12
Project planning
Project planning procedure
Operating Instructions – Compact Extra-Low Voltage Drives
82
12.3
Project planning procedure
The following flow diagram illustrates the project planning procedure:
Load profile
M = f(t)
→ M
amax
n =
f(t) → n
G_max
Select drive according to table
Check drive /
application
Contact
SEW-EURODRIVE
M
=
f(t)
≤
M
MotMax
at
all
operating
points
S1 duty at
ambient temperature
> 25 °C?
Yes
M
eff
≤
M
N
n
eff
≤
n
N
Yes
Check the braking resistance
using
the braking energy
Thermal check
Electromechanical check
Operating points
M
eff
=
Yes
No
Yes
Check
the braking resistance
using the braking energy and
braking operations
per hour
End
No
P
brake
=
1
2 x
M
gen
x
n
gen
9.55
W
=
P
brake
x
t
gen
=
n
1
1.5
x
t
1
+
...
+
n
n
1.5
x
t
n
1.5
n
eff
n
MotMax
≤
n
no-load operation
t
1
+
...
+
t
n
t
1
+
...
+
t
n
t
1
x
M
1
2
+
...
+
t
n
x
M
n
2
18014427117601291
26718014/EN – 11/2020
