REXRTOHIndraDrive Control Sections CSB02, CSE02, CSH02, CDB02

Until the integrated monitoring functions become effective, it must be as‐

sumed in any case that faulty drive movements will occur. The extent of faulty

drive movements depends upon the type of control and the state of opera‐

tion.

Dangerous movements! Danger to life, risk of injury, serious injury or property

damage!

A risk assessment must be prepared for the installation or machine, with its

specific conditions, in which the components of the electric drive and control

system are installed.

As a result of the risk assessment, the user must provide for monitoring func‐

tions and higher-level measures on the installation side for personal safety.

The safety regulations applicable to the installation or machine must be taken

into consideration. Unintended machine movements or other malfunctions

are possible if safety devices are disabled, bypassed or not activated.

To avoid accidents, injury and/or property damage:

● Keep free and clear of the machine’s range of motion and moving ma‐

chine parts. Prevent personnel from accidentally entering the machine’s

range of motion by using, for example:

– Safety fences

– Safety guards

– Protective coverings

– Light barriers

● Make sure the safety fences and protective coverings are strong enough

to resist maximum possible kinetic energy.

● Mount emergency stopping switches in the immediate reach of the oper‐

ator. Before commissioning, verify that the emergency stopping equip‐

ment works. Do not operate the machine if the emergency stopping

switch is not working.

● Prevent unintended start-up. Isolate the drive power connection by

means of OFF switches/OFF buttons or use a safe starting lockout.

● Make sure that the drives are brought to safe standstill before accessing

or entering the danger zone.

● Additionally secure vertical axes against falling or dropping after switch‐

ing off the motor power by, for example,

– mechanically securing the vertical axes,

– adding an external braking/arrester/clamping mechanism or

– ensuring sufficient counterbalancing of the vertical axes.

● The standard equipment motor holding brake or an external holding

brake controlled by the drive controller is not sufficient to guarantee per‐

sonal safety!

● Disconnect electrical power to the components of the electric drive and

control system using the master switch and secure them from reconnec‐

tion ("lock out") for:

– Maintenance and repair work

– Cleaning of equipment

– Long periods of discontinued equipment use

● Prevent the operation of high-frequency, remote control and radio equip‐

ment near components of the electric drive and control system and their

supply leads. If the use of these devices cannot be avoided, check the

machine or installation, at initial commissioning of the electric drive and

control system, for possible malfunctions when operating such high-fre‐

quency, remote control and radio equipment in its possible positions of

normal use. It might possibly be necessary to perform a special electro‐

magnetic compatibility (EMC) test.

3.3.4 Protection against electromagnetic and magnetic fields during opera‐

tion and mounting

Electromagnetic and magnetic fields!

Hazards for persons with active medical implants or passive metallic im‐

plants, as well as for pregnant women.

● Persons with active medical implants (e.g. heart pacemakers), passive

metallic implants (e.g. hip implants) and pregnant women might possibly

risk hazards by electromagnetic or magnetic fields in the immediate vi‐

cinity of components of the electric drive and control system and the as‐

sociated current-carrying conductors.

Entering the following areas can cause danger to these persons:

– Areas in which components of the electric drive and control system

and the associated current-carrying conductors are mounted, com‐

missioned and operated.

– Areas in which parts of motors with permanent magnets are stored,

repaired or mounted.

● Before entering these areas, the above-mentioned persons should seek

advice from their physician.

● Observe the occupational safety and health regulations applicable at the

site of operation, for installations equipped with components of the elec‐

DOK-INDRV*-CXX02******-PR03-EN-P Bosch Rexroth AG 21/143

IndraDrive Control Sections CSB02, CSE02, CSH02, CDB02

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Protection against contact with hot parts

Hot surfaces of components of the electric drive and control system. Risk of

burns!

● Do not touch hot surfaces of, for example, braking resistors, heat sinks,

supply units and drive controllers, motors, windings and laminated

cores!

● According to the operating conditions, temperatures of the surfaces can

be higher than 60 °C (140 °F) during or after operation.

● Before touching motors after having switched them off, let them cool

down for a sufficient period of time. Cooling down can require up to 140

minutes! The time required for cooling down is approximately five times

the thermal time constant specified in the technical data.

● After switching chokes, supply units and drive controllers off, wait 15 mi‐

nutes to allow them to cool down before touching them.

● Wear safety gloves or do not work at hot surfaces.

● For certain applications, and in accordance with the respective safety