Yale SLE 3 Operation Manual
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Before installing hoist, fill in the information below.
Refer to the Hoist and Motor data plates.
Model No. _____________________________________
Serial No. _____________________________________
Purchase Date _____________________________________
Voltage _____________________________________
Rated Load _____________________________________
Follow all instructions and warnings for inspecting, maintaining and operating this product.
The use of any hoist presents some risk of personal injury or property damage. That risk is greatly increased if proper
instructions and warnings are not followed. Before using this hoist, each operator should become thoroughly familiar with all
warnings, instructions and recommendations in this manual. Retain this manual for future reference and use.
Forward this manual to operator. Failure to operate equipment as directed in manual may cause injury.
Electronic Control Unit SLE 3
Operation Manual
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Contents
1 General information .......................................................................................................................................................................................... 5
1.1 General information on these operating instructions .................................................................................................................................. 5
1.2 Contents of the operating instructions .......................................................................................................................................................... 5
1.3 Approvals / Test marks ..................................................................................................................................................................................... 5
1.4 Disclaimer / Loss of warranty .......................................................................................................................................................................... 5
1.5 Symbols .............................................................................................................................................................................................................. 6
1.6 Target group ....................................................................................................................................................................................................... 7
1.7 Warranty claims ................................................................................................................................................................................................. 7
1.8 Misuse ................................................................................................................................................................................................................. 7
1.9 Commissioning / Operation / Documentation ............................................................................................................................................... 7
1.10 Standards and directives .................................................................................................................................................................................. 8
1.11 Intended use ....................................................................................................................................................................................................... 8
2 General safety instructions .............................................................................................................................................................................. 9
2.1 Installation requirements .................................................................................................................................................................................. 9
2.1.1 Protective conductor .................................................................................................... 9
2.2 Residual risks ................................................................................................................................................................................................... 10
3 Product and functional description .............................................................................................................................................................. 11
3.1 Description ....................................................................................................................................................................................................... 11
3.2 Load sensor ...................................................................................................................................................................................................... 11
3.3 Front view ......................................................................................................................................................................................................... 12
3.4 Block diagram SLE 3 ....................................................................................................................................................................................... 13
3.5 Schematic circuit diagram ............................................................................................................................................................................. 14
3.6 Safety functions ............................................................................................................................................................................................... 14
3.6.1 Overload cut-off .......................................................................................................... 14
3.6.2 Sensor errors .............................................................................................................. 15
3.7 Control and monitoring functions ................................................................................................................................................................. 15
3.7.1 Actuation ..................................................................................................................... 15
3.7.2 Relay outputs ............................................................................................................. 16
3.7.3 Motor management .................................................................................................... 16
3.7.4 Operating time counter .............................................................................................. 18
3.7.5 Temperature monitoring for hoist and travel motors ................................................. 18
3.7.6 Signaling relays .......................................................................................................... 19
4 Installation ........................................................................................................................................................................................................ 20
4.1 Dimensions ....................................................................................................................................................................................................... 20
4.2 Attachment possibilities ................................................................................................................................................................................. 20
4.3 Cable connection ............................................................................................................................................................................................. 20
4.4 Cables ............................................................................................................................................................................................................... 20
4.5 Mounting ........................................................................................................................................................................................................... 20
5 Commissioning, tests, settings and maintenance ..................................................................................................................................... 21
5.1 Commissioning and regular tests ................................................................................................................................................................. 21
5.2 Change to the cut-off point ............................................................................................................................................................................ 22
5.3 Settings ............................................................................................................................................................................................................. 22
5.3.1 Testing bay function ................................................................................................... 22
5.3.2 Activating the testing bay function ............................................................................. 23
5.4 Crane test .......................................................................................................................................................................................................... 24
5.4.1 Activation of the function "Crane test": ...................................................................... 24
5.4.2 Deactivation of the crane test .................................................................................... 24
5.5 Documentation of changes to the cut-off point .......................................................................................................................................... 25
5.6 Device or sensor replacement ....................................................................................................................................................................... 26
5.7 Maintenance ..................................................................................................................................................................................................... 26
5.8 Wear parts ........................................................................................................................................................................................................ 26
6 Error and warning messages, faults ............................................................................................................................................................. 27
6.1 Operation .......................................................................................................................................................................................................... 27
6.2 Error state indicators ...................................................................................................................................................................................... 28
6.3 Warning messages .......................................................................................................................................................................................... 29
7 Decommissioning............................................................................................................................................................................................ 30
8 Technical data .................................................................................................................................................................................................. 31
8.1 Rating plates .................................................................................................................................................................................................... 33
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8.2 Type designation ............................................................................................................................................................................................. 33
1 General information
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1 General information
1.1 General information on these operating instructions
These operating instructions serve as safety manual in the sense of the safety standards for functional safety of the SLE 3 electronic control unit for the manufacturer's
hoists. They are aimed at the manufacturers, operators, commissioning engineers and
service personnel of hoists.
They contain requirements and information on intended use of the safety-based control
unit.
They must be available to the technical personnel of the machine manufacturer or
machine operator during the complete period of use and be followed at all times for
assembly, electrical installation, configuration, commissioning, maintenance and
diagnosis.
The safety instructions must be followed.
The chapter "Safety instructions" in the original operating instructions for the hoist
contains further requirements, and the chapter "Electrical installations" provides further
information and explanations, which must also be followed.
1.2 Contents of the operating instructions
These operating instructions contain information on the following subjects:
• Safety instructions
• Product and functional description
• Installation
• Commissioning and settings
• Testing
• Maintenance
• Error and warning messages, faults
• Decommissioning
• Technical data
• Approvals
The necessary expertise needed for planning and use of protective devices is not given
or imparted in the operating instructions.
1.3 Approvals / Test marks
See chapter - Technical data.
1.4 Disclaimer / Loss of warranty
The fundamental requirement for safe operation and achievement of the specified
product properties and performance features is:
• compliance with the operating instructions.
• Non-compliance will lead to a loss of liability and the warranty for the device and
hoist.
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1.5 Symbols
The safety instructions in the manual are subdivided according to the severity of
the hazard and the likelihood of it occurring.
The measures described to avoid the hazards must be followed.
DANGER
This symbol warns of a direct danger to the health and life of people.
Disregarding these warnings will lead to severe injuries, possibly also death.
WARNING
This symbol warns of possibly dangerous situations for the health and life of people.
Disregarding these warnings can lead to severe injuries, possibly also death.
CAUTION
This symbol warns of possibly dangerous situations for the health of people.
Disregarding these warnings can lead to injuries.
ATTENTION
This symbol warns of property and environmental damage.
Specific symbols:
Warning of electrical voltage
Covers such as hoods and lids marked with this symbol may only be opened by "electrically skilled persons or competent persons".
Touching live parts can lead directly to death.
Warning of a suspended load
Any lingering of people under a suspended load is prohibited.
There is a danger of injury and death!
Warning of hand injuries
Danger of crush and cut injuries to the hands and fingers. The personal protective
equipment required for the specified activity should be worn to avoid injuries.
Requirements / Recommendation
Especially important information and tips for use of the product.
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1.6 Target group
ATTENTION
All work for installation and troubleshooting must be carried out by an electrically
skilled person, commissioning and maintenance by a competent person.
Electrically skilled person
An electrically skilled person is a person who on account of his technical training has
knowledge of and experience with electrical systems and, knowing the applicable
standards and regulations, is able to assess the work assigned to him and identify and
avert possible dangers.
The electrically skilled person must be familiar with operation of the product and
trained in this.
Definition of a competent person
A competent person is a person who on account of his vocational training, vocational
experience and recent vocational activity has the necessary technical knowledge to
test the equipment.
This person must be able to assess the safety of the system in dependence on the
case of use. Competent persons authorised to carry out certain maintenance work on
our products are the manufacturer's service technicians and trained technicians with
certificate.
1.7 Warranty claims
WARNING
Prerequisite for trouble-free operation of the device and fulfilment of warranty claims is
compliance with the operating instructions.
• Read the operating instructions before you work with the device.
• Always only use the device for its intended purpose. Pay attention to the contents in
the sections "Technical data", "Intended use" and "Misuse", particularly to the conditions for transport, storage, installation, commissioning and operation.
• These operating instructions only describe the basic functions of the device.
• Do not open the enclosure to make unauthorised changes to the device.
• Always switch off the power supply when carrying out maintenance work (e.g.
replacement of the device).
1.8 Misuse
WARNING
They device may only be used according to the instructions and information in this
manual.
1.9 Commissioning / Operation / Documentation
WARNING
The SLE 3 only achieves its safety function when it has been programmed accordingly.
The commissioning of a hoist must be documented. This documentation must also
contain the overload cut-off point. The signature of the qualified person and the operator
is needed after commissioning (section “Commissioning and testing”).
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1.10 Standards and directives
ATTENTION
Hoists in which SLE control equipment is installed are subject to the following directives
• Machinery Directive 2006/42/EC and
• EMC Directive 2014/30/EU
The SLE 3 was built in accordance with the following valid European standards and
regulations:
• IEC / EN 60204-32 – "Safety of machinery – Electrical equipment of machines – Part
32: Requirements for hoisting machines"
• EN 14492-2 – "Cranes – Power driven winches and hoists – Part 2: Power driven
hoists"
• ISO / EN 13849-1 – "Safety of machinery – Safety-related parts of control systems –
Part 1: General principles for design"
1.11 Intended use
ATTENTION
The SLE 3
• may only be used for control of a manually controlled single hoist from the manufac-
turer.
• is intended for industrial installations and may only be used in accordance with the
information in the technical documentation and the information on the rating plate.
• contains a safety-related overload cut-off that can, with due regard to the corre-
sponding standards specifically applicable to the machines / systems, be used for
the above-mentioned machines and systems in conjunction with a load sensor (see
chapter "Load sensor" for specification) up to category 2, PL d, according to
EN 13849-1.
• is a configurable device that only performs the safety functions after setting of the
safety-related parameter "Overload cut-off point"; this parameter may only be
changed by a competent person.
• is used in the control equipment as a central safety device for overload protection.
• is used in the hoist control equipment to actuate the motor.
• monitors the temperature of the motor by means of a thermistor (PTC).
ATTENTION
• The circuit diagrams and schematic circuit diagrams delivered with the hoist must be
observed and implemented in control equipment built by the customer.
• When integrating the control equipment delivered by the manufacturer in a general
control system or higher-level PLC, the product standards for hoists and the technical specifications regarding the functionality, signal sequence and timing of the device must be followed.
• The plant manufacturer is responsible for the overall system.
All faults and warnings that are indicated must be corrected immediately. If this is not
possible, the device, and therefore also the hoist it controls, must be taken out of service
until the fault has been corrected.
CAUTION
Any other use of the device or changes to the device itself, also during assembly
and installation, will lead to the loss of all warranty claims against the manufacturer.
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2 General safety instructions
WARNING
You must follow the safety instructions:
• National and international directives and regulations must be followed for assembly,
commissioning, operation and period tests, in particular the Machinery Directive
2006/42/EC, safety rules and country-specific safety regulations.
• The manufacturer and operator of the machine / system must coordinate and observe
all applicable safety regulations with the responsible authorities on their own responsibility.
• Detailed instructions for commissioning and tests are described in chapter 5.
2.1 Installation requirements
WARNING
For applications with the device, observe the following guidelines on electrical installation.
• Switch cabinet assembly, protection at least IP54.
• Implement wiring according to EN 60204-32.
• The load sensor cable must be shielded. Connect the shield to earth potential.
Observe the information in the chapter "Installation".
• The fuse may not exceed the value in the table "Technical data".
NOTICE
Sensor cables must be installed separately of main power cables, e.g. in spatially separate ducts or bundles.
2.1.1 Protective conductor
WARNING
With a missing protective conductor, an electric shock hazard exists. Material damage,
severe injuries or death can result.
➢ Connect the external protective earth system (PE) close to the terminals of the
phase conductor using a protective conductor for each mains connection.
Without a protective earth connection, malfunctions can arise during operation. The
protective earth connection facilitates protective equipotential bonding for protection
against electric shocks, as well as functional equipotential bonding for the avoidance of
electrical interference effects on electronic systems.
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2.2 Residual risks
WARNING
Unexpected start-up:
• Is prevented after the power supply is restored.
• The actuation control must also ensure this.
Physical injuries, e.g. crushing, severed limbs or even death.
The safety instructions are to be followed and applied!
WARNING
Direct contact with the power supply:
Deadly touch voltages can arise:
• from faulty wiring
• from not disconnecting the power supply when working on the control equipment
Physical injuries can remain, e.g. ventricular fibrillation, skin burns.
• The electrically skilled person must take this into consideration and take suitable
precautions.
WARNING
Failure of one of the downstream power elements
• Downstream power elements are not monitored by the SLE 3.
• Failure is to be prevented by the designer of the control equipment by suitable choice.
• In the event of failure the operator must have the power element replaced immediate-
ly by a competent person.
3 Product and functional description
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3 Product and functional description
3.1 Description
The SLE 3 is an electronic control unit for hoists. The device can be used to control polechanging or frequency-controlled drives. It contains a safety-related overload cut-off for
hoists in conjunction with a load sensor. It is a configurable system that only performs the
overload protection function after parameterisation and storage of the safety-relevant
parameter (overload cut-off point) in that the lifting movement is switched off safely.
The device also carries out other, non-safety related control and monitoring functions:
• Temperature monitoring for hoist and travel motors
• Display of system states via signalling relays
• Control of the lifting movements with motor management
• Counting of operating time
3.2 Load sensor
ATTENTION
The SLE 3 processes signals from passive DMS load sensors (see technical data).
The load sensor is a safety-relevant component. Due to this, only load sensors approved
by the manufacturer may be used. In the event of a defective load sensor, a sensor of
the same type must always be ordered and fitted. The load sensors are specified by the
manufacturer appropriately for the respective hoist and load and assigned internally.
Pay attention to the chapter "Device and sensor replacement" when replacing a load
sensor.
Fitting an unapproved load sensor will cancel the warranty and approval of the
device!
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