Rockwell Automation 21G PowerFlex 750-Series AC Drives Reference Manual - Manual (Page 104)

104 Rockwell Automation Publication 750-RM001F-EN-P - February 2012
Chapter 8 Slave Modes for Multi-axis Cascaded Systems
Slave, Safe Limited Speed
Mode When properly configured for Slave, Safe Limited Speed mode, the safety option
performs the same functions as Safe Limited Speed mode as described on
page 75 .
However, the safety option regards the Door Monitor input as a Door Control
output from an upstream axis, and performs a logical AND with its internal
Door Control signal to form the cascaded Door Control output. Door
Monitoring, Enabling Switch Monitoring, and Lock Monitoring functions are
not allowed in this mode.
For the door to unlock, all axes must be below safe limited speed.
Slave, Safe Limited Speed
Parameters To configure the safety option for Slave, Safe Limited Speed monitoring, set
these parameters in addition to the Slave, Safe Stop parameters listed on
page 99 .
See Multi-axis Connections on page 110 for details on configuring slave safety
options.
TIP Only the middle and last safety option in a multi-axis system can be configured
for slave modes.
Fi
le
Grou
p
No. Display Name
Full Name
Description Values
Rea
d-W
ri
te
Da
ta T
ype
HOST GROUPS
Ge
n
era
l
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.
“Slv Lim Spd” (9) - Slave, Safe Limited Speed Option: 9 = “Slv Lim Spd” RW 8-bit
Integer
Limited S
pee
d
52 Lim Speed Input
Limited Speed Input
Configuration for Safe Limited Speed input (SLS_In).
“2 OSSD 3s” (5) – Dual-channel SS equivalent 3 s Option: 5 = “2 OSSD 3s” RW 8-bit
Integer
53 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. Units:
Default:
Min/Max: Secs
0
0 / 6553.5 RW 8-bit
Integer
55 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]. Units:
Default:
Min/Max:
RPM
mm/s
0
0 / 6553.5 RPM
0 / 6553.5 mm/s RW 16-bit
Integer