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3TK28xx 데이터시트 PDF




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부품번호 3TK28xx 기능
기능 Safety Integrated Application Manual
제조업체 Siemens
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3TK28xx 데이터시트, 핀배열, 회로
6.1 Switch Safely
The following circuit examples have
been harmonized with the German
Trade Association (BG) and have been
approved.
• Contactor circuits
• SIGUARD safety combinations
using contactors
using safety relays
Suitable for:
• EMERGENCY OFF
• Protective door monitoring
functions
• Press controls
EMERGENCY OFF circuits for ex-
tremely simple machines
EMERGENCY OFF switch
The EMERGENCY OFF function may
only be fed through an EMERGENCY
OFF switch for extremely simple
machines, depending on the result of
a risk analysis. In this particular case,
only Stop Category 0 is possible.
Such an EMERGENCY OFF switch
switches, contrary to usual EMER-
GENCY OFF pushbuttons, the main
circuit (circuit diagram 6/1).
An EMERGENCY OFF switch must
be configured, so that
• There is only one EMERGENCY
OFF switch;
• the EMERGENCY OFF switch is
located in the supply to those
circuits which can result in hazard-
ous motion in the system. The com-
plete power supply to all of the cir-
cuits does not have to be interrup-
ted;
• the EMERGENCY OFF switch must
be able to interrupt the current of
the largest motor when the motor
stalls;
• the sum of the currents of all of the
loads which must be disconnected
using the EMERGENCY OFF switch
must be able to be safely interrup-
ted.
An EMERGENCY OFF switch may
• be manually actuated;
• act on an undervoltage release via
one or several EMERGENCY OFF
control devices (circuit diagram 6/1);
• be provided with overload- and/
or short-circuit releases (version
as circuit-breaker);
• be simultaneously used as main
switch, if it additionally fulfills the
requirements for a main switch
(however, a main switch must
disconnect all circuits).
An example for such an EMERGENCY
OFF switch for extremely simple
machines is illustrated in circuit dia-
gram 6/2.
Manual
drive
mechanism
To loads, which must
be shutdown for an
EMERGENCY OFF
“EMERGENCY OFF switch”
To loads, which don’t have to
be/may not be disconnected
for EMERGENCY OFF
Main switch
Supply
Switch lock
Release
Mushroom-head
pushbutton
EMERGENCY
OFF
control device
U<
Circuit diagram 6/1
EMERGENCY OFF switch with manual actuation or remote actuation via
undervoltage release
“EMERGENCY OFF switch”
To loads which
don’t have to
be/may not be
disconnected for
EMERGENCY OFF
Off
On
K1
Control
off
on K2
Main
switch
Supply
K1
e.g. plant protective conductor
K2
To loads which must be shutdown
for EMERGENCY OFF
Circuit diagram 6/2
Example of a machine control with EMERGENCY OFF switch
(this is only permissible with some restrictions)
6/2 Safety Integrated Application Manual Siemens AG




3TK28xx pdf, 반도체, 판매, 대치품
6.2 3TK28 SIGUARD Contactor Safety Combinations
6
The internal circuit diagrams are valid
for DC-operated devices. The AC-
operated SIGUARD combinations
essentially correspond to those for
DC operation. Only the polarity pro-
tection diode V1 is eliminated and a
bridge rectifier is located in front of
every contactor. This means that AC-
operated SIGUARD contactor safety
combinations can also be used for DC
voltages with some restrictions.
L+ X1
3
X2 X3
4
X4 X5
12
X6 13 23 25
U
R3
K3
K1 K2
R2
K3
K1
H2
K1 V1 K3
5
L-
K1
K2
V3 R1 K2
H1
6
K1
K2 K2 K2
K3 K3
V2
K3
14 24 (26)
1 Enabling contacts
2 Signaling contacts
3 Signal transmitter
4 “Ready ON“
For 3TK28 01-3TK28 04
and 3TK29:
5 “Ready” LED
6 “ON” LED
Circuit diagram 6/8
Internal circuit diagram of 3TK28 01, 3TK28 02 contactor safety combination
(DC operation) NC signaling contact for 3TK28 02. For 3TK 2801/02, terminals “X2, X4,
X6” are at the top, for TK 2803, there is no terminal “X3”
L1/L+
N/L-
F1
L1/L+
34
X1 (X2) (X3) (X4) X5
(X6)
1
13
2
K1
K2
K3
1 Enable
2 Signal
3 EMERGENCY
OFF signal
transmitter
4 “Ready ON”
N/L-
X2 X4
X6 14
Circuit diagram 6/9
Contactor safety combinations 3TK28 01 to 3TK2804 for EMERGENCY OFF circuits
Safety Integrated Application Manual Siemens AG 6/5

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3TK28xx 전자부품, 판매, 대치품
L1/L+
N/L-
F1
“Ready
ON”
L1/L+
V1
X1
EMERGENCY OFF
X3
X5
13 23 33 43 53 65
KM1
H1
R3 K3 D3
R1 R5
U
K2
H3
K3
D1 K1
K1 K1 K3
K3
K1 K2 K2
H2 K1
D2 K2 R2
N/L-
X2 X4
X6
14 24 34
KM1
N/L-
44 54 66
Circuit diagram 6/14
Contactor safety combination 3TK28 06 for a single-channel EMERGENCY OFF circuit.
This circuit can also be used for the 3TK28 05 (Cat. 2).
L1
L2
L3
KM1
M
3~
L1/L+
N/L-
F1
“Ready
ON”
L1/L+
V1
X1
EMERGENCY
OFF
X3
X5 13 23 33 43 53 65
KM1
KM2
H1
R1 R5
U
D1 K1
R3 K3 D3
K2
H3
K3
K1
K3
K2 K2
H2 K1
K1 K3 D2 K2 R2
N/L- X4 X6
14 24 34 44 54 66
KM1
N/L-
KM2
Circuit diagram 6/15
Contactor safety combination 3TK28 06 for a two-channel EMERGENCY OFF circuit.
This circuit can also be used for the 3TK28 05 (Cat. 3).
6/8 Safety Integrated Application Manual Siemens AG
L1
L2
L3
KM1
KM2
M
3~

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