Siemens SINUMERIK 840D sl Operating Manual page 812

HT 8
20.1 HT 8 overview
Commissioning Manual SINUMERIK Operate (IM9) / SINUMERIK 840D sl
Customer keys
The four customer keys are freely assignable and can be set up customer-specifically by the
machine manufacturer.
Integrated machine control panel
The HT 8 has an integrated machine control panel consisting of keys (e.g. start, stop, traversing
keys, etc.), and keys reproduced as softkeys (see machine control panel menu).
See Section "Controls on the machine control panel" for a description of the individual keys.
Note
PLC interface signals that are triggered via the softkeys of the machine control panel menus
are edge triggered.
Enabling button
The HT 8 has two enabling buttons. Thus, you can initiate enabling functions for operations
that require enabling (e.g. displaying and operating of traversing keys) with either your right
hand or your left hand.
Enabling buttons are available for the following key positions:
● Released (no activation)
● Enabling (center position) - enabling for channel 1 and 2 is on the same switch
● Panic (completely pushed through)
Traversing keys
To traverse the axes of your machine using the traversing keys of the HT 8, you must select
"JOG" mode or either the "Teach In" or "Ref.Point" submode. Depending on the setting, the
enabling button must be activated.
Virtual keyboard
A virtual keyboard is available for the easy entry of values.
812
Machine manufacturer
Please refer to the machine manufacturer's specifications.
Machine manufacturer
Please refer to the machine manufacturer's specifications.
Operating Manual, 05/2017, A5E40868721
Turning