Table of Contents
Advertisement
5.4.2
Machine frame mounting feet (special design)
For terminal boxes mounted at the NDE (option H08), dimension C can deviate from IS1231.
For motors with double or triple holes at the NDE, maintain the foot mounting dimensions as specified in standard IS1231.
6
Electrical connection
Observe the following when carrying out any work on the machine:
● Comply with the general safety instructions (Page 1)
● Comply with the applicable national and sector-specific regulations.
● When using the machine within the European Union, comply with the specifications laid down in EN 50110-1 regarding
safe operation of electrical equipment.
6.1
Connecting the machine
DANGER
Hazardous voltages
Death, injury or material damage can occur. Note the following safety information before connecting-up the
machine:
Only qualified and trained personnel should carry out work on the machine while it is stationary.
•
Disconnect the machine from the power supply and take measures to prevent it being reconnected. This
•
also applies to auxiliary circuits.
Check that the machine really is in a no-voltage condition.
•
Establish a safe protective conductor connection before starting any work.
•
If the incoming power supply system displays any deviations from the rated values in terms of voltage,
•
frequency, curve form or symmetry, such deviations will increase the temperature and influence
electromagnetic compatibility.
Operating the machine on a line supply system with a non-grounded neutral point is only permitted over
•
short time intervals that occur rarely, e.g. the time leading to a fault being eliminated (ground fault of a
cable, EN 60034-1).
6.1.1
Direction of rotation
The standard motors are suitable for clockwise and counter-clockwise rotation.
For defined directions of rotation (direction of rotation arrow), appropriately connect the line power cables.
● If you connect the line cables with phase sequence L1, L2, L3 at U, V, W or according to NEMA at T
machine rotates in the clockwise direction.
● If you interchange two connections, e.g. L1, L2, L3 at V, U, W or according to NEMA at T
rotates counter-clockwise.
Clockwise rotation
Counter-clockwise
rotation
Direction of rotation of the motor when looking at DE
18
According to IEC
U V W
V U W
T
T
, then the
1
2
3
T
T
, then the machine
2
1
3
According to NEMA
T
T
T
1
2
3
T
T
T
2
1
3
A5E36065207, 04/2018
1LE7
Advertisement
Table of Contents
