Engineering; Length Of Signal Input Cables; Digital Inputs - Eaton easyE4 Manual

1.10 Engineering

1.10.1 Length of Signal input cables

1.10.1.1 Digital inputs

The easyE4 series makes it possible to combine multiple voltage variants. Each base
device can be wired with up to 11 EASY-E4-...-...E1(P) expansions with different
power supplies.
Severe interference can cause a signal 1 on the inputs without a proper signal being
applied.
Therefore, observe the following maximum cable lengths without additional circuitry:
Basic device Digital inputs
EASY-E4-UC-12... 24 V DC
EASY-E4-DC-12...
EASY-E4-UC-12... 12 V DC
EASY-E4-UC-12... 24 V AC
EASY-E4-AC-12... 115/230 V AC
I/O expansion
EASY-E4-DC-16TE1(P)
EASY-E4-UC-16RE1(P)
EASY-E4-DC-8TE1(P)
EASY-E4-UC-8RE1(P
EASY-E4-UC-16RE1(P)
EASY-E4-UC-8RE1(P)
EASY-E4-UC-16RE1(P)
EASY-E4-UC-8RE1(P)
EASY-E4-AC-16RE1(P)
EASY-E4-AC-8RE1(P)
easyE4 02/24 MN050009EN Eaton.com
1. Description of easyE4 control relay
Qty.
8 Of which can be used
4 (I5, I6, I7, I8)
as analog inputs
4 (I1, I2, I3, I4)
as frequency counter or rapid
counter inputs
2 (I1 + I2, I3 + I4)
as incremental counter
8
8
8 (I1 - I6)
(I7, I8)
Digital inputs Qty.
24 V DC 8
4
12 V DC 8
4
24 V AC 8
4
115/230 V AC 8
4
1.10 Engineering
Max. cable length in m
100 (unshielded)
30 screened
20 (screened)
20 (screened)
100 (unshielded)
40 (unshielded)
40 (unshielded)
100 (unshielded)
Cable length in m
100 (unshielded)
100 (unshielded)
100 (unshielded)
100 (unshielded)
40 (unshielded)
40 (unshielded)
40 (unshielded)
40 (unshielded)
45