Operating Instructions

SED2 VFD Startup, Operation, and Maintenance Manual
42 Siemens Building Technologies, Inc.
Connection of Multiple
Motors
The SED2 can control several motors
in parallel as long as all of the motors
have the same power rating. When
multiple motors connect to the SED2
in parallel, the motors cannot operate
individually.
NOTES:
1. When determining the required
power, take into account the total
current from all the motors (or the
total of all ratings).
2. The sum of all individual motor
cable lengths must not exceed
the maximum motor cable length.
SED2
M
1
M
2
M
3
M
4
M
n
5192Z10
∑ I
M
1
..M
n
≤ I
SED2, max.
∑ P
M
1
..M
n
≤ P
SED2, max.
Figure 27. SED2
Connection to Multiple
Motors.