Hitachi SJ Series - Contents in this Chapter; Safety Function; Applicable Standard; How Safety Function Works

4-1
Chapter 4
Safety Function
4.1 Contents in this chapter
This chapter describes the information about the Safety
function of the P1-FS with SJ-P1.
4.2 Safety function
The Safety functions of the P1-FS with SJ-P1 are functions
equivalent to below functions defined in EN/IEC 61800-5-2.
Safety function
Description
STO
(Safe torque off)
It is equivalent to stop
category 0 defined in
EN/IEC60204-1.
SS1
(Safe stop 1)
It is equivalent to stop
category 1 defined in
EN/IEC60204-1.
SBC
(Safe brake control)
It is output signal to
control an external
brake unit.
SLS
(Safely-limited speed)
It prevents the motor from
exceeding the specified
speed limit.
SDI
(Safe direction)
It prevents the motor shaft
from moving in the
unintended direction.
SSM
(Safe speed monitor)
It provides an output signal
to indicate whether the
motor speed is below a
specified limit
4.3 Applicable standard
The applicable standards are listed in the table below.
■ Applicable standard
Standard
Remark
EN ISO/ISO 13849-1
CAT.4, PL e
IEC 61508, EN/IEC 61800-5-2,
EN/IEC 62061
SIL 3, STO
EN/IEC 60204-1
Stop category 0, 1
4.4 How Safety function works
4.4.1 Installation of P1-FS and
each part name of the product
■ Installation and wiring route
The P1-FS can only be installed on the far right slot of SJ-P1
whose version is 2.01 or later. Please check the version of
SJ-P1 in advance. The version is written on upper right of
the name plate of SJ-P1.
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Chapter 4 Safety Function