Safety Function Settings; Sto Function By Safety Input Signal - Omron M1 Series User Manual

8 Other Functions
Parameter
SIL
HFT
SFF
STO Function by
Safe Input Signal
STO Function via
EtherCAT Com-
munications
8-6-2

Safety Function Settings

Turn OFF the safety function selector switch SW9 when the inverter power supply is turned OFF.
Set SW9 to enabled (OFF) or disabled (ON) so that both sides are at the same position at all times.
Turn both OFF to use the safety function.
Turn both ON to not use the safety function.
When only one is ON, the logic of the SF1 and SF2 signals no longer matches and this causes an EN
circuit failure (alarm code: 39).
8-6-3

STO Function by Safety Input Signal

The safety input function allows the inverter output when current flows in both the terminals [SF1] and
[SF2]. When the safety input function is activated, in compliance with the safety standards described
in 8-6-1 Overview of Safety Function on page 8-61, the output transistor operation of the inverter is
stopped safely (by shutting off its output). As a result, the motor stops with free run.
• It takes 50 ms or shorter from when the safety input is input till when the inverter shuts off the out-
put.
• St is displayed on the data display.
8-62
3
1
>90%
PFH
3.00 × 10
PFD
4.00 × 10
Mission time 20 years
PFH
1.10 × 10
PFD
1.10 × 10
Mission time 10 years
Safety function selector switch
ON
(Safety function
disabled)
Value
-9
EN/IEC 61508-1 to -7
-5
EN/IEC 61800-5-2
EN/IEC 62061
-8
-4
OFF
M1 Series EtherCAT Type User's Manual (I670)
Standard