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Mounting- and Operating Instruction Eaton LoadStar-S JSB
40071860396 March 2021 www.ceag.de
34 3-PM-IO-INV Module
Bus connection 3-PM-IO and 3-PM-IO-INV
An RS485 bus is wired for data communication with exter-
nal bus modules.
The wires of the RS 485 bus line must be connected to the
ACU terminal strip at the terminal points RS485 A, RS485
B, +24V OUT and -24V OUT.
NOTE!
A parallel connection of data lines is not permitted and
does not extend the permissible line length.
Wires within a shield can be connected in parallel to supply
voltage to the modules.
The two lower DIL switches on the ACU module for the RS
485 bus must be set to „ON“ at the beginning of the bus
line to activate the 120 Ohm termination resistor.
ATTENTION!
Bus topology: linear, double terminated (no stub lines per-
mitted). Cable type (minimum requirement): IY(ST)Y 4 x 2
x 0.8 mm (twisted pair, shielded) - the cable shield must be
connected to the SE terminals of each module and must
only be earthed in the LoadStar-S control cabinet. The cable
cross-section required for the 24 V bus voltage depends on
the cable length and the number of bus modules (Umin =
19 V DC). Only one pair of wires may be used as data cable
within the shield - it is not permitted to bundle several data
cables within one shielded cable! The 120 Ohm terminating
resistor is integrated in the modules and can be activated
by a bridge at terminals B1/B2.
L1
N1
L2
N2
L3
N3
L4
N4
N6
L7
N7
+24V
-1
+24V
-2
+24V
-3
-24V
-1
-24V
-2
-24V
-3
SE-IN
A-IN
B-IN
SE-
O
ut
A-
O
ut
B-
O
ut
B2
B1
L5
N5
L6
L8
N8
PE1
PE2
Adresse
3-PM-IO
H L Sh1 +24.1 -24.1 A B
Sh2 +24.2 -24.2 IN1.1 IN1.2 IN2.1 IN2.2 IN3.1 IN3.2 IN4.1 IN4.2 IN5.1 IN5.2 IN6.1 IN6.2 K1.COM K1.NO K1.NC
K2.COM K2.NO K2.NC K3.COM K3.NO K3.NC K4.COM
K4.NO K4.NC
HMI ETN +24.3 -24.3 IN7.1 IN7.2 IN8.1 IN8.2 K5.COM K5.NO K6.COM K6.NO
ACU
H L A B
L3
L2
N
PE
L1
9
© 2017 Eaton. All Rights Reserved.
.
I/O Module
Vertraulich. Nur zum internen Gebrauch.