Siemens SINUMERIK 840D Description Of Functions page 236

4 Data Descriptions
4.1 Machine data
36986 $MA_SAFE_PULSE_ENABLE_OUTPUT
MD number Output assignment, enable pulses
Default: 0
Change becomes effective after POWER ON:
Data type: DWORD
Meaning The output assignment for the pulses is enabled using this data.
Structure: Refer to coding of output assignment
Signal
= 0
= 1
•
Special cases, errors
•
•
36987 $MA_SAFE_REFP_STATUS_OUTPUT
MD number Output assignment "axis safely referenced"
Default: 0
Change becomes effective after POWER ON:
Data type: DWORD
Meaning This data specifies the output for the "axis safely referenced" signal.
Structure: Refer to coding of output assignment
Signal
= 0
= 1
•
Special cases, errors
•
Further references MD 36980: $MA_SAFE_SVSS_STATUS_OUTPUT
4-236
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
Min. input value: 0
Protection level (R/W) 7/2
Applies from SW 3.4
means
Request for pulse cancellation
Request for pulse enable
If a single output signal is connected to a terminal, the following applies:
If MD bit 31 is set, then the signal is processed inverted (ss = 81)
If several output signals are connected to the same terminal, the following applies:
If MD bit 31 is set (ss = 81), the relevant signal is initially inverted.
The (in some cases inverted) output signals are then ANDed and the result output at
the terminal.
Bit 30 has the following special meaning
If bit 30 is set to 1, the internal pulse cancellation via the drive bus is used (only
permissible for 611 digital Performance 2 modules). In this case, the MDs for
external pulse enabling must also be parameterized as an additional safety measure
in the event that the internal pulse cancellation fails
($MA_SAFE_EXT_PULSE_ENABLE_OUTPUT and
$MA_SAFE_STOP_REQUEST_EXT_INPUT)
Possible values of i:
Value Meaning
0 The SGA "enable pulses" is output at the parameterized interface
(SPL or periphery).
4 The pulses are internally cancelled via the drive bus.
The SGA "enable pulses" contains the same information and is
output
at the parameterized interface (SPL or periphery). This SGA is not
transferred if mm, xx and nn=0.
8 The SGA "enable pulses" is output inverted at the parameterized
interface.
12 (=0CH) The pulses are cancelled internally via the drive bus. The SGA
"enable pulses" contains the same information
and is output inverted at the parameterized interface
(SPL or periphery).
Min. input value: 0
Protection level (R/W) 7/2
Applies from SW 3.4
means
Axis is not safely referenced
(i.e. the SE is de-activated)
Axis is safely referenced
If a single output signal is connected to a terminal, the following applies:
If MD bit 31 is set, then the signal is processed inverted (ss = 81)
If several output signals are connected to the same terminal, the following applies:
If MD bit 31 is set (ss = 81), the relevant signal is initially inverted.
The (in some cases inverted) output signals are then ANDed and the result output at
the terminal.
Max. input value: -
Unit: -
Max. input value: -
Unit: -
© Siemens AG 2003 All Rights Reserved
11.03
840D
840D