Electrical Installation

5

 

 

5.1Safety

The voltages carried by power supply cables, motor cables, connectors, and certain parts of the drive can cause serious electric shocks and even death

5.2The danger of electric shocks

Caution !

Risk of electrical shock, wait 3 minutes after switching off, for discharging the capacitors.

Disconnect SSD Drives plug-in units from mains before working on them. A period of three minutes must pass after switching off so that the internal capacitors can discharge completely. Until the discharge time is over, there can be dangerous voltages in the module !

Persons, which monitoring or carrying out electrical installation and maintenance must be adequately qualified and schooled in these activities.

5.3Danger areas

The use of variable speed drives of all kinds can invalidate the certification for dangerous areas (apparatus group and/or temperature class) of explosion-protected motors. Inspection and certification for the complete installation of servo motors and electronic components must be obtained.

5.4Grounding, safety grounding

The grounding impedance must meet the requirements of local industrial safety regulations and should be inspected and checked at appropriate and regular intervals

5.4.1Ground connections

It is recommended to attach a ground bus of high conductivity copper as near as possible to the servo-rack or regulator modules in order to minimize the length of the cable connections.

The recommended dimensions are:

Thickness: d = 5 to 6 mm

Length Width d

(m)(mm)

< 0,5

20

 

 

 

b

grounding bus-bar

0,5 < 1,0

40

 

 

 

 

1,0 < 1,5

50

 

 

 

 

 

 

l

Ways of raised discharge currents > DC 10mA resp. > AC 3,5mA the PE-Bolt of the drive has to be connected to PE using copper-cable minimum 10mm² !

5.5Short-circuit capability and discharge currents

Due to the working-principle of servo drives there may discharge currents to PE exceeding DC 10mA resp. AC 3,5mA.

Suitable for use on a circuit capable of delivery not more than 5000 RMS symmetrical amperes 505V maximum. (Note according to UL508C)

________________________________________________________________________________________________________________________________________________________________________________________________________________________

07-02-10-01-E-V0505.doc

Product Manaul Type: 637f

51