Siemens SINUMERIK 828D Function Manual

Z1: NC/PLC interface signals
19.2 Axis monitoring, protection zones (A3)
Basic Functions
1652 Function Manual, 09/2011, 6FC5397-0BP40-2BA0
19.2 Axis monitoring, protection zones (A3)
19.2.1 Signals to channel (DB21, ...)
DB21, ...
DBX1.1 Enable protection zones
Edge evaluation: yes Signal(s) updated: Cyclically
Signal state 1 or
edge change
0 → 1
When a positive edge of this signal appears, a protection zone is enabled and the active alarm
cleared. Then, motion can start in the same protection zone. As a result of the start of motion, the
protection zone is enabled, the IS "machine or channel-specific protection zone violated" is set, and
the axis starts to move.
The enabling signal is canceled if motion is started that does not lead into the enabled protection
zone.
Signal state 0 or
edge change
1 → 0
No effect
Application
example(s)
This allows protection zones to be released:
• if the current position is within a protection zone (alarm 2 present)
• if motion is to be started towards the protection zone limit
(alarm 1 or 2 present)
DB21, ...
DBX8.0 - DBX9.1 Activate machinespecific protection zone 1 ( ...10)
Edge evaluation: No Signal(s) updated: Cyclically
Signal state 1 or
edge change
0 → 1
The pre-activated, machinerelated protection zone 1 ( ...10) is activated by the PLC user program.
The protection zone is immediately activated.
Only protection zones that have been pre-activated in the part program can be activated.
Signal state 0 or
edge change
1 → 0
The pre-activated, machinerelated protection zone 1 ( ...10) is de-activated by the PLC user
program.
The protection zone is immediately de-activated.
Only protection zones that have been activated via the PLC and have been pre-activated in the NC
part program can be de-activated.
Application
example(s)
Before a sensor, for example, is moved into the working range, the relevant machinerelated
protection zone can be activated.
DB21, ...
DBX10.0 - DBX11.1 Activate channelspecific protection zone 1 ( ...10)
Edge evaluation: No Signal(s) updated: Cyclically
Signal state 1 or
edge change
0 → 1
The preactivated, channelspecific protection zone 1 ( ...10) is activated by the PLC user program.
The protection zone is immediately activated.
Only protection zones that have been pre-activated in the part program can be activated.

Siemens SINUMERIK 828D Specifications

General

Control Type	CNC
Operating System	Windows Embedded
Processor	Intel Atom
Display	10.4" color TFT display
Interfaces	Ethernet, USB
Programming	ShopMill, ShopTurn
Operation Panel Size	10.4"
Protection Class	IP65
PLC Memory	2 MB
Spindle Capacity	4 spindles
Hard Drive	CompactFlash