IDEC FS1A Controller - Manual (Page 380)

LOGIC
5-332
Output function
Safety output without timer
This function is for controlling the safety output.
As shown in Fig. 5-32, this function is comprised of a hold input (O
n
), an EDM input (I
n
), and a
safety output (Y
n
). The function output of this external device monitoring input function is
connected to the EDM input (I
n
).
Fig. 5-32 Safety output function circuit
Connects to
Equipment with force guided mechanisms, such as, contactors, safety relays.
Input of safety PLC, or other safety controllers.
Description of operation
The operation timing is described in Fig. 5-33 and 5-34.
I When hold input is turned ON, the safety output is turned ON after confirmation that the EDM
input is ON.
II When hold input is turned OFF, the safety output is turned OFF.
III If the EDM input is not applied correctly (ON state of EDM input is not detected during EDM
monitoring time (1s) after hold input is turned ON, ON state of EDM input is not detected
during EDM monitoring time (1s) after safety output turns OFF, or ON state of EDM input is
not detected during EDM monitoring time (1s) after EDM input turns OFF due to the error
during safety output is OFF state), the SafetyOne changes to the Protection state, and
indicates “1” on the error LED without turning ON the safety output. (See Fig. 5-34.)
O
n
I
n
Y
ｎ
V-
Ex. Contactor, safety relay Hold
EDM
OSSD