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PDF MTL7742 Data sheet ( Hoja de datos )
| Número de pieza | MTL7742 | |
| Descripción | BARRIER | |
| Fabricantes | MTL | |
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MTL7700 SERIES
DIN rail mounting
safety barriers
www.DataSheet4U.net
◆◆ Removable terminals
◆◆ Bussed power feed to other
modules
◆◆ Relay and solid state
switch modules
◆◆ Dual channel variants —
6.3mm per channel
◆◆ Proximity detector inputs
◆◆ Electronic fusing
◆◆ Direct replacement for
MTL700 Series barriers
◆◆ Compatible terminal numbering
and safety descriptions
Since its introduction in 1984 the MTL700
Series barrier has established itself as the worldwide
standard for safety barriers. Known for its quality
and reliability, the MTL700 Series is widely used in
applications all over the world.
The MTL7700 Series follows closely in the
footsteps of the MTL700, but as a DIN rail mounting
barrier, providing quick and easy installation without
the need for special hardware.
Removable terminals are used for ease of
installation, maintenance and for providing a loop
disconnect by simply unplugging the terminals from
the side of the module. Wire entry is also angled to
assist wiring within limited space enclosures.
MTL7700 barriers clamp simply and securely
onto standard T-section DIN rail, simultaneously
making a reliable IS earth connection.
For applications where field power is required
for switch inputs or 2-wire transmitters, the MTL7700
Series provides a bussed power feed facility. When
used in conjunction with the MTL7798 power feed
module the user has a fully protected, electronically
fused supply to many barriers with no additional
wiring required.
MTL7700 active modules are protected with
an electronic fuse for the majority of applications.
The MTL7798 active fused, power feed module can
protect up to 40 other modules using the bussed
power facility and provides a clear indication of a
trip condition via a red LED.
The MTL774X range of barriers offer a NAMUR
compatible input and a choice of relay or solid
state output. The solid state outputs are floating so
switching to ground or from a power rail into an
input is also possible. The solid state interface also
provides a high frequency transfer for use in flow or
rotation applications.
Dual channel relay or solid state modules
offer the highest packing density with only 6.3mm
per channel and when used in conjunction with the
power bus, offer users the minimum of wiring with
the maximum packing density and the lowest cost
per channel.
EUROPE (EMEA)
Tel: +44 (0)1582 723633
Fax: +44 (0)1582 422283
AMERICAS
Tel: +1 281 571 8065
Fax: +1 281 571 8069
ASIA PACIFIC
Tel: +65 6 487 7887
Fax: +65 6 487 7997
E-mail: [email protected] Web site: www.mtl-inst.com
Aug 2009
1 page  
MTL7707+
basic circuit
Hazardous
Area
LED,
alarm
solenoid
etc.
Safe
Area
+3
4
Bussed power
Current
limit
1.6mA
50mA
1
50mA
2
ADDITIONAL SPECIFICATION
Safety description
28V 164Ω 171mA, terminals 1 to 3
28V Diode, terminals 4 to 2
Supply voltage
10 to 35V dc with respect to earth
Output current
Up to 35mA available
Maximum voltage drop
(at 20ºC, current not limited)
Iout x 218Ω + 0.3V, terminals 1 to 3
Iout x 20.1Ω + 0.9V, terminals 4 to 2
Supply current
Iout + 1.6mA, supply <26V
Limited to 50mA, supply >28V or low load resistance
MTL7741 proximity sensor or switch input
and relay output
The MTL7741 is a single channel switch/prox input barrier with
changeover relay contacts acting as the safe area interface. Relay
contacts provide a universal interface capable of switching a wide
range of signals including ac, low level and high level voltages.
Phase reversal is achieved by connecting the normally open or
normally closed contacts as required. The power bus terminal may
be used to connect the module to a power source.
basic circuit
Hazardous
Area
Safe
Area
Bussed power
1
3 NC 2
NO 6
4
COM
5
ADDITIONAL SPECIFICATION
www.DataSheet4U.net
Safety description
10V 19mA
Supply voltage
22.9 to 30V dc with respect to earth
Input characteristics
Relay energised if input >2.1mA(<2kΩ)
Relay de-energised if input <1.2mA(>10kΩ)
Relay Contacts
50V ac 0.5A. Resistive
30V dc, 1A. Resistive
Supply current
26mA maximum @ 24V
Response time
<10ms
MTL7742 proximity sensor or switch input
with solid state output
The MTL7742 is a single channel switch/prox input barrier with an
open collector solid state interface to the safe area equipment. The
solid state switch is especially useful for high frequency switching
apparatus including pulse and rotational sensors. The power bus
terminal can be used to connect power to the module and the
input power supply range makes the module suitable for use with
unregulated supplies.
basic circuit
Hazardous
Area
Safe
Area
Bussed power
1
+3 5
CH1
4 6
2
ADDITIONAL SPECIFICATION
Safety description
10V 19mA
Supply voltage
20 to 35V dc with respect to earth
Input characteristics
Output energised if input >2.1mA(<2kΩ)
Output de-energised if input <1.2mA(>10kΩ)
Output characteristics
Operating frequency dc to 2.5kHz
Max off-state voltage 35V
Max off-state leakage 10µA
Max on-state voltage drop <1.41V @ 50mA
<1.22V @ 2mA
typically <1V
Max on-state current
50mA
Supply current
20mA maximum @ 24V
MTL7743 2 channel proximity sensor or
switch input and relay outputs
The MTL7743 is a dual channel switch/prox sensor input barrier with
a relay interface. This module is ideal for applications where high
channel packing densities are required for digital inputs. Power is
connected using the power bus terminal.
basic circuit
Hazardous
Area
Safe
Area
+3
4
+7
8
Bussed power
CH2
1
2
CH1
5
6
ADDITIONAL SPECIFICATION
Safety description
10V 19mA
Supply voltage
22.9 to 30V dc with respect to earth
Input characteristics
Relay energised if input >2.1mA(<2kΩ)
Relay de-energised if input <1.2mA(>10kΩ)
Relay Contacts
50V ac 0.5A. Resistive
30V dc, 1A. Resistive
Supply current
45mA maximum @ 24V
Response time
<10ms
EUROPE (EMEA)
Tel: +44 (0)1582 723633
Fax: +44 (0)1582 422283
AMERICAS
Tel: +1 281 571 8065
Fax: +1 281 571 8069
ASIA PACIFIC
Tel: +65 6 487 7887
Fax: +65 6 487 7997
E-mail: [email protected] Web site: www.mtl-inst.com
Aug 2009
5 Page 
POSITIVE DC SYSTEMS
Low-level to 12V dc systems
The two channels of the MTL7764+ and MTL7767+ can be combined
safely in IIC.
The MTL7764+ can be used for low-level logic return signals whilst
the MTL7767+ is used for 6V dc and 12V dc systems.
Hazardous
Area
dc
systems
Safe
Area
31
4 MTL7764+ 2
MTL7767+
18V dc systems
The single-channel MTL7722+ is recommended for 18V dc systems.
dc
systems
31
4 MTL7722+ 2
+10V/+12V
+10V/+12V
0V
+19.6V
0V
AC AND DC SYSTEMS
High-level ac and dc systems
The versatile star-connected MTL7765ac and MTL7778ac allow
Vwkg to be developed from each channel to ground but only
allow Vwkg to be developed between channels. This provides
some common-mode voltage capability and can allow higher cable
parameters to be used.
dc and ac
systems
31
4
MTL7765ac
MTL7778ac
2
~ 12V/24V
0V
NEGATIVE AND FLOATING POWER SUPPLIES
Digital (on/off) outputs
The MTL7728– is used with a negative power supply and positive
earth. Typically used for digital inputs or outputs, as shown.
The MTL7728-- can also be used with floating power supplies, for
transmitters.
LED,
alarm
31
4 MTL7728— 2
+-
+26V
Spare cable cores and screens
www.DataSheet4U.net
The MTL7799 dummy barrier is used primarily for securing and
earthing unused cables and screen connections. Hazardous area
terminals 3 and 4 are internally connected to the DIN-rail mounting/
earth connection. It also provides a power bus connection for direct
connection of power for modules such as the MTL7743 and MTL7744
where no power supply screw terminal is provided.
Unused
cable
cores
and
screens
Power Bus
31
4
MTL7799
EUROPE (EMEA)
Tel: +44 (0)1582 723633
Fax: +44 (0)1582 422283
AMERICAS
Tel: +1 281 571 8065
Fax: +1 281 571 8069
ASIA PACIFIC
Tel: +65 6 487 7887
Fax: +65 6 487 7997
E-mail: [email protected] Web site: www.mtl-inst.com
Aug 2009
11 Page | ||
| Páginas | Total 17 Páginas | |
| PDF Descargar | [ Datasheet MTL7742.PDF ] | |
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