Calculation Of The Required Infeed; Mounting; Safety Instructions For Mounting - Siemens SIMOTICS-T 1FW68 Engineering Manual

Configuring

5.2 Mounting

5.1.12

Calculation of the required infeed

Dimensioning the Active Line Module
Use the drive's power balance to dimension the Active Line Module.
The first important quantity to know is the mechanical power P
motor shaft. Based on this shaft output, the electrical active power P
supply system can be determined by adding the power loss of the motor P
loss of the Motor Module P
mechanical power P
P
Line
The active power to be drawn from the power system depends on the line voltage U
line current I
P
Line
This is used to calculate the required line current I
I
Line
If the Active Line Module is operated according to the factory setting, i.e. with a line-side
power factor of cosφ
formula can be simplified to
I
Line
The Active Line Module must now be selected such that the permissible line current of the
Active Line Module is higher or equal to the required value I
5.2 Mounting
5.2.1

Safety instructions for mounting

Risk of death and crushing as a result of permanent magnet fields
Severe injury and material damage can result if you do not carefully take into consideration
the safety instructions relating to permanent magnet fields of rotor segments.
• Observe the information in Chapter Danger from strong magnetic fields (Page 31).
92
:
mech
= P + P + P
mech V Mot V MoMo
and the line-side power factor cosφ
Line
= √3 • U • I • cosφ
Line Line
= P / (√3 • U • cosφ
Line Line
= 1, so that it draws only pure active power from the supply, then the
Line
= P / (√3 • U ).
Line Line
WARNING
and the power loss of the Active Line Module P
V MoMo
+ P .
V AI
.
Line
).
Line
Configuration Manual, 04/2017, 6SN1197-0AE02-0BP1
to be produced on the
mech
to be drawn from the
Line
as defined by the relation
Line
of the Active Line Module as follows:
Line
.
Line
1FW68 radial segment motors
, the power
V Mot
to the
V AI
, the
Line