Omron E5AN - Page 78

42
Wiring Terminals Section 2-2
CT Inputs • When the HB alarm, HS alarm, or heater overcurrent alarm is to be used
with the E5CN-@M@-500 with an E53-CN@H/HH@N2 Option Unit, con-
nect a current transformer (CT) across terminals 14 and 15 or terminals
13 and 15 (no polarity).
• When the HB alarm, HS alarm, or heater overcurrent alarm is to be used
with the E5AN/EN-@@H@-500-N or E5AN/EN-@@HH@-500-N, connect a
current transformer (CT) across terminals 14 and 15 or terminals 15 and
16 (no polarity).
• When using the HB alarm, HS alarm, or heater overcurrent alarm with the
E5GN-@@H@, connect the current transformer (CT) across terminals 7
and 8. (no polarity)
Communications RS-485
• When communications are to be used with the E5@N-@@@03, connect
communications cable across terminals 11 and 12, terminals 21 and 22,
or terminals 7 and 8.
Specify both ends of the transmission path including the host computer as
end nodes (that is, connect terminators to both ends).
The minimum terminal resistance is 54 Ω.
E53-CN@@H@N2
(for E5CN)
15
14
CT
E5GN-@@H@
8
7
CT
E53-CN@HH@N2
15
14
13
CT1
CT2
CT
E5AN/EN-@@H@-500-N E5AN/EN-@@HH@-500-N
CT2
CT1
14
15
14
15
16
E5CN-@@@03
11
12
RS-485
A(−)
B(+)
E5GN-@@@03
7
8
RS-485
A(−)
B(+)
E5AN/EN-@@@03
RS-485
Do not use.
13
A(−)
12
B(+)
11