Zander Aachen SR3D Operation manual

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 mm2must not be ex-
ceeded.
• The line cross section must not exceed 2.5 mm2.
• 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 [phone] Fax [phone] www.microlectra.nl [email protected]

User Information
2
Safety Emergency Stop Relay SR3D
E10-2
Ver. B
E61-139-00
Fig. 1:
Dual channel emergency stop
with short circuit and earth fault
detection.
(category 4, up to PL e / SIL 3)
Advice: Follow the guidelines in „Electrical Connection“ during the start-up.
Commissioning
Procedure
1. Input circuit:
Depending on the risk evaluation choose one of the wiring
diagrams in „Applications“ (Fig. 1 to 5).
2. Choose start mode:
Connect the start button with S11 and S21 for monitored
manual start or connect S21 with S12 directly for automatic
start (Fig. 6 or 7).
Warning:
If “Automatic start” is set, bear in mind that the safety
contacts will switch immediately after the power supply is
connected. If “Monitored manual start” is set, the start
button must be opened after wiring.
3. Feedback loop:
If external contactors or extension modules are used,
connect them according to Fig. 8 or Fig. 9.
4. Power supply:
Connect the power supply to A1 and A2 (Fig. 10).
Cau-
tion:
Power must not yet be activated.
5. Starting the device:
Switch on the operating voltage.
Warning:
If the “Automatic start” starting behavior is set, the safety
contacts will close immediately.
If the “Monitored manual start” starting behavior is set, close
the start button to close the safety contacts.
LEDs
K1 and K2 are lit.
6. Triggering safety function:
Open the emergency stop circuit by actuating the connec-
ted safety switch. The safety contacts open immediately.
7. Reactivation:
Close the emergency stop circuit. If “Automatic start” is
selected, the safety contacts will close immediately.
If the “Monitored manual start” starting behavior is set, close
the start button to close the safety contacts.
Fig. 9:
Monitored manual start.
It is monitored that the start button
has been opened before the
safety switch is closed.
(Condition:
power supply may not be inter-
rupted)
Fig. 10:
Automatic start.
Maximum allowable delay when
closing the safety switches at
S12 and S13:
S12 before S13: 300ms
S13 before S12: no limit
Warning:
Safety contacts will be
activated immediately at
power-on.
Depending on the application or the result of the risk assessment according to EN ISO 13849-1, the device must be wired as
shown in Fig. 1 to Fig. 14.
Applications
Fig. 3:
Single channel emergency stop
with earth fault detection.
(category 1, up to PL c / SIL 1)
Fig. 2:
Dual channel emergency stop
with earth fault detection.
(category 3, up to PL d / SIL 2)
Fig. 4:
Dual channel safety guard
monitoring with short circuit and
earth fault detection.
(category 4, up to PL e / SIL 3)
Emergency Stop
Circuit
Start Behavior
Safety Emergency Stop Relay SR3D
Notice:
In order to activate earth
fault monitoring, S10
must be connected to PE
(protective earth) on the
AC 115 V / 230 V de-
vices. With AC/DC 24 V,
connect PE only to the
power supply unit ac-
cording to EN 60204-1.
Fig. 7:
Two channel emergency stop with
pnp-outputs/OSSD-outputs
with its own short circuit monito-
ring.
(category 4, up to PL e / SIL 3)
Fig. 11:
Feedback loop for monitored
manual start:
The feedback loop monitors
contactors or the expansion
modules .
Feedback Loop
Fig. 12:
Feedback loop for automatic
start:
The feedback loop monitors
contactors or the expansion
modules .
Power supply
and
Safety contacts
Fig. 13:
Power supply A1 and A2.
(Power supply according to techn.
Data)
Fig. 14:
Connecting load to safety con-
tacts.
(Figure shows example.
Voltage „+V“ according to techn.
Data)
Fig. 6:
Dual channel emergency stop
without fault-detection of the
safety switch and the wires.
(category 3, up to PL d / SIL 2)
Fig. 5:
Single channel emergency stop
without fault-detection of the
safety switch and the wires.
(category 1, up to PL c / SIL 1)
Fig. 8:
Single channel emergency stop
with a safety output. Wired
inside a control cabinet
(minimum degree of protection
IP54)
(category 4, bis PL e / SIL 3)

User Information
3
Safety Emergency Stop Relay SR3D
E10-2
Ver. B
E61-139-00
Maintenance
The device must be checked once per month for proper
function and for signs of tampering and bypassing of the
safety function. The device is otherwise maintenance free,
provided that it was installed properly.
Techn. Data
In compliance with EN 60204-1; EN ISO 13849-1; EN 50156-1 ; EN 62061
Operating voltage AC 230 V, AC 115 V, AC/DC 24 V
Rated supply frequency 50-60 Hz
Allowable tolerance + / - 10 %
Power consumption DC 24 V AC 230 V
approx. 2 W approx. 6.9 VA
Control voltage at S11 DC 24 V
Control current at S11...S14 max. 100 mA
Safety contacts 3 NO
Auxiliary contacts 1 NC
Switching voltage max. AC 250 V
Contact rating of safety contacts (13-14, 23-24, 33-34) *) AC: 250 V, 2000 VA, 8 A for resistive load,
250 V, 3 A for AC-15
DC: 50 V, 400 W, 8 A for resistive load;
24 V, 3 A for DC-13
Cumulative current Max. 15 A (13-14, 23-24, 33-34)
Contact rating of auxiliary contact (41-42) AC: 250 V, 500 VA, 2 A for resistive load
DC: 50 V, 100 W, 2 A for resistive load
Minimum voltage/current 24 V, 20 mA
Min. External fuses for safety contacts 6 A slow-blow or 8 A quick-blow or 10 A gG
Wire width 0.14 - 2.5 mm2
Length of control lines Max. 1000m at 0.75 mm2
Contact material AgNi, AgSnO2
Service Life mech. approx. 1 x 107
Rated impulse withstand voltage 2.5 kV (control voltage / contacts)
Dielectric strength 4 kV (DIN VDE 0110-1)
Rated insulation voltage 250 V
Protection IP20
Temperature range DC 24 V: -15 °C bis +55 °C
AC 115 V / 230 V: -15 °C bis +55 °C
(see load curve)
Degree of pollution 2 (DIN VDE 0110-1)
Overvoltage category 3 (DIN VDE 0110-1)
Weight approx. 230 g
Mounting DIN rail according to EN 60715 TH35
Advice:
For other applications than
described, please contact
the manufacturer for further
information.
Safety
Characteristics
according to
EN ISO 13849-1
Device cannot be switched on again after an emergency
stop:
• Check whether the emergency stop circuit was closed
again.
• Was the start button opened before closing of the emer-
gency stop circuit (with manual start)?
•
Is the feedback loop closed?
If the fault still exists, perform the steps listed under
“Commissioning Procedure”.
If these steps do not remedy the fault either, return the
device to the manufacturer for examination.
Opening the device is impermissible and will void the
warranty.
Device does not switch on:
• Check the wiring by comparing it to the wiring diagrams.
• Check the safety switch used for correct function and
adjustment.
•
Check whether the emergency stop circuit is closed.
• Check whether the start button (with manual start) is
closed.
• Check the operating voltage at A1 and A2.
• Is the feedback loop closed?
What to do in
Case of a Fault?
For furnaces which operate continuously where regular
inspection at sufficient short intervals in accordance to EN
50156-1 may not be performed, are excluded from this.
*) If several SR3D-24V are mounted closely together the maximum cumulative current is 9A at an ambient temperature of 20 °C or 3 A at 30 °C or 1 A at 40 °C.
If the current exceeds these limits, keep a minimum space of 5 mm between the devices.
Safety Emergency Stop Relay SR3D
Load (DC-13; 24 V) per contact <= 0,1 A <= 1 A <= 2 A
Max. lifetime [years] 20 20 20
Category: 4 4 4
PL e e e
PFHd [1/h] 1,2E-08 1,2E-08 1,2E-08
nop [Cycles per year] <= 500.000 <= 350.000 <= 100.000
Calculation under the following conditions:
Days of operation per year: 365; Hours of operation per day: 24; Switching-Cycle per hour: 1;
Maximum load AC-15 / DC-13
Max. lifetime [years] 20
Proof test interval [years] 20
PFH [1/h] 6,2E-11
PFDAVG 5,43E-06
SILCL 3
Safety
Characteristics
according to
EN 62061 /
EN 61508

User Information
4
Safety Emergency Stop Relay SR3D
E10-2
Ver. B
E61-139-00
Dimension
Drawing
Variants
Order No. 472270 SR3D, AC 230 V (50-60 Hz), fixed screw terminals
Order No. 472271 SR3D, AC 115 V (50-60 Hz), fixed screw terminals
Order No. 472272 SR3D, AC/DC 24 V (AC: 50-60 Hz), fixed screw terminals
Order No. 473270 SR3D, AC 230 V (50-60 Hz), plug-in terminals
Order No. 473271 SR3D, AC 115 V (50-60 Hz), plug-in terminals
Order No. 473272 SR3D, AC/DC 24 V (AC: 50-60 Hz), plug-in terminals
Order No. 472592 EKLS4, plug-in screw terminals kit
Order No. 472593 EKLZ4, plug-in spring-cage terminals kit
Safety Emergency Stop Relay SR3D
Load curve
Max. cumulative current depending on the ambient tempe-
rature for AC 115 V / 230 V variants.
(Min. space of 10mm between the devices )
Fixed
Terminals Plug-In
Terminals
Microlectra bv.
Hermanus Boerhaavestraat 6. 3261 ME Oud-Beijerland. Netherlands.
Tel [phone] Fax [phone] www.microlectra.nl [email protected]