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Visible and invisible beam
•
•
A combination of multiple hazards
2
Safety information
2.1 General safety notes
The safety locking device must be configured and operated correctly by qualified
safety personnel according to the machine requirements.
WARNING
The user is responsible for the correct integration of the product into a safe
overall system. For this purpose, the overall system must be validated, e.g.
according to EN ISO 13849-2.
2.2 Intended use
The safety locking device is a locking unit with a safety locking function and is
suitable for the following applications:
•
Temporarily preventing access to a hazardous area
Monitoring of movable physical guards
•
In conjunction with a movable physical guard and the machine controller, the
safety locking device prevents the movable physical guard from being opened.
The locking function remains locked for as long as the hazardous machine func‐
tion is performed or until the production step has finished.
The product may be used in safety functions.
The product is only suitable for use in industrial environments.
Incorrect use, improper modification of or tampering with the safety locking device
will invalidate any warranty from SICK AG; in addition, any responsibility and
liability of SICK AG for damage and secondary damage caused by this is excluded.
2.3 Requirements for the qualification of personnel
The safety locking device must be planned in, installed, connected, commis‐
sioned, and serviced only by qualified safety personnel.
Project planning
You need safety expertise to implement safety functions and select suitable
products for that purpose. You need expert knowledge of the applicable standards
and regulations.
Mounting, electrical installation and commissioning
You need suitable expertise and experience. You must be able to assess if the
machine is operating safely.
Operation and maintenance
You need suitable expertise and experience. You must be instructed in machine
operation by the machine operator. For maintenance, you must be able to assess
if the machine is operating safely.
3
Product description
3.1 Setup and function
The safety locking device is an interlocking device consisting of a mechanically-
actuated position switch and a coded actuator. The actuator has a lower coding
level. The position switch contains a rotating switching cylinder which the actuator
grips during closing. The switching cylinder is locked or unlocked electromagneti‐
cally (variant-dependent).
When inserting and removing the actuator, switching contacts for door monitoring
are opened and closed. When locking and unlocking the locking device, switching
contacts for locking device monitoring are opened and closed.
If the locking device is locked, the actuator cannot be removed from the actuating
head. The locking device can only be locked when the protective device is closed.
3.2 Product characteristics
3.2.1
Product variants
The safety locking device is delivered in different variants. You will find an over‐
view of important distinguishing features of the variants in the following.
•
Locking principle: operating or standby current
•
Connection type: M12 plug connector or cable entry
Number and type of contacts for locking device and door monitoring
•
Complete overview of all variants: Ordering information
Standby current locking principle
i110-M
•
Locking locking device: close protective device, no voltage on the magnet
•
Unlocking locking device: apply voltage to magnet
If voltage is interrupted at the magnet, the locking device remains locked and the
protective device cannot be opened immediately.
WARNING
The locking device locks even when voltage is not present
People could get trapped.
If people are in the hazardous area, do not close the protective device
b
even voltage is not present.
Operating current locking principle
i110-E
•
Locking locking device: apply voltage to magnet
•
Unlocking locking device: disconnect voltage from magnet
If voltage is disconnected at the magnet, the locking device is unlocked and the
protective device can be opened immediately.
8020542/1PK9/2024-10-02/de, en
DANGER
Hazard due to lack of effectiveness of the protective device
In the event of a voltage drop, the safety locking device unlocks regardless of
whether the dangerous state of the machine has ended.
Assess the risk of accident. Use for protecting people requires correct
b
project planning.
3.2.2
Locking device monitoring
All variants feature at least 1 positive opening normally closed contact for locking
device monitoring. The output state changes when locking or unlocking the lock‐
ing device.
Variants with 2 positive opening normally closed contacts for locking device moni‐
toring are recommended to protect people.
3.2.3
Door monitoring
All versions feature at least 1 positive opening normally closed contact for door
monitoring. Depending on the product variant, the contacts can be positive open‐
ing normally closed contacts, normally open or normally closed contacts. The
output state changes when opening or closing the protective device.
Variants with 2 positive opening normally closed contacts for door monitoring are
recommended for process protection.
3.3 Symbols on the product
Symbols on the product
Symbol
Meaning
Positive opening normally closed contact for locking device mon‐
itoring
Positive opening normally closed contact for door monitoring
Mechanical unlocking mechanism actuated, safety locking
device unlocked
Mechanical unlocking mechanism not actuated, safety locking
device functions normally
3.4 Manual unlocking
In some situations, it necessary to unlock the locking device manually (e.g. is
faults are present). After unlocking, a function test must be performed.
Mechanical unlocking mechanism
With the mechanical unlocking mechanism, the safety locking device can be
unlocked regardless of the status.
When actuating the mechanical unlocking mechanism, the contacts for locking
device monitoring open. A stop command must be generated.
Actuating the mechanical unlocking mechanism
Ensure tensile stress is not applied on the actuator.
b
Loosen safety screw with the screwdriver.
b
Use the screwdriver to rotate the mechanical unlocking mechanism in the
b
direction of the arrow to the following symbol:
The locking device is unlocked.
✓
WARNING
Permanent actuation of the mechanical unlocking mechanism
Hazard due to lack of effectiveness of the protective device
After use, put back the mechanical unlocking mechanism, screw in the
b
safety screw and seal (e.g. with locking varnish).
4
Project planning
4.1 Manufacturer of the machine
DANGER
Failure to comply with manufacturer's obligations
Hazard due to lack of effectiveness of the protective device
Carry out a risk assessment before using the safety locking device.
b
Do not tamper with or modify the components of the safety locking
b
device.
Make sure that the safety locking device is only repaired by the manu‐
b
facturer or by someone authorized by the manufacturer. Improper repair
can lead to a loss of the protective function.
Make sure that switch-on commands which bring about a dangerous
b
state of the machine are not enabled until the protective device is
closed and the lock is activated.
Make sure that the lock is not deactivated until the dangerous state of
b
the machine has stopped.
Make sure that closing a protective device and activating the lock does
b
not cause a dangerous machine function to start by itself. This must be
controlled by a separate start command.
The safety locking device must not be bypassed (contacts jumpered),
b
turned away, removed, or rendered ineffective in any other way. Take
measures to reduce bypassing options as necessary.
If several devices are switched in succession and the simplified process according
to ISO 13849 is used to determine the performance level (PL), the PL may be
reduced.
A logical series connection of safe contacts may be possible up to PL d under
certain circumstances. For more detailed information, see ISO TR 24119.
i110 Lock | SICK
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