IAI America XSEL-KET - Manual (Page 39)

20
Part 1 Installation
INTELLIGENT ACTUATOR
2. External I/O Specifications
2-1. NPN
Specification
(1) Input part
External Input Specifications (NPN Specification)
Item Specification
Input voltage 24 VDC 10%
Input current 7 mA per circuit
ON/OFF voltage
ON voltage --- 16.0 VDC min.
OFF voltage --- 5.0 VDC max.
Insulation method Photocoupler insulation
External devices
(1) No-voltage contact (minimum load of approx. 5 VDC/1 mA)
(2) Photoelectric/proximity sensor (NPN type)
(3) Sequencer transistor output (open-collector type)
(4) Sequencer contact output (minimum load of approx. 5 VDC/1 mA)
[Input circuit]
* P24: I/O24V power connector, 24V IN
Caution
If a non-contact circuit is connected externally, malfunction may result from leakage
current. Use a circuit in which leakage current in a switch-off state does not exceed 1
mA.

X-SEL controller’s input signal
At the default settings, the system recognizes the ON/OFF durations of input signals if they
are approx. 4 msec or longer. The ON/OFF duration settings can also be changed using I/O
parameter No. 20 (input filtering frequency).
Internal circuit
Input terminal
External power
supply 24 VDC
10%
ON duration OFF duration
P24*
+
-
560 
3.3 K 