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Safe Limited Speed (SLS) Modes
Display Name
Full Name
Description
Values
21
Safety Mode
Safety Mode
Defines the primary operating mode of the speed monitoring safety functions.
Lim Speed Input
Limited Speed Input
Configuration for Safe Limited Speed input (SLS_In).
“2NC” (1) – Dual-channel equivalent
“2NC 3s” (2) – Dual-channel equivalent 3 s
“1NC+1NO” (3) – Dual-channel complementary
“1NC+1NO 3s” (4) – Dual-channel complementary 3 s
“2 OSSD 3s” (5) – Dual-channel SS equivalent 3 s
“1NC” (6) – Single channel equivalent
LimSpd Mon Delay
Limited Speed Monitoring Delay
Defines the Safe Limited Speed Monitoring Delay between the SLS_In ON to OFF
transition and the initiation of the Safe Limited Speed (SLS) or Safe Maximum Speed
(SMS) monitoring.
Safe Speed Limit
Safe Speed Limit
Defines the speed limit that will be monitored in Safe Limited Speed (SLS) mode.
Units are based on rotary or linear configuration defined by P29 [Fbk 1 Units].
Setting:
7 = “Lim Spd Stat”
RW 8-bit
Integer
Default:
Options:
0 = “Not used” (1)
0 = “Not used”
1 = “2NC”
2 = “2NC 3s”
3 = “1NC+1NO”
4 = “1NC+1NO 3s”
5 = “2 OSSD 3s”
6 = “1NC”
RW 8-bit
Integer
Units:
Default:
Min/Max:
Secs
0
0 / 6553.5
RW 16-bit
Integer
Units:
RPM
mm/s
0
0 / 6553.5 RPM
0 / 6553.5 mm/s
%
0
0 / 100
RW 16-bit
Integer
Limited Speed
53
55
56
Speed Hysteresis
Speed Hysteresis
Provides hysteresis for SLS_Out output when Safe Limited Speed monitoring is active.
0% when P21 [Safety Mode] = 1, 2, 3, 4, 5, 6, 8, or 9
10…100% when P21 [Safety Mode] = 7 or 10
Default:
Min/Max:
Units:
Default:
Min/Max:
Data Type
No.
52
HOST GROUPS
To configure the safety option for Safe Limited Speed Status Only monitoring,
set these parameters in addition to the Safe Stop parameters listed on page 69.
Read-Write
General Group
File
SLS Status Only Parameter
List
Chapter 7
RW 8-bit
Integer
(1) You must configure this parameter with a non-zero value in this mode.
Rockwell Automation Publication 750-RM001F-EN-P - February 2012
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