Hitachi P1, Safety Function Manual

Page: 54 / 74

4-40
Chapter 4 Safety Function
4.7.2
Release of SBC control signal
Time chart of release of SBC state is shown as below.
■
Timing chart
e.g. Case: SBC-A after STO-A,
[1-31]SBC-A Time linkage=00(SBC after STO),
[1-12]STO-A Release Mode =01(With safety signal) and
[1-36]SBC-A release level =0.00%:
e.g. Case: SBC-A after STO-A,
[1-31]SBC-A Time linkage=00(SBC after STO),
[1-12]STO-A Release Mode =01(With safety signal) and
[1-36]SBC-A release level=20.00%:
*) Setting of [1-31]SBC-A Time linkage, [1-12]STO-A
Release Mode and [1-36]SBC-A release level are
available to release the signal of ‘-A’. Setting of [2-
31]SBC-B Time linkage, [2-12]STO-B Release Mode and
[2-36]SBC-B release level are available to release the
signal of ‘-B’.
SBC-A
Input
Output
STO-A monitoring
Motor speed
SBC-A control
Open
Short
Output current
Active
Inactive
Active
Inactive
Release
[1-11]STO-A Keep time
[1-32]Wait time for SBC-A after STO-A
[1-35]SBC-A STO-A Release wait time
SBC-A
Input
Output
STO-A monitoring
Motor speed
SBC-A control
Open
Short
Output current
Active
Inactive
Active
Inactive
Release
[1-11]STO-A Keep time
[1-32]Wait time for SBC-A after STO-A
[1-35]SBC-A STO-A Release wait time
[1-36]SBC-A release level