IDEC FS1A Controller - Manual (Page 53)

LOGIC
5-5
Chapter 5
• Wiring example of a SafetyOne and a SafetyOne
Y0 X0
X1
T0
T1
Y1
Control category 4
MTTF
ｄ
100 years
DC high
PL e
SafetyOne
1
SafetyOne
2
Dual Channel Safety
Y0 X0
X1
T0
T1
note：
Stopping the whole system by the safety output of
SafetyOne 1 is recommended.
(In case of a short circuit between Y0 and external
conductors, only SafetyOne 1 detects the error.)
Y1
Control category 3
MTTF
ｄ
100 years
DC Ｍｅｄｉｕｍ
PL d
SafetyOne
1
SafetyOne
2
Dual Channel Safety
Note：
To avoid short circuit between each cable,
-Fix the cables permanently and protect against external
damage, e.g. by cable ducting, conduit.....
or
-Use individually shielded cables with earth connection.
Warning
Applicable safety performance depends on the whole system configuration.