Mayser SG-RSV 239 User Manual

Polymer Electric

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Control Unit SG-RSV 239 Operating Instructions

Control Unit

according to EN 50155 and
EN 50121‑3‑2
classes TX, S2 in accordance with
EN 50155

for sensors with

1.2 kΩ monitoring resistor

These operating instructions apply to the
following control units:

SG-RSV 239/24 24 V=
SG-RSV 239 50-150 V=

Control

The Control Unit has two monitoring cir­cuits, which operate the output relays.
The electronics monitor the electrical
resistance of the connected sensors
which have a dened zero signal
current.
When the sensors are not activated
(normal operating conditions), the out­put relays are energised. If the line is
disconnected between the sensor and
the control unit, the relay “fault” is
de-energised.

Sensor 1

Sensor 2

Enclosure

W × H × D (mm) 45 × 75 × 108
Protection class IP20
2 plug-in connectors each 8-channel
Cable clamps max. 2.5 mm
Weight approx 175 g

Parts supplied

‑ Control Unit

Enclosure with electronics module
and plug connections with lift-up lock
release.

‑ Operating Instructions

Mayser Polymer Electric Postfach 30 48 89020 Ulm Germany Tel. [phone] Fax [phone]

130707 v1.2

2

Mayser Polymer Electric Postfach 30 48 89020 Ulm Germany Tel. [phone] Fax [phone]

130707 v1.2

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Control Unit SG-RSV 239

IMPORTANT NOTES! Please read!

To ensure correct and safe operation
of the unit, it must be properly trans­ported and stored, properly installed
and commissioned, and operated in
accordance with its intended use.
Only persons familiar with the instal­lation, commissioning and operation,
and with the corresponding qualica­tions to prove their skills, may work on
the units.
They must observe the contents of
these instructions, the information
given on the type plate of the unit and

the relevant safety regulations for the
installation and operation of electrical
systems.
This unit is designed in accordance with
EN 50155 and EN 50121-3-2 and left
the factory in a perfectly safe condition.
To maintain this condition, you must
observe the safety regulations marked
WARNING! in these operating instruc­tions. Failure to observe the safety
regulations can lead to death, injury to
personnel, or damage to the unit and
other systems and equipment.

Technical Data

Connecting Voltage US

SG-RSV 239/24 DC 24 V (S2)
Voltage tolerance -30% to +30%
SG-RSV 239 DC 50 to 150 V (S2)
Nominal frequency ­Frequency tolerance ­Power consumption < 2 W

Sensor Voltage

max. 12 V DC

Should the information given in these
operating instructions be inadequate
in any way, please contact your local
technical centre, subsidiary or rep­resentative. When using the device
outside the European Union, you must
observe the relevant regulations valid
for the country of use.

Important notes:

‑ Supply voltage

must be in accordance with the con­necting voltage Us indicated on the
type plate.

‑ Permissible temperature range

maintain sufcient distance from heat
sources if installing in switch cabinet
(min. 2 cm).

‑ Fusing of the relay contacts

due to risk of welding, externally with

1.0 A inert.

Signal Voltage State

Relay Data

Switching current max. 1 A max. 1 A
Switching voltage max. AC 250 V max. DC 150 V
Breaking capacity max. 250 W max. 30 W
(AC 12) (DC 12)
Switching operations

mechanical > 2× 10
electrical > 1× 105 (250 AC V / 1 A)

Operating Conditions

Perm. ambient temperature range -40 °C to +70 °C (T3)
Rel. humidity max. 95%
Endurance limit 5 g in all 3 levels

max. U

s

7

Please note:

When switching inductive loads the user
must be tted out with spark absorbers
(RC-modules).