10-1
Chapter 10
Maintenance
10.1 Contents in this chapter
This chapter describes the items related to maintenance.
10.2 Planning of maintenance
All maintenance on a safety system are safety critical.
You must plan and perform maintenance accordingly.
The P1-FS requires conducting the functional test at least
once in a year. When planning maintenance of the system,
this functional test must be considered.
10.3 Daily and periodical inspection
The P1-FS requires daily and periodical inspection in
addition to the functional test of Safety function. Please
perform inspections as instructed in the User’s Guide of SJ-
P1.
10.4 Periodical functional test
A periodical Safety functional test must be performed at
least once in a year in order to maintain the intended safety
performance level of Safety function.
This periodical Safety function test is one of the conditions
for Safety function of P1-FS to meet PLe of EN ISO13849-1
and SIL 3 of IEC61800-5-2.
In the Safety function test, confirm that the set Safety
function operates normally as described in this guide
against input.
Functional test procedure:
(1) Power up SJ-P1 installed with P1-FS and confirm that
no error occurs in the initial test.
(2) Set all inputs to the driving permitted state (both
contacts ON (short circuit)) and start driving.
(3) Redundant contacts OFF (open: safety state) assigned
Safety function to redundant input terminals, confirm that
the Safety function operates and the corresponding
output signal operates.
(4) Release the Safety function, when the other functions
are assigned, perform the same confirmation to other
terminals.
· In case that an error occurs,
there may be a fault in the
safety path of the P1-FS. In that case, stop using the
inverter immediately and contact Hitachi inverter
distributor.
10
Chapter 10 Maintenance
Summary of Contents for P1
Page 2: ...The picture is an example of installing P1 FS to SJ P1 ...
Page 8: ...C 3 Index Memo ...
Page 10: ...1 2 Chapter 1 Safety Precaution Risk Memo ...
Page 12: ...2 2 Chapter 2 Introduction to the Safety Function Guide Memo ...
Page 62: ...7 2 Chapter 7 Commissioning Memo ...
Page 64: ...8 2 Chapter 8 Verification and Validation Memo ...
Page 68: ...10 2 Chapter 10 Maintenance Memo ...
Page 72: ...11 4 Chapter 11 Specification and Technical data Memo ...