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BETA Monitoring
Monitoring of Plants and Devices
5
TT5 2 EMERGENCY-STOP modules
14/11
Siemens ET B1 · 10/2008
14
■
Overview
EMERGENCY-STOP circuits are common safety measures in all lab-
oratory equipment and industrial plants. The EMERGENCY-STOP
modules used here must meet the most rigorous demands with
regard to functional reliability. Benchmark is the degree of self-
monitoring. The Machine Directive 98/37/EC, valid from 31.2.1994,
only specifies global safety standards. Details on how to implement
individual safety demands are defined in standards, e.g. by the
European Committee for Electrotechnical Standardization
(
CENELEC), which form the basis for international standards.
■
Benefits
•
The electrical isolation between electric circuit and control
meets the requirements of the standard
•
An LED for the operating and switching state provides
constant information on the operating state
•
The safety category 4 to EN 954-1 expands the application
options in many fields
•
Compliance with the regulations according to EC Machine
Directive 98/37/EC supports a high safety standard for those
working in the plants.
■
Technical specifications
5
TT5 200
Standards
IEC 60204-1; EN 60204-1 (VDE 0113-1)
Supply
•
Rated control voltage U
c
V AC
230
-
Operating range
× U
c
0.8 ... 1.1
•
Rated frequency f
n
Hz
50
•
Rated power dissipation P
v
Coil/drive
3.5
Contact per pole
VA
0.8
Control voltage
Terminal Y1
V AC/DC 24
Control current
Terminal Y1
DC mA
45
Recovery time
ms
500
Safety
•
Electrical isolation, creepage distances and clearances, actuator/contact
mm
3
•
Rated impulse withstand voltage U
imp
drive/contact
kV
> 4
Contacts
•
Contacts
NO contacts
AC-15
A
3
NC contacts
AC-15
A
2
NO contact/
NC contact
AC-1
A
5
•
Contact gap
mm
> 1
•
Electrical service life
AC-15, 2 A, 230 V AC
Switching
cycles
10
5
•
Reliable switching frequency
Switching
cycles/h
600
Vibration resistance
Amplitude
Acc. EN 60068-2-610 Up to 55 Hz mm
0.35
Terminals
•
Terminals
± screw (Pozidriv)
PZ 1
•
Conductor cross-sections of main current paths
-
Rigid
Max.
mm
2
2
× 2.5
-
Flexible, with end sleeve
Min.
mm
2
1
× 0.5
Permissible ambient temperature
°C
0 ...
+50
Resistance to climate
Acc. to EN 60068-1
0/55/04
© Siemens AG 2008