Chapter 2     Specifications 
2 – 21 
(4) EH-XA16 
 
Specification 
EH-XA16 
Input type 
AC input 
Number of inputs 
16 
Input voltage 
100 to 120V AC (85 to 132V AC) 
Input current 
4.8 to 7.6mA (100V AC / 50Hz) 
Input impedance 
Approx. 16kΩ (50Hz) / Approx. 13kΩ (60Hz) 
Operating  ON voltage  79V AC minimum 
voltage  OFF voltage  20V 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 fo
fixing 
 
 
[18]  C 
 
0
C
15
LED 
Internal circuit