Siemens SINUMERIK 840D sl Operating Manual page 146

HT8
8.10 Backing up data
It also has membrane keys for traversing the axes, for numeric input, for cursor control, and
for machine control panel functions like start and stop.
It is equipped with an emergency stop button and two 3-position enabling buttons. You can
also connect an external keyboard.
References
For more information about connection and start-up of the HT8, see the following references:
CNC Commissioning: SINUMERIK 840D sl Operator Components and Networking
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 HT8 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 chapter "Controls on the machine control panel" for a description of the individual keys.
Enabling button
The HT8 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
In order to traverse the axes of your machine using the traversing keys of the HT8, you must
select "JOG" mode or either the "Teach In" or "Ref.Point" submode. Depending on the
setting, the enabling button must be activated.
146
Machine manufacturer
Please also refer to the machine manufacturer's instructions.
Machine manufacturer
Please also refer to the machine manufacturer's instructions.
Operating Manual, 11/2006, 6FC5398-6AP10-1BA0
HMI sl Universal