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New relay extension module safety controller
The new Leuze MSI-EM-4RO relay extension module for the MSI 200 safety controller,
available from
Countapulse Controls
, can control multiple devices via potential-free
output contacts, Gerry Bryant, managing director, says.
Most modern safety sensors andActive Opto-electronic Protective Devices (AOPDs) are
equipped with semiconductor outputs today.With such electronic safety-related switch-
ing outputs (OSSDs), high voltages in excess of 24 V cannot be connected, however,
and they are not suitable for controlling devices with high power consumption, such as
contactors, locking devices, pumps and motors.
In such instances, the new MSI-EM-4RO extension module with its four, one-channel
or two, two-channel relay outputs helps out. At a maximum switching voltage of 250Vac/
dc, it delivers high switching power in a rugged and compact design with housing width
of 22 mm. Four freely configurable message outputs indicate operating states of the
total system.
The extension modules are simply connected to the base module (the MSI 200 safety
controller) on the DIN rail by means of mounting rail connectors. The system satisfies
the requirements for Performance Level PL e in accordance with EN ISO 13849-1 and
SILCL 3 in accordance with EN IEC 62061.
Enquiries: Gerry Bryant.Tel. 011 615 7556 or email
bryant@countapulse.co.zaNew I/O modules for extreme conditions
The Axioline F I/O system from
Phoenix Contact
for signal acquisi-
tion in the control cabinet now includes versions with an extended
temperature range of -40 °C to 70° C.
The robust modules with the XC (extreme conditions) extension are
based on standard versions. In addition to bus couplers, they also
include digital and analogue input and output modules as well as a
range of function modules.
The PCBs used are coated with a special paint which
improves their resistance to moisture and corrosive gases.
This means that the new XC versions are ideal for use
in applications with harsh ambient conditions, such as
wind power plants or solar parks in regions with extreme
climates.
The new XC versions follow in the footsteps of the
complete Axioline F I/O system with particularly high im-
munity to interference up to 8 kV, rapid signal acquisition,
and a highly robust design, which means they can handle
mechanical loads such as shocks up to 30 g.
Enquiries: Patrick Rowland.
HAZARDOUS AREAS + SAFETY
15
March ‘15
Electricity+Control