Twido Programmable controller

Recommendations for
setup
Twido programmable controller
Analog I/O extension modules
Electromagnetic compatibility
1
2
2
4
1
3
Connections for ensuring conformity to EMC standards
Principle
In order to protect against external interference, cables and cordsets carrying the
signals below must be shielded:
b Extension modules:
v Sensors and actuators connected to TM2 AMI/ARI and TM2 ApO/ApM analog I/O
v CANopen bus
b Twido controller base:
v Sensors connected to inputs with low fi ltering
v Serial links.
3
4
The use of shielded cables requires compliance with the following wiring rules:
b Shielding earthed at both ends of the cables. Metal conduit or ducting can be used
for part of the shielding length, provided there is no break in the continuity of the
ground connections.
b Wherever possible, keep cables carrying signals of different categories separate..
Installation diagram for Twido controller
1 Metal plate connected to the device's protective earth (PE)
2 Twido programmable controller
3 Analogue I/O extension module
4 Shielded cables for connecting the fast inputs 4
8 Shielded cable for connecting the sensors/actuators on analogue extension
modules
9 Earth connection plate TM2 XMTGB for attaching and earthing the shielding of
the cables numbered 8 in the diagram (see detail A)
Connecting the shielding of cables 4
5
6
7
7
15
9
8
A 13
Shielding of cables 4 (connection of sensors/actuators to the base) via shielding
connection clamp 15 (1):
v Attach and ground the shielding of the cables 4 as close as possible to the
controller base.
v Strip the shielding (at the clamp 15).
v Attach the cable to the metal support 1 by tightening the clamp onto the stripped
part of the shielding.
The shielding must be clamped tightly enough to the metal support to ensure good
contact.
Connecting the shielding of cables 8
The shielding for cables 8 (connection of the extension modules' sensors/actuators)
must be attached to the ground connection plate TM2 XMTGB (see detail A
opposite)
Connecting the functional ground terminals
The functional ground terminals (FG) of the:
v 24 V c power supply of the Twido base
v Analogue I/O extension modules, see detail A.
8
9
Detail A: Ground connection plate TM2 XMTGB
13
14
10
11
12
Installing the ground connection plate TM2 XMTGB
v 8, 9, 10, 11 and 12: The shielding on cable 8 is stripped at the male Faston
connector 10 for a length of 15 mm 11, then tightly clamped on it using the Rilsan
clamp 12 (width 2.5…3 mm).
v 13 and 14: Functional ground terminal (FG). Each earth terminal on the extension
modules (analog and counter) must be connected to the TM2 XMTGB plate 9 via an
earth braid 13 (2) (width W 2…5 mm, thickness W/5) and using a 6.35 mm Faston
connector 14 .
___________________________________________________________________________
(1) The shielding of cables 4 can be attached to plate TM2 XMTGB, in the same way as cable 8.
(2) Earth braid supplied with TM2 ARI 8LT/LRJ analog modules.
10
9 8
Note: These shielding connections do not remove the need to
connect the PE protective conductors (green-yellow) to the
appropriate terminals on each unit or product.
Presentation:
page 50
Description:
page 50
Characteristics:
pages 51 …
References:
page 54
Dimensions:
page 55
56