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2. installation
2.3 Connecting the signal leads
2.4 Electrical design
2.5 General
2.3 Connecting the signal leads
Each I10 module has
a
48-way plug connector for the signal leads.
The associated front connector comprises the shell with cable
strain relief clamp and one of the following:
- 48-way socket connector with solder posts
- 48-way socket connector with 1 mm
X
1 mm pins
-Insulator for 48 crimped connections
Reliable attachment of the front connector is assured by means of
an extra locking bar or1 the connector body. Further details will be
found in the section on "Spare parts".
For front connector pin assignments see page 21.
2.4 Electrical design
The power supply rriust be equipped with smoothing capacitors
(approx. 200 y F per Amp load current).
The M-potential bus for the 24 V supply must be as close as
possible to the S5-010. All M-potential leads which run to the S5-
010 via connectors must have a conductor cross-section of at least
1 mm2. The connecting lead between the M-potential bus and the
protective earth conductor (PE) must have a conductor cross-
section of at least 70 mmz.
-Printed circuits and components must not be touched with
bare hands; handle modules by means of the edge connector
only.
-Persons intending to handle the modules must discharge them-
selves to frame potential before touching the modules.
The housing of the S5-010 is attached to the mounting plate by
%
means of serrated washers which eliminate the need for a ground
wire connection.
Fig 17
Inserting a front connectof
24 V and 220 V leads should be run separarely if possible or be
bundled separately.
If contactors are housed in the same cabinet as the S5-010, or in
the immediate vicinity of the cabinet, it is advisable to fit an RC
circuit t o the contactor coils (R
=
220f1, C
=
0.25 yF).
The following measures are recommended if there is a high noise
level:
Fit a capacitor of 0.68 PF between the
O
V terminal of the CPU and
the earthing terminal of the subhousing frame.
Connect the connector shell of the cable between the proyram-
ming unit and its interface module to the M-potential bus of the 24 V
supply (on-line operation).
2.5 General
The modules of the S5-010 programmable controller must not be
plugged in or unplugged with the system live. The modules employ
CMOS technology.
Notes on components and modules sensitive to electrical charge:
Before unplugging the EPROM submodule the mode selector
switch must be set to the "STOP" position.
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