User Information
1
Safety Emergency Stop Relay SR3D
E10-2
Ver. B
E61-139-00
•
2 start performances:
- monitored manual start
- automatic start
•
Short-circuit monitoring and earth fault monitoring
•
Up to PL e, SILCL 3, category 4
Correct Use
SR3D is an all-purpose emergency stop device which ensures the
quick and safe deactivation of the moving parts of a machine in
case of danger.
Applications for the SR3D include single or dual-channel emer-
gency stop circuits and guard monitoring on machines and
plants.
The SR3D is specially designed and certified for the use in
furnaces and ancillary equipment in continuously mode accord-
ing to EN 50156-1 and the use on ships, cetified by Ger-
manischer Llloyd.
Features
•
3 safety contacts
1 auxiliary contact
•
Connection of:
•
- Emergency stop buttons
- Safety switches
- Non-contact safety switches
- OSSD-Outputs
•
Control: single or dual channel
•
Feedback loop for external contactors or extension
modules
•
Redundancy and cyclical monitoring
•
Diversified forcibly guided output relays
•
LED indicator for status channel 1 and 2
Function
The emergency stop safety switching device SR3D is
designed for safe isolation of safety circuits according to
EN 60204-1 and can be used up to safety category 4, PL e
according to EN ISO 13849-1.
The internal logical system closes the safety contacts
when the start button is pressed.
If the safety switch is opened, the positively driven safety
contacts are opened and safely switch the machine off. It
is ensured that a single fault does not lead to a loss of the
safety function and that every fault is detected by cyclical
self-monitoring no later than when the system is switched
off and switched on again.
Electrical
Connection
•
When the 24 V version is used, a safety transformer
according to EN 61558-2-6 or a power supply unit with
electrical isolation from the mains must be connected.
•
External fusing of the safety contacts (6 A slow-blow or
8 A quick-action or 10 A gG) must be provided.
•
A maximum length of the control lines of 1000 meters
with a line cross section of 0.75 mm
2
must not be ex-
ceeded.
•
The line cross section must not exceed 2.5 mm
2
.
•
If the device does not function after commissioning, it
must be returned to the manufacturer unopened. Ope-
ning the device will void the warranty.
Installation
As per EN 60204-1, the device is intended for installation
in control cabinets with a minimum degree of protection of
IP54. It is mounted on a 35 mm DIN rail according to
DIN EN 60715 TH35.
For the AC 115V/230V type, keep a minimum space of
10mm between the devices.
Safety
Precautions
Fig. 1 Block diagram SR3D
Safety Emergency Stop Relay SR3D
German Lloyd
Certificate 32915-06HH
Fig. 2 Mounting / Demounting
Fig. 3 Terminals
A1:
Power supply
A2 :
Power supply
S11:
DC 24 V control voltage
S10:
Control line
S21:
Start control line
S13:
Control line
S14:
Control line
S12:
Control line
13-14:
Safety contact 1
23-24:
Safety contact 2
33-34:
Safety contact 3
English translation
•
All relevant safety regulations and standards are to be
observed.
•
The overall concept of the control system in which the
device is incorporated must be validated by the user.
•
Failure to observe the safety regulations can result in
death, serious injury and serious damage.
•
Note down the version of the product (see label “Ver.”)
and check it prior to every commissioning of a new de-
vice. If the version has changed, the overall concept of
the control system in which the device is incorporated
must be validated again by the user.
•
Installation and commissioning of the device must be
performed only by authorized personnel.
•
Observe the country-specific regulations when installing
the device.
•
The electrical connection of the device is only allowed to
be made with the device isolated.
•
The wiring of the device must comply with the instruc-
tions in this user information, otherwise there is a risk
that the safety function will be lost.
•
It is not allowed to open the device, tamper with the
device or bypass the safety devices.
Microlectra bv.
Hermanus Boerhaavestraat 6. 3261 ME Oud-Beijerland. Netherlands.
Tel 31(0)186-616290 Fax 31(0)186-610349 www.microlectra.nl info@microlectra.nl
