Important Notice - Siemens SIRIUS 3TK2842-1 Serie Instructivo

SIRIUS
Safety Relay
Operating Instructions
Read and understand these instructions before installing, operating, or
maintaining the equipment.
!
DANGER
Hazardous voltage.
Will cause death or serious injury.
Disconnect power before working
on equipment.
Reliable functioning of the equipment is only ensured with certified compon-
ents.
The safety switching device must be installed in switchgear cubicles
complying with degree of protection IP32, IP43 or IP54, depending on the
prevailing environmental conditions.

IMPORTANT NOTICE

The products described herein are designed to be components of a customized
machinery safety-oriented control system. A complete safety-oriented system
may include safety sensors, evaluators, actuators and signaling components. It
is the responsibility of each company to conduct its own evalution of the effec-
tiveness of the safety system by trained individuals. Siemens AG, its subsidia-
ries and affiliates (collectively "Siemens") are not in a position to evaluate all of
the characteristics of a given system or product or machine not designed by
SIEMENS.
Siemens accepts no liability for any recommendation that may be implied or sta-
ted herein. The warranty contained in the contract of sale by Siemens is the sole
warranty of Siemens. Any statements contained herein do not create new war-
ranties or modify existing ones.
Application
The 3TK2842 safety relay can be used in EMERGENCY STOP devices according
to EN 418 and in safety circuits according to EN 60 204-1 (11.98), e.g. in
movable guards and protective doors or in non-contact protective devices in
accordance with IEC 61496-1 (06.98), electrical equipment for furnaces in accor-
dance with DIN VDE 0116 (10.98) and automatic firing systems for gas burners
in accordance with DIN EN 298 (02.94). Depending on the external circuit ele-
ments, safety category 4 according to DIN EN 954-1 or SIL 3 according to
IEC 61508 can be achieved.
Functional description and instructions for connection
The 3TK2842 solid-state safety relay has one safe solid-state output and one
time-delayed safe solid-state output. Three LEDs indicate the operating state
and the function.
When the device is put into operation it runs through a self-test to test the cor-
rect functioning of the internal electronics. All internal circuit components are
monitored for faults cyclically during operation.
Connect the EMERGENCY STOP button and/or the position switches or light
arrays to terminals Y11, Y12 and Y21, Y22. Connect the ON button in series with
the NC contacts of the external actuators to the supply voltage L+ (24 V DC) and
to terminal Y34. Connect cascading input 1 either via a safe output or directly to
the supply voltage L+ (24 V DC).
External actuators or loads can be switched via safe outputs 14, 24. It must be
ensured that the actuators or loads and the 3TK2842 electronic safety relay have
the same frame potential. Paralleling outputs 14 and 24 to increase the load cur-
rent is not permissible.
If electronic sensors (light-array monitoring, etc.) are used, and in single-channel
operation, Y35 must be connected to L+ (24 V DC). For autostart operation, Y32
must be connected directly to L+ (24 V DC) and Y34 must be connected to it via
NC contacts of the external actuators.
Use a power pack to IEC 60536 safety class III (SELV or PELV)
for power supply!
Terminal Operating A1
assignments voltage A2
Sensors Y11, Y12
Y21, Y22
Y35
Y32
Y34
Input 1
Outputs 14
28
2
Cable lengths for 2 x 1.5 mm
2
L+
M
Channel 1 EMERGENCY STOP or position switch
Channel 2 EMERGENCY STOP or position switch
With / without cross-circuit detection
Autostart
ON button, feedback circuit
Cascading input
Safe solid-state output
Safe solid-state output, time-delayed
max. 2000 m (total cable length for sensors)
Order No.: 3ZX1012-0TK28-1DA1
Figures
Fig. I/Ia Dimension drawings (dimensions in mm) / Terminal designation
Fig. II: Installation / Connection
Fig. III: Internal circuit: ¿ power pack, À sensors, Á Output 1, Â Output 2
Fig. IV: Protective-door monitoring, two-channel, autostart; cat. 4 to EN 954-1
with voltage-operated e.l.c.b. and delayed disconnection, stop; cat. 1
Fig. V: EMERGENCY STOP, single-channel, monitored start with additional
ON button; category 2 to EN 954-1 with voltage-operated e.l.c.b. and
delayed disconnection, stop; category 1
Fig. VI: EMERGENCY STOP, two-channel, monitored start with additional ON button;
category 4 to EN 954-1 with voltage-operated e.l.c.b. and delayed
disconnection, stop; category 1
Fig. VII: EMERGENCY STOP, two-channel, monitored start with additional ON button
and protective-door monitoring, two-channel, autostart; category 4 to
EN 954-1
Fig. VIII: Light-array monitoring, two-channel, autostart; category 4 to EN 954-1
Fig. IX: Safety mat, two-channel, autostart; category 3 to EN 954-1
*)
This wiring example only satisfies category 2 according to EN 954-1 if a warning is
automatically generated when the actuator fails or the machine control initiates a safe
state. Otherwise an alternative shut-down method is required.
Operating states
LEDs Operation
POWER RUN FAULT PS
ON
4)
flashes
on startup self-test approx. 7 sec.
Faults
• Defect in electronics
flashes
• Change in terminal assignment
• Short-circuit to 24V
No supply voltage
Technical data
Permissible ambient temperature T
u
Operation/storage
Degree of protection to EN 60 529
Rated insulation voltage
Rated impulse withstand voltage
Rated control supply voltage
Rated power
Operating range
Shock resistance (half-sine) as per IEC 60068 8 g/10 ms
Weight
Recovery time after EMERGENCY STOP
Recovery time after power failure
Release time after EMERGENCY STOP
Pickup time
Short-circuit protection
3)
Dark time
Start signal Y34
PFH / SFF (%)
MTTR / T1
Utilization category Rated operational vol-
as per IEC 60947-5-1 tage
DC-13 24 V
1)
Sensor circuits open; Cross-circuit between the sensors; Short-circuit of sensors to frame
2)
Only when using circuit variant with "cross-circuit detection"
3)
Safe outputs disconnected for test purposes; sufficiently slow actuators are not
affected.
4)
Delay time running
For further data and accessories see Catalog.
3TK2842
IEC 60 439-1 (1999)
English
*
EMERGENCY ON button
STOP
not activated activated
1) not activated off
activated
not activated not activated off
activated not activated off/on
during operation
2)
–25 to +60 °C/–40 to +80 °C
IP40, IP20 at terminals
50 V
500 V
24 V DC
1.3 W
0.9 to 1.15 x U
s
150 g
min. 200 ms
7 s
30ms/0.05 to 3s or 0.5 to 30s or 5 to 300s
max. 40 ms
no fusing necessary!
< 1 ms
pulse (min.200 ms / max. 5 s)
–11
5.358x10 / 99.35 %
8 h / 10 Years
Rated operational current
per output
1.5 A
Outputs
on
off