Application; Functions And Connections; Operating States; Technical Data - Siemens SIRIUS 3TK2820 Operating Instructions Manual

SIRIUS
Safety Switch Gear
Operating Instructions
Read and understand these instructions before installing,
operating, or maintaining the equipment.
DANGER
!
Hazardous voltage.
Will cause death or serious injury.
Turn off and lock out all power supplying this device before
working on this device.
CAUTION
Reliable functioning of the equipment is only ensured with
certified components.
The devices must be installed in switchgear cabinets complying with degree of pro-
tection IP32, IP43 and IP54, depending on the prevailing environmental conditions.
IMPORTANT NOTE
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, signaling units and concepts for ensuring
safe switch-off. It is the responsibility of each manufacturer to ensure the correct
overall functionality of its systems and machines. Siemens AG, its subsidiaries
and affiliates (collectively "Siemens") are not in a position to guarantee all of the
characteristics of a given system or product not designed by Siemens.
Siemens accepts no liability for any recommendation that may be implied or stat-
ed 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 3TK2820 safety switch gear can be used in EMERGENCY-STOP devices
according to DIN EN ISO 13850 and in safety circuits according to VDE 0113-1
and/or DIN EN 60204-1, e.g. with movable guards and protective doors.
Depending on the external circuit, SIL3 according to IEC 61508 or PLe according
to EN 13849-1 can be achieved. Depending on the risk assessment, additional
measures may be required in the sensor circuit (e.g. protected laying of cables).
When using the safety switch gear in the "Automatic Start" operating mode, the
automatic restart (according to EN 60 204-1, Section 9.2.5.4) must be prevented
through adequate measures in the case of an emergency switch-off (EMERGEN-
CY-STOP).

Functions and connections

The 3TK2820 safety switch gear has three enabling circuits (safe circuits, NO
contacts) and a signaling circuit (not safe, NC contact). The number of enabling
circuits can be completed by adding one or more 3TK2830 expansion modules.
Two LEDs indicate the operating mode of the device.
When the EMERGENCY STOP button or the limit switch is unlocked and when
the ON button is pressed, the internal circuits of the safety switch gear and the
external contactors are checked for proper functioning.
Connect the EMERGENCY STOP button or the limit switch to terminals T1/IN1
and T2/IN2. The ON button is connected in series with the NC contacts of the ex-
ternal contactor (feedback circuit) at terminals T3/IN3.
Terminal assignments
Operating voltage A1 L / +
A2 N / –
Sensors IN1 Sensor channel 1
IN2 Sensor channel 2
IN3 ON button, feedback circuit
Test outputs T1 Test output 1 (for IN1)
T2 Test output 2 (for IN2)
T3 Test output 3 (for IN3)
Outputs 13 - 14 Enabling circuit 1 (NO, relay contact)
23 - 24 Enabling circuit 2 (NO, relay contact)
33 - 34 Enabling circuit 3 (NO, relay contact)
41 - 42 Signaling circuit (NC, relay contact)
2

Operating states

LEDs Operation
DEVICE OUT PS EMERGENCY
STOP
ON not activated
activated
not activated
Faults
Cross circuit in the sensor circuit
Change-over switch
top Automatic start
bottom Monitored start

Technical data

Permissible ambient temperature T
Operation/storage
Degree of protection according to EN 60 529
Rated insulation voltage U
i
Rated impulse withstand voltage U
Rated control supply voltage U
s
3TK2820-.CB30
3TK2820-.AJ20
3TK2820-.AL20
Power consumption
Operating range
with AC control
with DC control
Release time
two-channel, SIL 3
single-channel, SIL 1
Utilization category Rated operational
as per IEC 60947-5-1 voltage U
AC-15 230 V
DC-13 24 V
115 V
230 V
Continuous current I
th
Short-circuit protection for enabling and signaling circuits
Fuse links DIAZED/NEOZED gL/gG or quick 10A
Miniature circuit breaker C characteristic 1,6 A / B characteristic 2 A
SITOP select diagnostics Order number 6EP1961-2AB00
module
Be sure to fit the specified fuses. Otherwise safe interruption in
the event of a fault cannot be guaranteed.
On first commissioning or after device replacement, the correct
functioning of all machine/system safety functions must be
checked so that wiring errors and accidental terminal mix-up can
be detected!
For further data and accessories see Catalog.
3TK2820
DIN EN 60 947-5-1 (2005-02)
English
ON Enabling
circuits
activated closed
not activated open
not activated open
open
–25 to +60 °C
u
–40 to +80 °C
IP40, IP20 at the terminals
300 V
4 kV
imp
24 V AC/DC
115 V AC
230 V AC
2.5 W
0.85 to 1.1 x U
s
0.85 to 1.2 x U
s
≤ 10 ms
≤ 70 ms
Rated operational current I
(with all enabling circuits loaded)
e
4 A
4 A
0.2 A
0.1 A
5 A
Order No.: 3ZX1012-0TK28-3DA1
e