Siemens SINUMERIK 840C Installation Instructions Manual page 290

01.99
NC MD 7
Delay of the
NC ready
Consider
signal by
software
1 IPO cycle
limit switch
in case of
5022
emergency
PLC failure
or 5 V retraction
under-
(as from
voltage
SW 6)
(as from
SW 6.3)
Control bits to define stopping procedure.
Bit 7 Bit 7=1 Delay of NC ready signal by 1 IPO cycle in case of PLC failure or 5 V under-
voltage.
Bit 6 Bit 6=1 The function "Consider software limit switch with controlled emergency
retraction" is activated.
Bit 5 Bit 5=1 Enables release of the configured independent emergency retraction at 5 V
undervoltage.
Bit 4 Bit 4=1 Enables release of the configured independent emergency retraction in case of
PLC failure.
Bit 1 Bit 1=1 Stopping is extended by the phase T1 and T2, i.e. interpolator-controlled
continuation and deceleration.
Bit 1=0 When stopping signal is recognized deceleration starts immediately with speed
setpoint 0. The following axes go into controlled follow-up.
Bit 0 Bit 0=1 Stopping is also performed with Emergency stop. The following axes
subsequently go into controlled follow-up.
Bit 0=0 On Emergency stop deceleration with speed setpoint 0 is performed
immediately. Following axes go into controlled follow-up.
NC MD 7
5024
Default value: 0000 0110
Bit 1 Bit 1=1 In the case of G[..]105 and G[..]119, a G200 is generated by the NC for
this axis. The same restrictions apply here as for programmng of a G200
axis.
Bit 1=0 Automatic synchronization of end-of-block value with G[..]105 and
G[..]119. In the case of G[..]105 and G[..]119, no G200 is generated by
the NC for this axis.
Bit 0 Bit 0 = 1 If a contour violation occurs when tool radius compensation is active,
alarm 2021 "Contour violation with TRC" is signalled. Processing of the
part program is interrupted, the alarm can be acknowledged with the reset
key.
Bit 0 = 0 If a contour violation occurs when tool radius compensation is active,
alarm 3021 "Contour violation with TRC" is signalled. Processing of the
part program is not interrupted, the alarm is deleted with the acknowledge
key.
_______
1) As from SW 4
©
Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
6 NC Machine Data (NC MD), NC Setting Data (NC SD)
Bit No.
6 5 4
Retraction
5 V under-
in case of
voltage
PLC failure
(as from
(as from
SW 6.3)
SW 6.3)
Bit No.
6 5 4
6FC5197- AA50
6.6.1 General MD bits (general bits)
3 2 1
Extended
1)
stopping
3 2 1
Automat.
block end
value synchr.
G105/G119 1)
0
Stopping
also on
Emergency
OFF 1)
0
Abort on
contour
violation
TRC
6–105