance to the
handwheel holder in which the radio receiver is integrated.
Caution: Danger to the workpiece and tool!
If interruption-free operation is no longer possible
within the transmission range the TNC automatically
triggers an emergency stop. This can also happen
during machining. Keep the distance to the
handwheel holder to a minimum. When you are not
using the handwheel, place it in the holder.
HEIDENHAIN | TNC 620 | Conversational Programming User's Manual | 10/2015
1 of the handwheel holder
Moving the machine axes 14.2
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