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Configuring
4/2
Siemens D 86.2 · 2007
4
■
Configuration
HT-direct motors can only be operated in combination with
SINAMICS converters. The drive system can be completely con-
figured using the “SINAMICS MICROMASTER SIZER” configura-
tion tool.
These motors cannot be used as line-fed machines (no self-
starting capability).
Guideline for drive selection
These “guideline for drive selection” guide you step-by-step to
the required HT-direct motor and SINAMICS converter:
Step 1
Technical requirements for the motor (example)
Further notes and alternatives
Determine the required
product profile
Required is, for example:
Torque in continuous operation
(
T
cont.
)
16000 Nm
T
=
P
mech
[kW] x 9550 /
n
[rpm] =
1282 x 9550 / 765
T
= 16000 Nm
Short-term overload torque
(
T
overload
)
18000 Nm
T
overload
/
T
cont.
< 1.5:
Rated torque =
T
cont.
T
overload
/
T
cont.
> 1.5:
Rated torque =
T
overload
/1.5
Higher overloads on request.
Duty type
S1
When, instead of S1 duty, duty cycles must be
taken into account:
Average torque is calculated from the root of the
square of the required torques multiplied by the
time divided by the total time:
e.g. 140%, 10 seconds,
then 80%, 30 seconds,
results in an average 98.5% of the rated torque:
Utilization
Temperature class 155
(previously temperature
class F)
In case of use according to temperature class
130 (previously temperature class B), the motor
must be designed for a torque 20% higher:
e.g.
T
cont.
= 1.2 x 16000 = 19200 Nm
Rated voltage
690 V
Alternatively 400 V or 460 V
Max. speed in
continuous operation
765 rpm
Rated speed acc. to catalog 800 rpm,
max. perm. speed 20% higher
(800 x 1.2 = 960 rpm)
For speeds below 170 rpm the option L1Y must
be selected (anormal stator winding).
Cooling medium
Water with max. inlet
temperature 25 °C
Higher cooling-water inlet temperatures must be
accounted for with derating factors when the
rated torque is determined:
e.g. for 35 °C: 16000/0.95 = 16840 Nm
For derating factors, see Page 2/10.
Type of construction
IM B3
Step 2
Environmental requirements for the motor
Further notes and alternatives
Determine the installation
conditions
Ambient temperature
–20 to +40 °C
At ambient temperatures up to +40 °C, derating
factors are not required for water-cooled motors.
At higher ambient temperatures in combination
with cooling-water inlet temperatures above
25 °C, the derating factors on Page 2/10 are
applicable.
For air-cooled motors, derating factors must be
used in accordance to Page 3/12.
Site altitude
<
1000 m
For water-cooled motors, the site altitude does
not have to be taken into account for the derating
factor.
For site altitudes > 1000 m above sea level, the
conditions of the converter must however be
taken into account.
For air-cooled motors, derating factors must be
used in accordance to Page 3/12.
Step 3
Selecting the motor
Further notes and alternatives
Determining the
motor Order No.
1FW4453-1HF70-1AA0
See “Selection and ordering data” (Section 2).
Due to the current-carrying capability of the motor
terminal box (max. 1230 A), the motor is designed
with two terminal boxes and two galvanically iso-
lated winding systems.
1 40
,
2
10
0 80
2
,
30
×
+
×
(
)
40
⁄
0 985
,
=
➠
➠➠