Siemens SINAMICS G110D Operating Instructions Manual page 133

Parameter Description
r0885 Quick Stop status
P0886 Quick Stop input type
When the Quick Stop function is activated, an OFF1 command is initiated. The motor will be
slowed and brought to a standstill using the ramp-down times set in parameter P1121. The
default setting for P1121 is 10 seconds and this value may need adjusted to ensure that the
load on the conveyor section is brought to a halt at the correct position on the conveyor
section
Setting the ramp-down time too short can cause the Inverter to trip with either and
overcurrent or overvoltage fault.
The controlling system, for example, the AS-i controller detects that the Quick Stop function
has been activated and can, by use of the appropriate ON command or the 'Quick Stop
override" signal restart the motor as required.
Using parameter P0886, it is possible to set the type of reaction required to stop the
conveyor section. There are basically two trigger methods, edge triggered signals or level
triggered signals. Each type of triggering method produces a different reaction to the OFF1
command and the restarting of the motor. These reactions are shown in the figures below:
Figure 6-19 Positive edge triggered signals reactions
Figure 6-20 High level triggered signals reactions
The 'Quick Stop override' command is normally sent by the controlling system, but the local
keypad can also be used to initiate the 'Quick Stop override'. The keypad is switched into
SINAMICS G110D
Operating Instructions, 2009-05-15, A5E02385577A AB
Remarks
Bit field describing status of quick stop
Bit /description 1 0
00: Quick Stop is active
01: Quick Stop selected
02: Override selected
03: Keypad control active
04: Quick Stop Enabled
Control Word for selecting the Quick Stop input type.
0: Quick Stop not selected
1: Quick Stop input active high
2: Quick Stop input active low
3: Quick Stop input positive edge triggered
4: Quick Stop input negative edge triggered
Functions
6.10 Quick Stop function
Yes No
Yes No
Yes No
Yes No
Yes No
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