Chapter 2    Specifications 
2 – 22 
(5) EH-XAH16 
 
Specification 
EH-XAH16 
Input type 
AC input 
Number of inputs 
16 
Input voltage 
200 to 240V AC (170 to 264V AC) 
Input current 
4.3 to 8.0mA (200V AC / 50Hz) 
Input impedance 
Approx. 32kΩ (50Hz) / Approx. 27kΩ (60Hz) 
Operating  ON voltage  164V AC minimum 
voltage  OFF voltage  40V AC maximum 
Input response  OFFÎON 15ms maximum 
time ON ÎOFF 25ms maximum 
Insulation system 
Photo-coupler insulation 
Input display 
Green LED 
External connection 
Removable type screw terminal block (M3) 
Number of inputs / common 
16 (1 common, 2 terminals) 
Internal current consumption 
50 mA maximum 
 
 
Terminal configuration  No.  Signal 
name 
Diagram of Internal circuit 
[1] 0 
[2] 1 
[3] 2 
[4] 3 
[5] 4 
[6] 5 
[7] 6 
[8] 7 
[9] C 
[10] 8 
[11] 9 
[12] 10 
[13] 11 
[14] 12 
[15] 13 
[16] 14 
[17] 15 
[1] 
[2] 
[3] 
[4] 
[5] 
[6] 
[7] 
[8] 
[9] 
[10] 
[11] 
[12] 
[13] 
[14] 
[15] 
[16] 
[17] 
[18] 
Screw for 
fixing 
 
 
[18] C 
 
0
C
15
LED 
Internal circuit