8.4
Detailed explanation of interfaces
The details of I/O signal interfaces stated in the following section (refer to the I/O signal interface type in the table) are as
follows. Refer to the section and connect them with external devices.
Page 450 Functional safety I/O signal connector (CN8) and pin assignments
Sink I/O interface
Digital input interface DI-1
This is an input circuit in which the photocoupler cathode side is the input terminal. Transmit signals from a sink (open-
collector) type transistor output, relay switch, etc.
For transistor
Approx. 5 mA
Switch
TR
V
≤ 1.0 V
CES
I
≤ 100 μA
CEO
8 USING STO FUNCTION
458
8.4 Detailed explanation of interfaces
Servo amplifier
STO1
STO2
Approx. 3.0 kΩ
STOCOM
24 V DC ± 10 %
300 mA