Transformer Isolated Amplifier EG2-RLK
Output: Relays and Transistors
- Control circuit EEx ia IIC
Sensor
mech. Contact
with LB / SC
- DC 24 V supply voltage
- Monitoring output for lead breakage
and short circuits.
- Reversible operating mode
Hazardous Area
Input I / Input II
EEx ia IIC
- 2-Channel
1 kΩ
Chan. 1
Chan. 2
d2+
z2+
d4z4-
d2+
z2+
10 kΩ
d4z4-
- Lead breakage (LB) and short circuit
(SC) monitoring may be disabled
- 1 Signal output with 2 changeover contacts per channel
* LB
Chan. 1
Chan. 2
- 1 Active transistor output per channel
d2+
z2+
Fault signal outputs b16; b18
For short circuit or lead breakage (Indicator:
LED red). The fault signal outputs are combined by a circuit lead, so that only one
connection is required for the fault evaluation of all channels on the card. If the evaluation of each individual channel is necessary, then the circuit lead must be breached
at position 6 as shown (See side view of
card).
d8
z8
2.1, 2.2
+
2 Channel
3.1
1.1, 1.2
SC
&
=1
Notes on connection assignment
Lead breakage monitoring d6, d8; z6, z8
Lead breakage monitoring can be disabled
by bridging the above connections. If necessary, the unit can also be supplied with a
factory installed plug-in jumper for the lead
breakage monitoring setting.
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 operating modes on page 25)
If necessary, the operating mode can also
be selected by a factory installed plug-in
jumper on the card.
d6
z6
LB
SC
+
The transformer isolated amplifier transmits digital signals from the hazardous area.
Sensors per DIN 19234 (NAMUR) or mechanical cotacts can serve as alarms. The
control circuit can be monitored through
lead breakage and short circuit monitoring.
d4z4-
Safe Area
- 1 Relay override input per channel
&
+
-
red
≥1
U
yellow
U
6
Chan. 1 d16
Chan. 2 z16
d20
z20
Operating
Mode
Output
I / IV
d24 d22 d26 d30 d28 d32
z24 z22 z26 z30 z28 z32
Output
II / V
b16 d14
b18 (L+)
z14
(L-)
Output Power supply
III / VI
Fault Signal
* Bridge for disabling lead breakage monitoring
Front View
Type A
(dimensions see page 16)
LED yellow:
Output Channel 2
LED yellow:
Output Channel 1
LED red:
Fault Signal Channel 1
Issue Date 20.02.02
LED red:
Fault Signal Channel 2
Subject to reasonable modifications due to technical advances.
38
Copyright Pepperl+Fuchs, Printed in Germany
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Transformer Isolated Amplifier EG2-RLK
Output: Relays and Transistors
Technical data
Power supply
Nominal voltage
Ripple
Nominal current
DC 20.4 V ... 27.6 V
≤ 10 %
about 70 mA
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
Short circuit J ≥ 6 mA
Connections d14 (L+), z14 (L-)
Certificate of Conformity Peak Values
Max. voltage U 0
Max. current I0
Max. power P 0
Allowable circuit values
Ignition protection method, 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
Input (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 (typically10 ms)
Outputs (not intrinsically safe)
Output II, I :
Output IV, V :
Contact load
Mechanical life
Energized- / De-energized delay
Outpu III, VI:
Nominal current
Signal level Logic-1 / Logic-0
Connections d24, d22, d26; d30, d28, d32
Connections z24, z22, z26; z30, z28, z32
AC: 50 V / 2 A / cos ϕ = 1 / 1 A / cos ϕ = 0,3; DC: 40 V / 100 W Ohm load
2 x 10 5 switchings
about 12 ms / about 10 ms
Transistor output, active
Connections d20, z20
10 mA, short circuit protected
(L+) -3 V / 0.9 V or cut off output (leakage current J ≤10 µA)
Transfer characteristics
Output I, II, IV, V: switch frequency
≤ 25 Hz (use at high frequencies EG2-TLK)
Galvanic isolation
Output I ... VI from each other
Output I ... VI from power supply
Output I ... VI and power supply from input
Safe isolation per DIN VDE 0106, design isolation voltage 50 V eff
Safe isolation per DIN VDE 0106, design isolation voltage 50 V eff
Safe galvanic isolation per EN 50 020, voltage peak value 375 V
Conformity to standards
Input
Climatic conditions
per DIN 19234 (NAMUR)
per DIN IEC 721
Ambient temperature
Connection possibilities
Coding
Weight
-25 °C ... +70 °C (248 K ... 343 K)
32-pin plug connector per DIN 41 612, Series 2, Type F; z and d provided
a3 / c3
about 200 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
39
Transformer Isolated Amplifier EG2-RLK
Output: Relays and Transistors
1.1
1.2
D1.1
EExInput
module
V1.1
Plug Connector per DIN 41 612
3.1
EExInput
module
V1.2
2.1
2.2
Side View
Output Relays
6
D1.2
Programming facilities on the card
Jumpers
Plug in design optional
1.1 (open)
Reverse operating mode of channel 1
1.2 (open)
Reverse operating mode of channel 2
2.1 (open)
Lead breakage monitoring channel 1: active
2.2 (open)
Lead breakage monitoring channel 2: active
If link 3.1 is closed, short circuit and lead breakage monitoring for all channels are cut off.
Delivery status
Jumpers 1.1 to 3.1
Issue Date 01.08.96
open
Subject to reasonable modifications due to technical advances.
40
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