Hitachi SJ P1 Series, Руководство по функциям безопасности

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4-1
Chapter 4 Safety function
4.1 Contents in this chapter
This chapter describes the information about the safety
function of the SJ-P1.
4.2 Safety function (STO)
The STO function of the SJ-P1 is a function equivalent to
STO (Safe Torque Off) defined in IEC61800-5-2 as well as
Category 0 Stop in EN60204-1.
4.3 Applicable standard
The applicable standards are listed in the table below.
■
Applicable standard
Standard Remark
EN 13849-1:2015 CAT.4 PL e
IEC 61800-5-2:2016 STO, SIL 3
EN62061:2005/AMD2:2015 SILCL 3 Capability
EN60204-1 Stop category 0
UL1998 Diagnostic software
class 1
NFPA79
4.4 How STO function works
4.4.1
STO input terminal
Signal inputs for the STO function are redundant inputs of
ST1 and ST2
When voltage is applied to each input, currents flow on
each safety path enabling the motor operation of the
inverter (output to the motor is permitted). The product is
delivered with the STO function being disabled with a
jumper-wire (See the figure below) so to allow initial
commissioning of the inverter without configuring the STO
function. Please remove the jumper-wire and perform
wiring appropriately to use the STO function.
When voltage is removed from at least one of the STO
inputs, the output of the inverter is disabled (shut off) by
the corresponding shut-off path (safety path).
Wiring on STO input terminal
In the factory default setting, STO
input terminal is wired to disable the
STO function as shown in the figure.
I/O terminal
STO input terminal
P24S STC CMS
ST1 ST2 STC
The STO function must
always be operated using the
both of the STO inputs.
STO input terminal
P24S STC CMS
ST1 ST2 STC
Sink logic
Inverter type:
P1-*****-*FF
or
P1-*****-*FUF
Source logic
Inverter type:
P1-*****-*FEF
or
P1-*****-*FCF
*: Depending on the inverter type. Refer to the User’s Guide of the SJ-P1.
4
Chapter 4 Safety function