Rockwell Automation 21G PowerFlex 750-Series AC Drives Reference Manual - Manual (Page 84)

84 Rockwell Automation Publication 750-RM001F-EN-P - February 2012
Chapter 7 Safe Limited Speed (SLS) Modes
Safe Stop Reset (SS Reset) and Safe Limited Speed Reset (SLS Reset)
If an ESM Monitoring Fault occurs due to the ESM_In input turning OFF
(enabling switch is released), the safety option can be reset without cycling the
SS_In input. To perform an SLS Reset, first return the ESM_In input to ON
(grip the enabling switch in the middle position). Then, press and release the
reset button. This is the only case where the SS_In input does not need to be
cycled to reset the safety option following a fault.
While Safe Limited Speed is being monitored after the P53 [LimSpd Mon
Delay] times out, if the SLS_In input is ON and an SLS Reset occurs, the
ESM_In is not monitored.
If you attempt an SS Reset when the SLS_In input is OFF and the ESM_In input
is OFF, an ESM Monitoring fault occurs. An ESM Monitoring fault is a Stop
Category fault, which initiates the configured Safe Stop Type.
SLS with Enabling Switch
Monitoring Parameter List To configure the safety option for Safe Limited Speed with Enabling Switch
Monitoring, set the P54 [Enable SW Input] parameter in addition to the Safe
Stop parameters listed on
page 69 and the Safe Limited Speed parameters listed
on page 78 .
ATTENTION: Make sure that the SLS_In input cannot transition to ON while
someone is in the hazard area.
Use appropriate procedures when selecting safe limited speed to prevent other
users from changing the mode while personnel are in the machine area.
Fil
e
Gr
ou
p
No. Display Name
Full Name
Description Values
Re
ad
-Write
Da
ta
T
yp
e
HOST GROUPS
Gen
eral
21 Safety Mode
Safety Mode
Defines the primary operating mode of the speed monitoring safety functions. Setting: 5 = “Lim Speed ES” RW 8-bit
Integer
Limited
S
peed
54 Enable SW Input
Enable Switch Input
Configuration for the Enabling Switch input (ESM_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 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
(1) You must configure this parameter with a non-zero value in this mode.