Hitachi SJ Series - Functional Description

4-15
Chapter 4
Safety Function
4.5 Functional description
4.5.1 STO function
■How STO function works
The STO function can stop the output to the motor safely
by keeping the STO state until the motor coasts to stop.
The STO function can be used by inputting STO-A or STO-B
function individually.
When STO-A and STO-B are activated at the same time,
STO-A is higher priority function.
■Related parameters
No.
Name
Related data
0-11
Safety Function
Select Input 1
01:STO-A / 11:STO-B
0-12
Safety Function
Select Input 2
0-13
Safety Function
Select Input 3
0-21
Safety Function
Select Output 1
01:STO-A monitoring /
02:STO-A completed /
11:STO-B monitoring /
12:STO-B completed
0-22
Safety Function
Select Output 2
0-23
Safety Function
Select Output 3
1-11
Keep Time after STO-
A
0.00 to 3600.00s
1-12
STO-A release mode
00:without release /
01:with safety signal /
02:with release signal
2-11
Keep Time after STO-
B
0.00 to 3600.00s
2-12
STO-B release mode
00:without release /
01:with safety signal /
02:with release signal