Download 56 Transformer Isolated Amplifier EG2

Transformer Isolated Amplifier EG2-T
Output: Transistor
- Control circuit EEx ia IIC
Sensor
mech. contact
with LB
- DC 24 V supply voltage
mech. contact
without LB
- Reversible operating mode
- Lead breakage monitoring (LB) can
be disabled
Chan. 1
Chan. 2
d2+
z2+
d4z4-
10 kΩ
d2+
z2+
d4z4-
d2+
z2+
d4z4-
Hazardous Area
Input Ι / Input II
EEx ia IIC
- 2-Channel
- Override input for each of the two
transistor outputs per channel
* LB
Chan. 1
Chan. 2
d2+
z2+
d4z4-
The transformer isolated amplifier transmits digital signals from the hazardous area.
Sensors per DIN 19234 (NAMUR) or mechanical contacts can serve as inputs. The
control circuit can be monitored by lead
breakage monitoring.
d8
z8
2 Channel
LB
Notes on connection assignment
Inputs d30; z30 (LL+)
These inputs are internally connected.
Supply for transistor outputs d32, z32.
&
&
≥1
yellow
Lead breakage monitoring (LB)
d6, d8; z6, z8
Lead breakage monitoring can be disabled
by bridging the above connections. If necessary, the unit can be supplied with the
lead breakage monitoring feature disabled
with a factory installed jumper on the card.
Mode of operation d16; z16
Logic-1: no reversal of operating mode
from input to output
Logic-0: reversal of operating mode from
input to output
(see table of oparating modes on page 25)
If necessary, the operating mode can also
be selected with a factory installed jumper
on the card.
d6
z6
Safe Area
- 3 active transistor outputs per channel
≥1
+
≥1
-
U
U
(-)
Chan. 1
Chan. 2
d16
z16
d20
z20
d26
z26
LL+
d32
z32
d30
z30
d18
z18
d14
(L+)
z14
(L-)
Operating
Mode
Output Output
Output
Supply
Relay Power Supply
I / IV
II / V
III / VI
Override
10 mA
10 mA
200 mA
Input
* Bridge for disabling lead breakage monitoring
Front View
Type A
(dimensions see page 16)
LED yellow:
Transistor Output Chan. 1
Issue Date 20.02.02
LED yellow:
Transistor Output Chan. 2
Subject to reasonable modifications due to technical advances.
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Copyright Pepperl+Fuchs, Printed in Germany
Pepperl+Fuchs Group · Tel.: Germany (6 21) 7 76-22 22 · USA (3 30) 4 25 35 55 · Singapore 7 79 90 91 · Internet http://www.pepperl-fuchs.com
Transformer Isolated Amplifier EG2-T
Output: Transistor
Technical data
Power supply
Nominal voltage
Ripple
Nominal current
DC 20.4 V ... 27.6 V
≤ 10 %
about 50 mA
Power supply
Nominal voltage
Ripple
Nominal current
DC 20.4 V ... 27.6 V
≤ 10 %
≤ 8 mA without output load
Inputs (intrinsically safe)
Input I:
Input II:
Nominal values
Open circuit voltage / short circuit current
Switch point / switch hysteresis
Input pulse length / pulse interval
Lead monitoring
Connections d2+, d4Connections z2+, z4per DIN 19 234 with respect to NAMUR
about DC 8 V / about 8 mA
1.2 mA ... 2.1 mA / about 0.2 mA
≥ 0.5 ms / ≥ 0.5 ms
Breakage J ≤ 0.1 mA
Connections d14 (L+), z14 (L-)
Connections d30, z30 (LL+)
Certificate of Conformity Peak Values
Max. voltage U0
Max. current I0
Max. power P0
Allowable circuit values
Ignition protective class, category
Explosion group
Max. external capacitance
Max. external inductance
PTB Nr. Ex-81/2065X other certifications see www.pepperl-fuchs.com
12.7 V
21 mA
66 mW
[EEx ia]
IIB
1.1 µF
5 mH
Inputs (not intrinsically safe)
Signal level Logic-1
Signal level Logic-0
Input current
Input delay
DC 15 V ... 30 V
DC 0 V ... 5 V or B-contact input
1 mA
5 ms ... 20 ms (typically 10 ms)
Outputs (not intrinsically safe)
Output I, II, IV, V :
Nominal current
Signal level Logic-1 / Logic-0
Output III, VI:
Nominal current
Signal level Logic-1 / Logic-0
Transistor output, active
Connections d20; d26; z20; z26
10 mA, short circuit protected
(L+) -5 V / 0.9 V or cut off output (leakage currentJ ≤ 10 µA)
Transistor output, active
Connections d32; z32
200 mA, short circuit protected
(L+) -5 V / cut off output (leakage current J ≤ 10 µA)
Transfer characteristics
Switch frequency
≤ 1 kHz
Galvanic isolation
Input I ... II / from output I ... VI
Input I ... II / from power supply
Output / power supply
Safe galvanic isolation per EN 50 020, voltage peak value 375 V
Safe galvanic isolation per EN 50 020, voltage peak value 375 V
available
Conformity to standards
Input
Climatic conditions
per DIN 19234 (NAMUR)
per DIN IEC 721
Ambient temperature
Connection method
Coding
Weight
-25 °C ... +70 °C (248 K ... 343 K)
48-pin plug connector per DIN 41 612, Series 2, Type F; z, b and d provided
a3 / c3
about 160 g
/ IIC
/ 0.37 µF
/ 2 mH
[EEx ib]
IIB
3.9 µF
260 mH
/ IIC
/ 0.8 µF
/ 70 mH
Issue Date 20.02.02
Connections d16, z16
Subject to reasonable modifications due to technical advances.
Copyright Pepperl+Fuchs, Printed in Germany
Pepperl+Fuchs Group · Tel.: Germany (6 21) 7 76-22 22 · USA (3 30) 4 25 35 55 · Singapore 7 79 90 91 · Internet http://www.pepperl-fuchs.com
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