Slave, safe stop parameter list – Rockwell Automation 21G PowerFlex 750-Series AC Drives Reference Manual User Manual
Page 99
Rockwell Automation Publication 750-RM001F-EN-P - February 2012
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Slave Modes for Multi-axis Cascaded Systems
Chapter 8
Slave, Safe Stop Parameter
List
To configure the safety option for a Slave, Safe Stop mode, set these parameters.
See
for details on configuring slave safety
options.
Fi
le
Grou
p
No.
Display Name
Full Name
Description
Values
Re
ad
-W
ri
te
Da
ta
T
ype
HOST GROUPS
Gen
eral
20
Cascaded Config
Cascaded Configuration
Defines whether the speed monitoring safety option is a single unit or if it occupies a
first, middle, or last position in a multi-axis cascaded system.
Options:
2 = “Multi Mid”
3 = “Multi Last”
RW 8-bit
Integer
21
Safety Mode
Safety Mode
Defines the primary operating mode of the speed monitoring safety functions.
Option:
8 = “Slv Safe Stp”
RW 8-bit
Integer
Stop
44
Safe Stop Input
Safe Stop Input
Configuration for Safe Stop input (SS_In).
“2 OSSD 3s” (5) – Dual-channel SS equivalent 3 s
Options
5 = “2 OSSD 3s”
RW 8-bit
Integer
45
Safe Stop Type
Safe Stop Type
Safe operating stop type selection. This defines the type of Safe Stop that is performed if
the Safe Stop function is initiated by a stop type condition.
Default:
Options:
0 = “Torque Off”
0 = “Torque Off”
1 = “Safe Stop 1”
2 = “Safe Stop 2”
3 = “Torque Off NoCk”
RW 8-bit
Integer
46
Stop Mon Delay
Stop Monitoring Delay
Defines the monitoring delay between the request and the Max Stop Time when the
request for a Safe Stop 1 or a Safe Stop 2 is initiated by an SS_In input ON to OFF
transition.
If the Safe Stop Type is Safe Torque Off With or Without Standstill Speed Checking, the
Stop Monitor Delay must be 0 or a Invalid Configuration Fault occurs.
Units:
Default:
Min/Max:
Secs
0
0 / 6553.5
RW 16-bit
Integer
47
Max Stop Time
Maximum Stop Time
Defines the maximum stop delay time that is used when the Safe Stop function is
initiated by a stop type condition.
Units:
Default:
Min/Max:
Secs
0
0 / 6553.5
RW 16-bit
Integer
48
Standstill Speed
Standstill Speed
Defines the speed limit that is used to declare motion as stopped.
Units are based on rotary or linear configuration defined by P29 [Fbk 1 Units].
Not valid for Safe Torque Off without Standstill Checking.
Units:
Default:
Min/Max:
RPM
mm/s
0.001
0.001/ 65.535 RPM
000/ 65.535 mm/s
RW 16-bit
Integer
49
Standstill Pos
Standstill Position
Defines the position limit window in encoder 1 degrees or mm that will be tolerated
after a safe stop condition has been detected.
Degrees (360° = 1 revolution) or mm based on rotary or linear configuration defined by
P29 [Fbk 1 Units].
Not valid for Safe Torque Off without Standstill Checking.
Units:
Default:
Min/Max:
Deg
mm
10
0 / 65,535 deg
0 / 65.535 mm
RW 16-bit
Integer
50
Decel Ref Speed
Deceleration Reference Speed
Determines deceleration rate to monitor for Safe Stop 1 or Safe Stop 2.
Units are based on rotary or linear configuration defined by encoder 1 feedback
configuration, P29 [Fbk 1 Units].
Units:
Default:
Min/Max:
RPM
mm/s
0
0 / 65,535 RPM
0 / 65,535 mm/s
RW 16-bit
Integer
51
Stop Decel Tol
Stop Deceleration Tolerance
This is the acceptable tolerance above the deceleration rate set by the Decel Ref Speed
parameter.
Units:
Default:
Min/Max:
%
0
0 / 100
RW 8-bit
Integer