Simex SGC-61 User manual

Assisting the automation
industry since 1986
User manual
GALVANIC SE ARATOR
SGS-61
•Input type: 4-20 mA
•Supply from current loop
Read the user's manual carefully before starting to use the unit or software.
Producer reserves the right to implement changes without prior notice.
2013.02.2 SGS-61_INSSXEN_v.1.04.000

User manual - GALVANIC SEPARATOR SGS-61
CONTENTS
1. BASIC REQUIREMENTS AND USER SAFETY.........................................................................................3
2. GENERAL CHARACTERISTICS................................................................................................................3
3. TECHNICAL DATA......................................................................................................................................4
4. DEVICE INSTALLATION............................................................................................................................5
4.1. UNPACKING.......................................................................................................................................5
4.2. ASSEMBLY.........................................................................................................................................6
4.3. CONNECTION METHOD...................................................................................................................7
4.3.1. 4.3.1 Calcula ion of max. permissible load resis ance..........................................................10
4.4. MAINTENANCE................................................................................................................................10
5. OUTPUT SIGNAL ADJUSTMENT............................................................................................................11
Exp anation of symbo s used in the manua :
- This symbol deno es especially impor an guidelines concerning he ins alla ion and
opera ion of he device. No complying wi h he guidelines deno ed by his symbol
may cause an acciden , damage or equipmen des ruc ion.
IF THE DEVICE IS NOT USED ACCORDING TO THE MANUAL THE USER IS
RESPONSIBLE FOR POSSIBLE DAMAGES.
- This symbol deno es especially impor an charac eris ics of he uni .
Read any informa ion regarding his symbol carefully
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User manual - GALVANIC SEPARATOR SGS-61
1. BASIC REQUIREMENTS AND USER SAFETY
- The manufacturer is not responsible for any damages caused by
inappropriate installation, not maintaining the proper environmental
conditions and using the unit contrary to its assignment.
- Installation should be conducted by qualified personnel . During installation all
available safety requirements should be considered. The fitter is responsible for
executing the installation according to this manual, local safety and EMC
regulations.
- The unit must be properly set-up, according to the application. Incorrect
configuration can cause defective operation, which can lead to unit damage or
an accident.
- If in the case of a unit malfunction there is a risk of a serious threat to the
safety of people or property additional, independent systems and
solutions to prevent such a threat must be used.
- Neighbouring and connected equipment must meet the appropriate standards
and regulations concerning safety and be equipped with adequate overvoltage
and interference filters.
- Do not attempt to disassemble, repair or modify the unit yourself. The unit
has no user serviceable parts. Defective units must be disconnected and
submitted for repairs at an authorized service centre.
- In order to minimize fire or electric shock hazard, the unit must be protected
against atmospheric precipitation and excessive humidity.
- Do not use the unit in areas where there is risk of explosions.
- Make sure that the ambient temperature (e.g. inside the control box) does not
exceed the recommended values. In such cases forced cooling of the unit must
be considered (e.g. by using a ventilator).
The unit is designed for operation in an industrial environment and must
not be used in a household environment or similar.
2. GENERAL CHARACTERISTICS
Separator is designed for galvanic isolation input current signal from output current
signal. Both (input and output) currents ranges are 4÷20mA. Input circuit is supplied from
current loop, but output current loop needs external supply 9 ÷30V DC. Two potentiometers
avaible after removing a small cap from the front of the device, allow to trim output current for
application demands. Narrow housing allows mounting the device on DIN 35mm rail.
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User manual - GALVANIC SEPARATOR SGS-61
3. TECHNICAL DATA
Input loop
Current 4 ÷ 20 mA; IIN MIN = 3,9 mA; IIN MAX = 24 mA
Voltage drop max. 5,5V
Supply type from current loop
Output loop
Current 4 ÷ 20 mA; IOUT MIN = 3,9 mA; IOUT MAX = 24 mA
Current loop supply 9 ÷ 30 V DC
(any polarisation on OUT1, OUT2)
Max load resistance max. 1kΩ (for supply: 30V / IOUT = 20 mA),
[RO. MAX = (Usupply – 9V) / IOUT]
Other
Transmittance factor KI = IOUT / IIN = 1
Separation galvanic separation between input and output loop
Insulation voltage 750V
Temperature stability 0,05 % / °C
Bandwith (3dB) 200 Hz
Protection level IP 20
Housing type
Housing dimensions
DIN rail mounted (35 mm rail)
0 x 6,1 x 93, mm
Weight 35 g
Operating temperature
(depending on version)
0°C to +50°C
or -20°C to +50°C
Storage temperature
(depending on version)
-10°C to +70°C
or -20°C to +70°C
Screws tightening max. torque 0,5 Nm
Max. connection leads diameter 2,0 mm2
EMC according to: PN-EN 61326-1
Isolation between primary and secondary circuit is only functional isolation and can't be
use as protection against electric shock.
This is a class A unit. In housing or a similar area it can cause radio
frequency interference. In such cases the user can be requested to use
appropriate preventive measures.
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User manual - GALVANIC SEPARATOR SGS-61
4. DEVICE INSTALLATION
The unit has been designed and manufactured in a way assuring a high level of user
safety and resistance to interference occurring in a typical industrial environment. In order to
take full advantage of these characteristics installation of the unit must be conducted correctly
and according to the local regulations.
- Installation should be conducted by qualified personnel .
- Read the basic safety requirements on page 3 prior to starting the installation.
- All installation works must be conducted with a disconnected power supply.
- Installation should be make in order to requirements in 4.3.
4.1. UNPACKING
After removing the unit from the protective packaging, check for transportation damage. Any
transportation damage must be immediately reported to the carrier. Also, write down the unit
serial number on the housing and report the damage to the manufacturer.
Attached with the unit please find:
- user’s manual,
- warranty,
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User manual - GALVANIC SEPARATOR SGS-61
4.2. ASSEMBLY
- Disconnect the power supply prior to starting assembly.
- Check the correctness of the performed connections prior to switching the unit on.
Figure 4.1. Housing dimensions
Figure 4.2. Me hod of moun ing / demoun ing on DIN rail.
6
93,mm
0mm
6,1mm

User manual - GALVANIC SEPARATOR SGS-61
Figure 4.3. Me hod of cable connec ing.
The device should not be used while strong vibrations occurs, and must not be
used for security systems.
4.3. CONNECTION METHOD
Caution
- Installation should be conducted by qualified personnel . During installation all
available safety requirements should be considered. The fitter is responsible for
executing the installation according to this manual, local safety and EMC
regulations.
- Wiring must meet appropriate standards and local regulations and laws.
- Tighten the clamping screws. The recommended tightening torque is 0.5 Nm.
Loose screws can cause fire or defective operation. Over tightening can lead to
damaging the connections inside the units and breaking the thread.
Due to possible significant interference in industrial installations appropriate measures
assuring correct operation of the unit must be applied. To avoid the unit of improper
indications keep recommendations listed belo .
7
max. ø2mm

User manual - GALVANIC SEPARATOR SGS-61
–Avoid common (parallel) leading of signal cables and transmission cables together with
power supply cables and cables controlling induction loads (e.g. contactors). Such cables
should cross at a right angle.
–Contactor coils and induction loads should be equipped with anti-interference protection
systems, e.g. RC-type.
–In the case of magnetically induced interference the use of twisted couples of signal
cables (so-called “spirals”) is recommended. The spiral (best if shielded) must be used
with RS-4 5 serial transmission connections.
Figure 4.4. Terminals descrip ion.
Input current loop signal (range 4÷20mA) should be connected to connectors IN+, IN-. Proper
polarization of signal is essential. Output - passive current loop should be powered by nominal
voltage (any polarization) and connected to the output load (Figure 4.4.).
passive ouput current loop
(any polarization)
4
5
3
2
1
input current loop
IN+
IN-
OUT 1
OUT 2

User manual - GALVANIC SEPARATOR SGS-61
Figure 4.5. Example of device connection.
Signal polarization on input connectors IN+, IN- is fixed.
Signal polarization on output connectors OUT1, OUT2 is free.
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4
5
1
power supply
24V
+ -
two-wire transducer
R0
power supply
load
(measurement)
resistance
+
24V
-
IN+
IN-
OUT 1
OUT 2
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User manual - GALVANIC SEPARATOR SGS-61
4.3.1. 4.3.1 Ca cu ation of max. permissib e oad resistance
Calculation of load resistance R0 has been made using circuit from Figure 4.5., following
signatures has been assumed:
Ui- minimal current output supply voltage assuring its proper operation,
Imax. - maximal current measured in current loop (20 mA),
Us - external power supply voltage (24V).
R0max.=Us−Ui
Imax.
Values Ui = 9V, Imax. = 20 mA and Uz = 24V gives:
R0max.=24−9
0,02 =750 
4.4. MAINTENANCE
The unit does not have any internal replaceable components available to the user. Pay
attention to the ambient temperature in the room where the unit is operating. Excessively high
temperatures cause faster ageing of the internal components and shorten the fault-free time of
unit operation.
In cases where the unit gets dirty do not clean with solvents. For cleaning use warm water with
small amount of detergent or in the case of more significant contamination ethyl or isopropyl
alcohol.
Using any other agents can cause permanent damage to the housing.
Product marked with this symbol should not be placed in municipal waste. Please
check local regulations for disposal and electronic products.
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User manual - GALVANIC SEPARATOR SGS-61
5. OUTPUT SI GNAL ADJUSTMENT
After removing a small cap from the front of the device two potentiometers for adjustment
output current are available.
Figure 5.1. Po en iome ers loca ion.
Potentiometers description :
P1 - output current adjustment at IIN = 4,00 mA
P2 - output current adjustment at IIN = 20,00 mA
After regulation it is recommended to check again indications for 4 and 20 mA.
It is necessary to keep order during regulation: first potentiometer P1, next P2.
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P1 P2

SIMEX Sp. z o.o.
ul. Wielopole 7
80-556 Gdańsk
Poland
tel.: [phone]
fax: [phone]
http:// .simex.pl
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