Electrical Connection - Wieland SENSOR PRO STS Montageanleitung

Installation instructions (translation from original)
sensor® PRO STS
Touchless safety sensor with coding
EDM input
The EDM input can be configured as "automatic" or "monitored" (see 2 "Intended
use",number key). If the EDM input is not required, the "automatic" variant must be
selected and connected to +24 V DC.
EDM input: automatic
For contactor monitoring, the open contactors must be connected to the EDM input. For
series connection of multiple sensors all EDM inputs must be connected to +24 V DC. The
monitor for the contactors must be connected to the last sensor of the chain.
Wiring examples can be found in chapter 17.4 "Connection examples".
EDM input: monitors (start button)
Connect the EDM input to an external start button on your machine control. The EDM input
is only then recognized as set properly if after pressing the sensor and after setting the
safety inputs at least one valid start pulse is detected. The valid start pulse is detected when
after a rising edge, a falling edge within the allowable start pulse duration between 30 ms
and 5 s is detected.
Wiring examples can be found in chapter 17.4 "Connection examples".
Diagnostic output
The diagnostic output is positive switching, short-circuit protected and transmits the
various sensor states with different signals, for example, to a sensor® PRO STS.The pulsed
signals corresponding to the respective timing of the LED. The various symbols are
described in more detail under chapter 7.6
LED displays, flash codes and clocking diagnostic output
Sensor non-actuated
LED green off
LED red off
LED yellow on
Diagnostic output 0 V
Safety outputs OSSD 0 V
Note Voltage is applied
Actuator in the detection area (sensor activated), all inputs correctly set
LED green on
LED red off
LED yellow off
Diagnostic output 24 V DC
Safety outputs OSSD 24 V
Note Actuator in the detection area
Actuator in the detection area (sensor actuated), safety inputs not set (low level)
LED green flashes (1)
LED red off
LED yellow off
Diagnostic output 24 V DC
Safety outputs OSSD 0 V
Note set safety inputs
Actuator in the detection area (sensor actuated), safety inputs set (high level), waits for
start pulse
LED green Rapid flashing
LED red off
LED yellow off
Diagnostic output 24 V DC
Safety output OSSD 0 V
Note press start button
Actuator in the boundary area
LED green off
LED red off
LED yellow flashes (1)
Diagnostic output 24 V DC clocked
Safety outputs OSSD Previous state
Note Readjust sensor
Teach-in process
LED green off
LED red off
LED yellow Rapid flashing
Diagnostic output 24 V DC clocked
Safety outputs OSSD 0 V
Note Disconnect voltage to complete teach-in
Fault condition
LED green off
LED red flashes (1)
LED yellow off
Diagnostic output 0 V
Safety outputs 0 V
Note See chapter 13 "Troubleshooting"
(1) Flashing: The pulse interval (1 s) of the LED ratio is 1:1.
(2) Rapid flashing: The pulse interval (0.25 s) of the LED ratio is 1:5.
Boundary area monitoring
If the actuator is in the boundary area of the switching distances with corresponding offset
values of the sensor, it is transmitted to a sensor® PRO STS or indicated by the LED (see
chapter 7.6 "LED displays, flash codes and clocking diagnostic output").
Doc. # BA001027 - 06/2021 (Rev. D)
R1.400.xxxx.0
(2)
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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
Assembly
Safety sensor and actuator
•
− Do not use as a stopper
− External fields can affect switching distances
• Installation of the safety sensor and the associated actuator is allowed only when de-en-
ergized.
Make sure that the markings on the sensor and actuator face each other congruently.
•
The mounting position is arbitrary. However, security sensor and actuator must be
•
mounted parallel and opposite each other.
• Note the specified installation tolerances and the approved control options.
To ensure trouble-free operation and to avoid any impact on the operating distance, the fol-
lowing points should be noted:
• In order to guarantee the specified switching distance, the free zone (environment free of
electrically and magnetically conductive materials) must be adhered to.
Matching space plates for mounting on metal parts are available with the article no.
• R1.100.4100.0 box 8 mm
• R1.100.4101.0 box 10 mm
R1.100.4200.0 rectangle 8 mm
•
R1.100.4201.0 rectangle 10 mm
•
Available at Wieland Electric GmbH
• The mounting distance between two systems of the safety sensor and actuator must be
min. 15 cm.
• Attach safety sensor and actuator to the protective device so that they cannot be re-
moved.
• Use only M4 screws with flat head (e.g. M4 cheese head screws ISO 4762) for installation of
the safety sensor and actuator. Tightening torque max. 0.5 – 0.7 Nm. Use screws of non-
ferromagnetic material (e.g. brass).
We recommend using the screw covers included to secure the mounting screws against
easy disassembly.
• The safety sensor must be mounted on flat surfaces.
• The connecting cable of the safety sensor must be protected against mechanical damage.
• Consider the requirements of EN ISO 14119 during installation.
• Also consider the requirements of EN 60204-1, in particular regarding the proper laying of
cable. It is recommended to lay the sensor cable so that it is covered.
Adjustment
The stated operating distances (see chapter 17 "Technical specifications") are only valid for
mounting on non-metallic material if the safety sensor and actuator are mounted in parallel
opposite each other. Other arrangements may lead to different switching states.

Electrical connection

The electrical connection may only be carried out with the power off and by authorized
personnel.
Connect the safety sensor according to the specified wire colors and pin assignment (see
•
chapter 17.1 "Circuit diagram and pin assignment").
• Both safety outputs must always be evaluated to ensure safety.
• Since the diagnostic output is not a safety output, it may not be used for safety-relevant
information and monitoring functions.
• Make sure that the required minimum input voltage of the downstream safety evaluation
unit is not undershot. Observe the voltage drop at the safety sensor and the connecting
cable.
Series connection
The safety sensors enable a series circuit with up to 30 sensors while achieving PLe with cor-
rect wiring. For a series circuit it must be noted that the time delay accumulates for each ad-
ditional sensor. The relevant technical specifications can be found in chapter 17 "Technical
specifications". Configuration EDM input see chapter 7.4 "EDM input".
Information about power supply
• The sensor must be powered directly or indirectly with a SELV/PELV power supply.
• For use and applications as per the requirements
"for use in class 2 circuits".
1) Notice regarding the scope of the UL approval: The devices have been tested in accord-
ance with the requirements of UL 508 and CSA/C22.2 no. 14 (protection against electric
shock and fire).
Note for use in safety control systems
Do not use controllers with test pulses or turn off the test pulses in your control system.
•
The device generates its own test pulses to the safety outputs. A downstream control sys-
tem must be able to tolerate these test pulses, which may have a length up to 300 µs. De-
pending on the inertia of the connected device (control, relay, etc.), this can lead to short
switching processes.
The inputs of a connected evaluation unit must be positive-switching, as the two outputs
•
on the safety switch in the ON state deliver a level of +24 V DC.
Commissioning
During commissioning, you must make sure of the following points:
• safety sensor and actuator mounted in the correct position and firmly
• integrity of the supply line
After installation and any fault, a complete check of the safety function must be performed.
sensor® PRO STS
NOTE
NOTE
CAUTION
CAUTION
1) , the power supply must be classified
EN / 5