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Operating instructions
RSD-TI-Ex8, RSD-TI2-Ex8
Power supply
The modules are powered via the terminal base (terminals 34+, 35-); via the
terminals 50+ and 51- it is possible to daisy chain to the next module (see
figure 4). The maximum intrinsically safe values must not be exceeded.
CJC1 thermal *)
CJC2 thermal *)
+
+
+
H
L
H
L
H
L
ch0
ch1
ch2
+
+
+
H
L
H
L
H
L
nc
ch4
ch5
ch6
V+ V–
nc
nc nc nc nc nc nc
CJC1
electrical
Figure 4
Installation
This module must not be exposed directly to the environment. Provide a separate
enclosure with a protection factor of at least IP54; the IS-RPI modules themselves
have a protection factor of IP20. Do not remove the cover plug on the open side
of the backplane bus connection.
Safe area mounting
The module must not be used in an intrinsically safe environment after it has been
exposed to non-intrinsically safe signals.
Repair
This module is not field-repairable. Any attempt to open this module will void the
warranty and IS certification. If repair is necessary, return this module to the
factory.
ESD
Protect the IS-RPI modules against electrostatic charge. Post a sign near this
module: Attention! Avoid electrostatic charge.
Subject to reasonable modifications due to technical advances
3
Pepperl+Fuchs Group·Tel.: Germany (6 21) 776-11 11·USA (3 30) 4 25 35 55·Singapore 7 79 90 91·Internet http://www.pepperl-fuchs.com
+
H
L
ch3
Ro w 1
Ro w 2
Ro w 3
+
H
L
nc
ch7
V+ V–
nc
CJC2
* included in scope of delivery
electrical
Copyright Pepperl+Fuchs, Printed in Germany
Inputs
Each input can be operated from a RTD, a resostor in the range of 0 Ω ... 500 Ω
or ith thermocouples. Do not apply any non-intrinsically safe signals to this
module.
The channels in this module are electrically connected to each other and have a
common plus-line.
Important: When interconnecting several lines, you must consider the total
accumulated power and check for intrinsic safety.
Electromagnetic compatibility
To achieve the EMC protection class it is necessary to use shielded multicore
cable and to have a shield for each channel. The isolation of each wire has to be
higher than 500 V.
Ambient temperature
The Ambient Temperature of the module (-20 °C ... +70 °C) has to be considered,
especially when the modules are mounted in a cabinet where the internal
temperature is increased by the power dissipation of the modules itself.
If the intrinsically safe electrical circuits are led into areas with inflammable dust
the following requirements have to be fulfilled.
Zone 20
The intrinsically safe electrical circuits (Ch 0 to Ch 7) may be led into areas with
inflammable dust (Zone 20). It has to be guaranteed, however, that the devices,
to which these intrinsically safe electrical circuits are connected, fulfil the
requirements for category 1D and are marked accordingly.
All other intrinsically safe electrical circuits may not be led into Zone 20.
Zone 21
All other intrinsically safe electrical circuits may also be led into areas with
inflammable dust (Zone 21). It has to be guaranteed, however, that the devices,
to which these intrinsically safe electrical circuits are connected, fulfil the
requirements for category 2D and are marked accordingly. Of course, the
intrinsically safe electrical circuits (Ch 0 to Ch 7) may under the same conditions
also be led into Zone 21.
Zone 22
When the module is installed in Zone 22 the following cabinets have to be used:
IVK-ISRPI-V16LC
IVK-ISRPI-V8HYW
IVK-ISRPI-V8LC
Subject to reasonable modifications due to technical advances
Pepperl+Fuchs Group·Tel.: Germany (6 21) 776-11 11·USA (3 30) 4 25 35 55·Singapore 7 79 90 91·Internet http://www.pepperl-fuchs.com
Operating instructions
RSD-TI-Ex8, RSD-TI2-Ex8
Copyright Pepperl+Fuchs, Printed in Germany
4
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