2 Engineering
2.9 Three-phase motor
66
DA1 Variable Frequency Drives
08/18 MN04020005Z-EN
www.eaton.com
Figure 38: Example: Parallel connection of several motors to one variable frequency drive
a
Motor choke (DX-LM3…) or sine
wave filter (DX-SIN3…)
Q11, Q12, Q13, …: Motor contactors
(utilization category AC-3)
F1, F2, F3, …: Motor contactor relay
(overload relay or PKE)
Q11
F1
M1
Q12
F2
M2
Q13
F3
M3
U1 V1 W1
U1 V1 W1
U1 V1 W1
M
3
˜
M
3
˜
M
3
˜
①