Zander Aachen SR7C Operation manual

User Information
H. ZANDER GmbH & Co. KG • Am Gut Wolf 15 • 52070 Aache • Germa y
Tel [phone] • Fax [phone] • [e-mail] • www.zander-aachen.de
1
Emergency Stop Safety Relay SR7C
H10
Ver. A
E61-141-00
Correct Use The SR7C is a universal emergency stop safety switching device
with seven safe relay outputs that can quickly and safely stop the
moving parts of a machine or system in case of danger
Applications for the SR7C include single or dual-channel emer-
gency stop circuits and guard monitoring on machines and sys-
tems
Features
Function
The emergency stop safety switching device SR7C is
designed for safe isolation of safety circuits according to
EN 60 04-1 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.
The operating status of the device is indicate by the auxilia-
ry transistor outputs O1 and O .
O1: Ready. PWR is connected.
O : Both relay channel K1, K are switched on.
Electrical
Connection
• A safe transformer according to IEC 61558- -6 or a
power supply unit with electrical isolation from the
mains must be connected.
• External fusing of the safety contacts must be provided.
• A maximum length of the control lines of 1000 meters
with a line cross section of 0.75 mm must not be
exceeded.
• The line cross section must not exceed .5 mm .
• 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 60 04-1, 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.
Safety
Precautions
Fig. 1 Block diagramm SR7C
Fig. 2 In tallation / removal
Fig. 3 Connection
A1: Power Supply
A2 : Power Supplay
S11: DC 24V control volta e
S10: Control line
S12: Control line
S13: Control line
S14: Control line
S21: Start, Control line
O1;O2: Aux transistor outputs
0V: Reference common O1, O2
81-82: Auxiliary Contact
91-92: Auxiliary Contact
101-102: Auxiliary Contact
101-112: Auxiliary Contact
13-14 bis 73-74:
Safety Out1-7
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: x”)
and check it prior to every commissioning of a new
device. 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
instructions 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.
• 7 safe, redundant relay outputs
• 4 auxiliary relay and 2 auxiliary semiconductor outputs
• Connection of:
- Emer ency stop buttons
- Safety switches
- Non-contact safety switches
- OSSD-Outputs
• Sin le or dual-channel operation possible
• Feedback loop for monitorin downstream contactors or
expansion modules
• Cyclical monitorin of the output contacts
• Indication of the swichin state via LED
• 2 start behavior possible:
- Monitored manual start
- Automatic start
• Up to PL e, SILCL 3, cate ory 4
• STOP-cate ory: 0

User Information
H. ZANDER GmbH & Co. KG • Am Gut Wolf 15 • 52070 Aache • Germa y
Tel [phone] • Fax [phone] • [e-mail] • www.zander-aachen.de
Emergency Stop Safety Relay SR7C
H10
Ver. A
E61-141-00
Note: The items listed under “Electrical connection” must be observed durin commissionin .
Commissionin
Procedure
1. Wiring emergency stop circuit:
Wire the emergency stop circuit according to the required
Performance Level determined (see Fig. 1 to Fig. 5).
2. Wiring start circuit:
Wire the start circuit according to Fig. 6 or Fig. 7 to set the
starting behavior.
Warning:
If “Automatic start” is set, bear in mind that the safety con-
tacts will switch immediately after the power supply is
connected. If “Monitored manual start” is set, the start
button must be opened after wiring.
3. Wiring feedback loop:
If your application provides for external contactors or ex-
pansion modules, connect them to the device according to
Fig. 8 or Fig. 9.
4. Wiring power supply:
Connect the power supply to terminals A1 and A (Fig. 10).
Warning: Wiring only in de-energized state.
5. tarting 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 connected
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. 6:
Monitored manual start.
It is monitored that the start button
was opened before the
emer ency stop button closes.
(Prerequisite: operatin volta e
must not be interrupted.)
Fig. 7:
Automatic start.
Max permitted delay durin
closin of the safety switches on
S12 and S13:
S12 before S13: 300 ms
S13 before S12: any
Warning:
Safety contacts switch
immediately when the
power supply is connected.
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. 11.
Applications
Fig. 3:
Sin le-channel emer ency stop
circuit with earth fault monitorin .
(cate ory 1, up to PL c)
Fig. 2:
Two-channel emer ency stop
circuit with earth fault monitorin .
(cate ory 3, up to PL d)
Fig. 1:
Two-channel emer ency stop
circuit with short circuit and earth
fault monitorin .
(cate ory 4, up to PL e)
Fig. 4:
Two-channel slidin uard
monitorin with short circuit and
earth fault monitorin .
(cate ory 4, up to PL e)
Emergency Stop
Circ it
Starting Behavior
Warning only for the 24V version:
In order to activate earth fault monitoring, the PE must be
connected only to the power supply unit in accordance with
EN60 04-1.
Corresponded to the application, the starting circuit have to
be wired according to Fig. 6 or Fig. 7.
Fig. 5:
Two-channel emer ency stop with
pnp-outputs/OSSD-outputs
with short circuit monitorin .
(cate ory 4, up to PL e)
Fig. 8:
Feedback loop for monitored
manual start:
The feedback loop monitors
contactors or the expansion
modules.
Feedback Loop Fig. 9:
Feedback loop for automatic
start:
The feedback loop monitors
contactors or the expansion
modules.
Power s pply
and
Safety contacts
Fig. 10:
Power supply A1 and A2.
(Power supply accordin to techn.
Data )
Fig. 11:
Connectin load to safety con-
tacts.
(Fi ure shows example.
Volta e „+V“ accordin to techn.
Data)

User Information
H. ZANDER GmbH & Co. KG • Am Gut Wolf 15 • 52070 Aache • Germa y
Tel [phone] • Fax [phone] • [e-mail] • www.zander-aachen.de
3
Emergency Stop Safety Relay SR7C
H10
Ver. A
E61-141-00
Maintenace
The device must be checked once per month for proper
function and for signs of tampering and bypassing of the
safety function.
Techn. Data
Corresponds to the standards EN 60 04-1; EN ISO 13849-1 ; EN 6 061
Operating voltage AC/DC 4 V
Rated Supply Frequency AC: 50-60 Hz
Permissible deviation + / - 10 %
Power consumption DC 24 V AC 24 V
approx. 4.5 W approx. 8.5 VA
Control voltage at S11 DC 4 V
Control current S11..S14 approx. 50 mA
Safety contacts 7 NO contacts
Auxiliary contacts 4 NC contacts
Auxiliary transistor outputs (O1, O ) DC 4 V / 30 mA, over current protected
Max. switching voltage AC 50 V
Safety contact breaking capacity AC: 50 V, 000 VA, 8 A for ohmic load (6 switching cycles/ min)
(13-14, 3- 4, 33-34,43-44, 53-54, 63-64, 73-74) 50 V, 3 A for AC-15
DC: 40 V, 3 0 W, 8 A for ohmic load (6 switching cycles/ min)
4 V, 3 A for DC-13
Max. total current through all 7 contact up to Ta=40 °C:
35 A 10 mm spacin between the devices
20 A no spacin between the devices
Auxiliary contacts braking capacity AC: 50 V, 000 VA, 8 A for ohmic load
(81-8 , 91-9 , 101-10 ,101-11 ) DC: 40 V, 3 0 W, 8 A for ohmic load
Minimum contact load 4 V, 0 mA
Min. Contact fuses 10 A gG
Max. line cross section 0.14 - .5 mm
Max. length of control line x 1000 m at 1.5 mm , x 500 m at 0.75 mm
Contact material AgSnO
Contact service life mech. approx. 1 x 10
7
Test voltage .5 kV (control voltage / contacts)
Rated impulse withstand voltage, leakage path/air gap 4 kV (DIN VDE 0110-1)
Rated insulation voltage 50 V
Degree of protection IP 0
Temperature range -15 °C bis +40 °C
Degree of contamination (DIN VDE 0110-1)
Overvoltage category 3 (DIN VDE 0110-1)
Weight approx. 350 g
Mounting DIN rail according to EN 60715 TH35
Note:
Additional data can be requested from the manufacturer for
applications that deviate from these conditions.
Safety
Characteristics
Accordin to
EN ISO 13849-1
The device is certified according to EN ISO 13849-1 up to a
Performance Level of PL e.
Device cannot be switched on again after an emergency
stop:
• Check whether the emer ency stop circuit was closed
a ain.
• Was the start button opened before closin of the
emer ency 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 wirin by comparin it to the wirin dia rams.
• Check the safety switch used for correct function and
adjustment.
• Check whether the emer ency stop circuit is closed.
• Check whether the start button (with manual start) is
closed.
• Check the operatin volta e at A1 and A2.
• Is the feedback loop closed?
What to Do in
Case of a Fault?
The device is otherwise maintenance free, provided that it
was installed properly.
Safety characteristics according to EN ISO 13849-1 for all variants of SR7C
Load (DC-13; 24 V) <= 0,1 A <= 1 A <= 2 A
T10d [years] 20 20 20
Category 4 4 4
PL e e e
PFHd [1/h] 2,47E-08 2,47E-08 2,47E-08
nop [cycle / year] <= 500.000 <= 350.000 <= 100.000

User Information
H. ZANDER GmbH & Co. KG • Am Gut Wolf 15 • 52070 Aache • Germa y
Tel [phone] • Fax [phone] • [e-mail] • www.zander-aachen.de
4
Emergency Stop Safety Relay SR7C
H10
Ver. A
E61-141-00
Dimension
Drawin
Variants
Order No. 47 4 SR7C, 4 V AC/DC (50-60 Hz), fixed screw terminals
Order No. 47 5 SR7C, 4 V AC/DC (50-60 Hz), without plug-in terminals
Order No. 474 4 SR7C, 4 V AC/DC (50-60 Hz), incl. plug-in screw terminals
Order No. 475 4 SR7C, 4 V AC/DC (50-60 Hz), incl. plug-in dual tensile terminals
Order No. 47 59 EKLS4, set of plug-in screw terminals
Order No. 47 595 EKLT4, set of plug-in dual tensile spring terminals
Fixed
Terminals
Plug-In
Terminals