SIEMENS
Selection and ordering
HT-direct motors 1FW4 water-cooled
2/10
Siemens D 86.2 · 2007
2
■
Additional information
Packing weights and packing dimensions
Packing weights, tare
Packing dimension = Largest motor dimension + Supplement
Water-jacket cooling
To achieve a high power density, the motor housing is designed
with water-jacket cooling.
The cooling water flows through a channel that runs in a spiral in
the cooling jacket (from DE to NDE).
The cooling water inlet is at the drive end, on the LHS or RHS of
the motor housing as required. The cooling water outlet is at the
non-drive end, on the LHS or RHS of the motor housing as re-
quired (see dimension drawing). During transportation, the wa-
ter inlet and outlet holes are sealed.
Cooling water flowrate and water pressure:
The water quality must be taken into account:
•
The cooling water should be chemically neutral, it should be
clean, particles should have been filtered out and the follow-
ing values must not be exceeded:
ph value
6.0 to 8.0
Overall hardness
< 170 ppm
Chloride
< 40 ppm
Sulfate
< 50 ppm
Nitrate
< 10 ppm
Iron
<
0.2 ppm
Ammonium
< 10 ppm
Loose material
< 340 ppm
Conductance
< 500
μ
S/cm
•
Max. size of any particles carried
≤
0.1 mm
•
No saltwater (sea water)
•
If there is a danger of frost, then the appropriate anti-freeze
measures are required for operation, storage and transport.
For example, emptying and blowing-out with air, supplemen-
tary heating system for the cooling ducts.
•
Additives must be mixed with the cooling water in appropriate
quantities to protect against corrosion and the growth of
algae. The type and quantity of additive should be taken from
the manufacturer's specifications for these additives and the
particular ambient conditions.
Materials used in the cooling circuit
Only steel is used in the cooling circuit. The heatsink material is
not resistant to seawater. It is not permissible to directly cool the
motors using seawater.
Different cooling water inlet temperature and site altitude
Cooling water inlet temperature
(according to EN 60034-1 and IEC 60034-1)
The motors are designed for operation up to a cooling water inlet
temperature of 25 °C, but still maintaining all of the specified mo-
tor data.
If the HT-direct motors are operated with higher cooling water in-
let temperatures, the derating factors in the following table must
be taken into account.
Derating factors for cooling water inlet temperatures >25 °C
This results in a maximum torque of the motor of:
T
max
=
T
rated
· k
T
T
max
=Maximum torque in Nm
T
rated
=Rated torque in Nm
k
T
=Factor for different cooling water inlet temperature
If the maximum torque is no longer adequate for the drive, it
should be checked whether the motor with the next higher rated
torque fulfills the requirements.
Site altitude (according to EN 60034-1 and IEC 60034-1)
For site altitudes >1000 m above sea level, derating factors do
not have to be taken into account for water-cooled HT-direct mo-
tors. They may, however, affect the dimensioning of the converter.
Dynamic foundation loading
1)
Load at one motor long side (that is for two feet).
Type
1FW4 . . .
Land transport
on battens
Type of construction
IM B3
Sea transport in
wooden cases
Type of construction
IM B3
kg
kg
. . . 401/403/405/407
70
280
. . . 451/453/455
75
340
. . . 503/505
80
390
. . . 507/508
85
410
Dimensions
Supplements for
Land transport
on battens
Type of construction
IM B3
Sea transport in
wooden cases
Type of construction
IM B3
mm
mm
Length
+250
+250
Width
+200
+200
Height
+200
+500
Type
1FW4 . . .
Cooling water
flow rate
l/min
Maximum permissi-
ble water pressure
bar
. . . 401/403/405/407
30
5
. . . 451/453/455
50
5
. . . 503/505
65
5
. . . 507/508
80
5
Cooling water
inlet temperature up to
(ambient temperature up to)
25 °C
(40 °C)
30 °C
(45 °C)
35 °C
(50 °C)
40 °C
(55 °C)
45 °C
(60 °C)
Derating factor k
T
1.0
0.97
0.95
0.92
0.89
Type
F
A
1)
kN
F
B
1)
kN
1FW4401-1 . . .
53
22
1FW4403-1 . . .
62
29
1FW4405-1 . . .
72
35
1FW4407-1 . . .
85
44
1FW4451-1 . . .
91
51
1FW4453-1 . . .
111
68
1FW4455-1 . . .
136
90
1FW4503-1 . . .
125
69
1FW4505-1 . . .
148
88
1FW4507-1 . . .
176
110
1FW4508-1 . . .
205
132
(
F
)
A
F
B
(
F
)
B
F
A
G_D086_EN_00026
F
= Down
A
F
= Up
B