2
Operating instructions
Position switch with safety function
T 335 AS
T 336 AS
EN
There are no residual risks, provided that the safety instructions as well
as the instructions regarding mounting, commissioning, operation and
maintenance are observed
1.6 Warning about misuse
In case of improper use or manipulation of the safety switch-
gear, personal hazards or damages to machinery or plant
components cannot be excluded The relevant requirements
of the standard EN 1088 must be observed
1.7 Exclusion of liability
We shall accept no liability for damages and malfunctions resulting from
defective mounting or failure to comply with this operating instructions
manual The manufacturer shall accept no liability for damages
resulting from the use of unauthorised spare parts or accessories
For safety reasons, invasive work on the device as well as arbitrary
repairs, conversions and modifications to the device are strictly
forbidden; the manufacturer shall accept no liability for damages
resulting from such invasive work, arbitrary repairs, conversions and/or
modifications to the device
2. Product description
2.1 Ordering code
This operating instructions manual applies to the following types:
T
➀
33
➁
➂
-AS
No. Option
Description
T
Slow action
A
➀
Actuator selection refer to main catalogue "Safety Technology"
➁
5
Metal enclosure
6
Thermoplastic enclosure
➂
ST
M12 x 1 connector
FK
Flat cable connection
Only if the information described in this operating instructions
manual are realised correctly, the safety function and therefore
the compliance with the Machinery Directive is maintained
2.2 Special versions
For special versions, which are not listed in the order code below 21,
these specifications apply accordingly, provided that they correspond to
the standard version
2.3 Purpose
The safety switch is suitable for hinged or sliding guards, which need
to be closed in order to provide for the necessary operational safety
The combination of the safety switch and the AS-i ASM safety monitor
provides a safe monitoring of the condition of the corresponding safety
guard
The safety function consists in safely switching off the code
transmission when the safety guard is opened and maintaining the safe
switched off condition for as long as the safety guard is open
An AS-Interface Safety at Work component functions on the basis of
an individual code generator (8 x 4 bit) This safety code is cyclically
transmitted over the AS-i network and monitored by the ASM safety
monitor
The component status can be evaluated through a PLC with AS-
Interface master The safety-related functions are enabled by means of
the AS-i safety monitor
The user must evaluate and design the safety chain in
accordance with the relevant standards and the required
safety level
2.4 Technical data
Standards:
EN 60947-5-1, EN 50295,
EN ISO 13849-1, IEC 61508
Design:
fixings to EN 50041
Enclosure:
335: zinc die-cast, enamel finish
336: glass-fibre reinforced thermo-
plastic, self-extinguishing
Switching system:
Slow action, positive break NC contact
A
Mechanical life:
≥ 1 million operations
Max switching frequency:
5000/h
Max Actuating speed:
1 m/s
Response time:
< 100 ms
Termination:
335: connector M12, 5 pole, or FK
336: connector M12, 4 pole, or FK
Electrical data - AS-Interface:
AS-i supply voltage:
180 … 316 VDC through AS-Interface,
reverse polarity-proof (stabilised PELV units)
AS-I power consumption:
≤ 0.05 A
AS-i device insulation:
internal short-circuit proof
AS-I specification:
Version:
V 30
Profile:
S-0BFF
IO-Code:
0x0
ID-Code:
0xB
ID-Code 1:
0xF
ID-Code 2:
0xF
AS-interface inputs:
Channel 1:
DI 0 / DI 1 = dynamic code transmission
Channel 2:
DI 2 / DI 3 = dynamic code transmission
AS-interface outputs:
DO 0 … DO 3:
no function
AS-Interface parameter port:
P0:
Channel 2 switched
P1 … P3:
no function
Input module address:
0
preset to address 0, can be changed through
AS-interface bus master or hand-held programming device
LED switching conditions display:
LED yellow:
Channel 1, SaW-Bit 01
LED green-red (AS-i Duo LED):
AS-Interface supply voltage /
AS-Interface communication error /
slave address = 0 or periphery error detected
LED yellow:
Channel 2, SaW-Bit 23
Ambient conditions:
Protection class:
IP67
Ambient temperature:
−25 °C … +60 °C
Storage and transport temperature:
–25 °C … +85 ºC
Relative humidity:
30 … 95%,
no condensation, no icing
Resistance to vibration:
10 … 150 Hz (035 mm / 5 g)
Resistance to shock:
30 g / 11 ms
Protection rating:
II
x
(only 336)
Overvoltage category:
III
Degree of pollution:
3
Rated impulse withstand voltage U
imp
:
800 V
Rated insulation voltage U
i
:
32 VDC
2.5 Safety classification
Standards:
EN ISO 13849-1, IEC 61508
PL:
up to
Control category:
up to 1
PFH-value
:
114 x 10
-6
/ h up to max 100,000 switching cycles/year
SIL:
up to 1
Service life:
20 years
If a fault exclusion of a hazardous damage to the 1-channel
mechanics is authorised and sufficient protection
against tampering is ensured, suitable up to:
PL:
up to d
Control category:
up to 3
PFH-value:
101 x 10
-7
/h up to max 100,000 switching cycles/year
SIL:
up to 2
Service life:
20 years
