Skf KOM6 User Manual

Read this manual before installing, operating
or maintaining this actuator. Failure to follow
safety precautions and instructions could
cause actuator failure and result in serious
injury, death or property damage.

Installation, operation

and maintenance manual

Magnetic Elektromotoren AG
Oristalstrasse 97
CH-4410 Liestal
Phone [phone]
Fax [phone]
e-mail [e-mail]

531e2920_0701

Technical instructions

KOM6
First Failure Safe Processor
Control Unit

Contents

1. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

1.1 Using the Technical Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

1.2 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2 Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

2.1 Correct usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

2.2 Ambient conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

3 Installation and startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

3.1 Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

3.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

3.3 Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

4Instructions for use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

4.1 Operating the handswitch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

4.2 Operating the SPP6 locking device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

5 Maintenance and cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

5.1 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

5.2 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

5.3 Accumulators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

5.4 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

5.5 Disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

5.6 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

5.7 Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

5.8 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Reference Standards

DIN EN 60601-1
DIN EN 60601-1-4 Erstfehlersicherheit
DIN EN 60601-2-38
Certified of TÜV Rheinland

Technical instructions Control unit KOM6

531e2920_0701 Magnetic – The Linear Drives Company™ page 2/11

1 General

1.1 Using the Technical Instructions

The Technical Instructions are meant for designers using the KOM6 in their products
and for fitters working with the KOM6. The Technical Instructions contain all relevant
information on this Magnetic product. We reserve the right to make changes which
are in the interest of technical progress.

Please read the Technical Instructions carefully and, above all, pay careful attention to
the Safety Instructions.

The Technical Instructions can be used for drawing up the User Manual for the end
product.

1.2 Explanation of symbols

The following symbols are used in these Technical Instructions to highlight possible
dangers and important notes:

2Functions

The main processor of the KOM6 controls and regulates the motors to which it is con­nected. The functions incorporated in the control program are initiated via a
handswitch (EHE6), footswitch (STH), locking device (SPP6) or other options (see

3.1Installation and startup

The functions, connector assignments and options for a control unit are configured at
the factory in accordance with the system manufacturer's requirements and cannot
be changed subsequently.

The separate, customer-specific documentation must be enclosed with these Techni­cal Instructions.

An integral current cut-off protects the motors against overload.

Control unit (Protection class I)

The mains voltage is converted to a 24 V low voltage by a thermally-protected main
transformer. The integral rectifier converts this voltage into direct current.

Economy circuit (standby)

When the actuators are idle, the auxiliary transformer only maintains the control volt­age. The main transformer is automatically shut down, thus relieving it of any thermal
load.

First failure safety

To ensure first failure safety, the components which are critical to safety are equipped
with monitoring and supplementary elements. The KOM6 is therefore also equipped
with a microprocessor, motor relays, test circuits and confirmation facility when mak­ing inputs.

Toroidal mains transformer (enhanced power)

The toroidal mains transformer is required for enhanced power, e.g. if using more than
two actuators with memory functions.

The toroidal mains transformer must not be used with an internal or external accumu­lator.

Accumulator

The integrated accumulator is automatically recharged when the control unit is con­nected to the mains power supply.

This symbol is used to indicate operations and
states which could endanger life and limb or
property.

Follow the instructions precisely!!

This symbol provides the user with useful in­formation.

Der Ringkerntrafo darf nicht mit interner
bzw. externer Akkueinheit betrieben werden.

The earth connection of the control unit is
provided solely as a functional earth for
checking the insulation resistance!

Technical instructions Control unit KOM6

531e2920_0701 Magnetic – The Linear Drives Company™ page 3/11

2.1 Correct usage

The KOM6 has been designed specifically for adjusting beds, chairs and couches in
medical and care applications.

Areas of application include

1. Memory and dependency control units for beds, chairs, couches etc. in which
mechanical collision cannot occur. Thus, the control unit is not required to mon­itor the system to detect prohibited positions. These applications are suitable for
persons who are not sick and who are not exposed to any hazard due to unsuit­able positions.

2. Memory and dependency control units for beds, chairs, couches, etc. where an
external limit switch signals a possible mechanical collision and signals this to
the control unit via the fifth channel in order that the actuators can be switched
off.

If required, Magnetic AG, Liestal, can provide assistance for constructing your prod­ucts using Magnetic components.

2.2 Ambient conditions

Operation:



Temperature 10°C to 40°C

 Humidity max. 85%

Storage / transport:



Temperature -20°C to 40°C

 Humidity max. 95%

Duty cycle



Duty cycle 10%; 1min ON / 9min OFF for exit current 5,5 A.

With enhanced power:

 Duty cycle 10%; 1min ON / 9min OFF for exit current 9 A.
 KB 3min for exit current 12 A.

These devices must not be operated in poten­tially explosive atmospheres.

The failure of the control unit due to a power
outage or electronic fault must not be allowed
to endanger patients, the operator or service
staff.

Avoid putting patients at risk by using the
memory function.The transducer (encoder) for
the actuators is not first failure safe. Pulses
may be lost.

The first failure safety of the entire system
(e.g. beds, chairs, couches, etc.) is not ensured
only by use of the KOM6. The
entire system must be safeguarded by means
of a separate first failure safe solution.

The entire construction must comply with
DIN 60601-1 and DIN 60602-38.