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Installation instructions (translation from original)
SIN 900x M
Safety switch with separate actuator
6 System description
Suggested application with redundant configuration also on the
power level
Figure 13: Suggested application
Terminal designation
Contact
E1, E2
Solenoid
11-12
NO contact
21-22
NC contact
31-32
NC contact
41-42
NC contact
The safety gate is closed while the machine is operating. The ac-
tuator is inserted in the safety switch and locked.
The enable circuits on the evaluation module are closed and the
enable circuit on the actuating module is open.
It is necessary to reach behind the safety gate for maintenance
purposes. The machine must be switched off by the operator be-
forehand.
This causes the enable circuits on the evaluation module to open
and the power level of the machine to be deactivated.
Since the hazardous movement of the machine is not stopped im-
mediately, the safety switch must not enable the actuator until
the machine afterrunning has finished. This is ensured by a suita-
9 Technical Data
9.1
Electrical data
Protection class
Solenoid
Duty cycle
Temperature class
Permanent power consumption
Operating cycles, permanent
Operating voltage
Switching elements
Rated insulation voltage U
i
Rated impulse withstand voltage U
Rated operational voltage U
Doc. # BA001307 – 03/2023 (Rev. B)
R1.311.900x.0
Monitoring function
Interlock / Release
Guard
Guard
Guard locking
Guard locking
imp
e
Wieland Electric GmbH
Brennerstraße 10 – 14
96052 Bamberg
Phone +49 951 9324-0
Fax
+49 951 9324-198
info@wieland-electric.com
www.wieland-electric.com
ble actuating module such as a zero-speed relay or a delay mod-
ule (timer). The safety contacts (positively driven NC contact) pre-
vent the machine from restarting when the safety gate is open.
The additional NO contacts can be used as signalling contacts.
In this case, these contact functions serve to improve the availa-
bility of the machine rather than safety.
If suitable evaluation modules are available, the NO contacts can
be incorporated in the safety circuit as additional monitoring de-
vices.
The contact pair used for monitoring is positively switched by
the actuator, so that the position of the safety gate is sensed
directly.
The contact pair used for monitoring the locking device is posi-
tively connected to the locking bar so that a failure of the latching
device is detected by the fail-safe controller.
An integrated fail-safe lock ensures that the guard locking can
only be activated when the actuator is plugged in (closed guard).
If locking guards/position switches with mechanical safety con-
tacts are connected in series, the performance level may be re-
duced.
For such applications ISO 14119 and TR 24119 must be applied.
7 Maintenance / Service
The switching device is maintenance free.
To assure a failure-free and long service life the following checks
have to be carried out in regular intervals:
Firm fit of all components
•
•
Assured switch function
•
Condition of all seals
•
Heavy wear and tear
In case that a failure is detected the whole switching device
must be replaced.
The actuator opening must be protected to prevent the penetra-
tion and accumulation of foreign particles (e.g. metal chips,
dust, ...).
8 Liability Disclaimer
By breach of the given instructions (concerning the intended use,
the safety instructions, the installation and connection through
qualified personnel and the testing of the safety function) manu-
facturer's liability expires.
The original operating and installation instructions are the Ger-
man language version. Other languages are a translation of the
original operating and installation instructions.
Specifications
II – totally insulated
Cable connection
100% ED (to E1, E2)
F (155 °C)
6,7 VA (W)
10 / min.
24 V AC / DC (+10 % / -15 %)
Cable connection
250 V
2,5 kV
240 V AV / 24 V AC/DC
SIN 900x M
NOT ICE
Plug connector M12
100% ED (to E1, E2)
F (155 °C
6,7 VA (W)
10 / min.
24 V AC / DC (+10 % / -15 %)
Plug connector M12
30 V
0,8 kV
24 V AC/DC
14 EN
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