Rockwell Automation 1760-xxxx Pico Controller User Manual - Manual (Page 195)

Publication 1760-UM001D-EN-P - September 2005
Specifications A-5
Inputs AC Models
Specification 1760-L12NWN
1760-L12NWN-ND 1760-L18NWN-EX
1760-L18NWN-EXND
Digital inputs 24V ac
Number 8 12
Status display LCD (if provided) LCD (if provided)
Electrical isolation
To power supply No No
Between Inputs No No
to the outputs Yes Yes
Rated voltage (sinusoidal)
off state 0 to 6V ac 0 to 6V ac
on state 14 to 26.4V ac 14 to 26.4V ac
Rated frequency 50/60 Hz 50/60 Hz
Input current
I1 to I6
(1760-L18NWN-xx also I9 to I10) 4 mA at 24V ac 50 Hz 4 mA at 24V ac 50 Hz
Input current
I7, I8
(1760-L18NWN-xx also I11 and
I12) 2 mA at 24V ac 50 Hz,
2 mA at 24V 2 mA at 24V ac 50 Hz,
2 mA at 24V
Delay time I1 to I8 and I9 to I12 (1760-L18-NWN-xx), From 0 to 1 and from 1 to 0
Debounce ON 80 ms (50 Hz), 66 .66 ms
(60 Hz)
80 ms (50 Hz), 66 .66 ms
(60 Hz)
Debounce OFF 20 ms (50 Hz), 16 .66 ms
(60 Hz)
20 ms (50 Hz), 16 .66 ms
(60 Hz)
Max. permissible cable length (per input)
I1 to I8 and
1760-L18NWN-xx I9 to I10 40m (131 ft)