Design And Working Principle; Normative Consideration Of The Components - DOLD M10SL1PR40 Mode D'emploi

Design and Working Principle

Mechanical
After the operating lever is turned to the off-position, the key can be
removed. The locking mechanism prevents further operation of the
load isolator while the key is pulled. 1 key can be removed. This design
is suitable for applications where a machine can be disconnected
directly (Stop 0), see application example 1. Without fault exclusion,
Performance Level (PL) c is reached. If an STS delay unit e. g. YRX13M
is positioned in the system between the mechanical solenoid locking
e.g. M10LPR250 unit a Performance Level (PL) e can be achieved through
the corresponding design of the monitoring circuits of this delay unit. With
this measure, the application is also suitable for stop categories 1 and 2.
M10SL1PR250
Switch
The function is identical with the mechanical design. In addition, three
contacts are positively switched when removing the keys. These contacts
may be part of one or several safety-oriented circuits. In connection with
the auxiliary contacts of the load isolator they monitor the safe function of
the mechanics (see application example 2). Only 1 key can be removed.
This design is suitable for applications where machines or systems come
to an immediate stop after disconnection. Performance Level (PL) e /
Category 3 can be achieved. By adding a logic unit, Performance Level
(PL) e / Category 4 can also be achieved. For applications with stop
categories 0, 1 or 2. For a solenoid locking unit must be added in the
system with an associated monitoring function.
SX01SLPR40
This design features a preassembled cable with stranded wires with
a length of 2 m as standard. EMC protection must be provided by the
customer.
For further information about connection and technical data of the switch,
refer to the SX data sheet.
Solenoid locking
Design and Working Principle
The design with the solenoid system is similar in function to the switch
system. However in addition the key must be released by the tumbler
magnet. Only then can the key be removed. The solenoid locking
magnet is monitored via 3 contacts which switch positively when the
electromagnet picks up. These contacts may be part of one or several
safety-oriented circuits (see application example 3 or 4). In connection
with the auxiliary contacts of the load isolator they monitor the safe
function of the mechanics. Only 1 key can be removed. This design is
suitable for applications for the stop categories 0, 1 and 2 when connected
with corresponding monitoring units. Up to Performance Level (PL) e /
Category 4 can be achieved.
ZRH01SLPR40
This design features a preassembled cable with stranded wires with
a length of 2 m as standard. EMC protection must be provided by the
customer.
For further information about connection and technical data of the solenoid
locking, refer to the ZRH data sheet.

Normative Consideration of the Components

Mechanical
The mechanical design features a 1-channel structure. Individual faults
cannot be detected. Without fault exclusion, Performance Level (PL) c
according to EN ISO13849-1 (see application example 1) can be reached
as maximum.
Switch and solenoid locking
The designs with switch and solenoid locking can reach up to Performance
Level (PL) e and Category 4, as additional circuits according to EN ISO
13849-1 are used.
Designs with solenoid locking function feature auxiliary release. This
ensures that the key can be removed in the event of a power failure.
Operating lever
The operating lever is available in the two designs black/grey or
red/yellow. The colour combination depends on the application. Red/yellow
is used if the switch is also used as emergency-stop switch disconnecting
a complete machine or system. The red/yellow version must always be
freely accessible and operable. The black/grey design is used if only part
of a machine or a partial section of a system is disconnected (zone stop).
Design of the load isolators
The load isolator are suitable for currents from 25 A to 800 A. They are
always equipped with 4 NC with 2 additional auxiliary contacts (1NO,
1NC).
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SAFEMASTER STS POWER INTERLOCKING / 05.11.20 en / 317A