Siemens 1FW6092-2PC15-6AB3, Configuration Manual

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Configuration
5.2 Configuring workflow
1FW6 High Speed built-in torque motors
92
Configuration Manual, 01/2020, 6SN1197-0AE03-0BP3
Example
A motor should be operated with maximum current from the cold state.
● I
MAX
= 47 A, I
N
= 26 A; this results in ν = 3.268
● t
TH
= 180 s
The motor can be operated for a maximum of 66 s at maximum current.
Intermittent duty S3
With intermittent duty S3, periods of load time Δ t
B
with constant current alternate with
periods of downtime Δ t
S
with no current feed. The motor heats up during the load time and
then cools down again while at standstill. After a sufficient number of duty cycles with cycle
duration Δ t
Spiel
= Δ t
B
+ Δ t
S
, the temperature characteristic oscillates between a constant
maximum value T
o
and a constant minimum value T
u
; see figure below.
Figure 5-1 Current and temperature characteristic for intermittent duty S3