SEW-Eurodrive Movigear Performance MGF**-DFC-C Series, Operating Instructions Manual

Page: 304 / 416

10
Project planning
DynaStop® – The electrodynamic deceleration function
Operating Instructions – MOVIGEAR
®
performance
304
10.4 DynaStop
®
– The electrodynamic deceleration function
DynaStop® – The electrodyna mic deceleratio n function
10.4.1 Functional description
INFORMATION
For a functional description of DynaStop
®
refer to chapter "Operation" > "DynaStop
®
"
10.4.2 Checking whether DynaStop
®
can be used
Requirement:
To use DynaStop
®
, the retrodriving torque M
ar
must be smaller than the maximum de-
celeration torque M
DSP
:
M M
ar DSP
<
Calculating the retrodriving torque:
Known values of the application:
F
ex
= 800 N
F
R
= 445 N
M F F
D
M N N
m
Nm
ar ex R
ar
= − × ×
= − × × =
( )
( ) .
.
η
2
800 445 0 7
0 14
2
17
Result:
In the application, an MGF2 unit with i
tot
= 37.24 is used.
The maximum deceleration torque M
DSP
143 Nm at n
DSP
3.08 min
−1
for this design can
be found in chapter "Technical data and dimension drawings" > "Deceleration torques
DynaStop
®
":
The retrodriving torque M
ar
is smaller than the maximum deceleration torque. This
means DynaStop
®
can be used:
M M
Nm Nm
ar DSP
<
<
17 143
Checking the application velocity:
n
n
M
M
n
Nm
Nm
v n D
A
DSP
DSP
ar
A
a
= ×
= × =
= × × =
3 08
1
143
17 0 37
1
0 37
.
min
.
min
.
π
1 1
0 14 0 16
min
. .
min
× × =
π
m
25295191435
Result:
Due to the external force, the velocity for the application example is 0.16 m/min.
25945475/EN – 04/2019