SIEMENS
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Siemens MD 50.1 · 2015
Motor options
Electrical design
Windings and insulation
11
■
DURIGNIT IR 2000 insulation
The DURIGNIT IR 2000 insulating system consists of high-qual-
ity enamel wires and insulating sheet materials in conjunction
with temperature-resistant resin impregnation.
This ensures that these motors will have a high mechanical and
electrical strength, high service value, and a long service life.
The insulating system protects the winding to a large degree
against aggressive gases, vapors, dust, oil, and increased air
humidity. It can withstand the usual vibration stressing.
Inverter-fed operation up to 500 V +10 % line voltage
The standard insulation of SIMOGEAR geared motors is
designed such that inverter-fed operation is possible at line volt-
ages of 400 V, 460 V and 500 V.
Depending on the line voltage, insulation systems with different
insulation strengths are used as the standard insulation.
When SIMOGEAR geared motors are operated on inverters with
step-up converter (ALM, AFE), the data in the table below must
be observed.
Compliance with the following limit values for permissible
voltage stress is essential (voltage values are peak values).
During installation, the EMC guidelines must be taken into
account.
■
Temperature class
All motors are designed for temperature class 155 (F). They are
utilized to temperature class 130 (B).
The 4-pole motors can be optionally implemented for tempera-
ture class 180 (H). The winding is utilized to temperature
class 155 (F).
■
Increased air humidity/temperature with 30 to 60 g water
per m³ of air
The motors in the standard range are designed for up to
30 g water per m
3
. A design for increased air humidity in the
range between 30 and 60 g water per m
3
air as a function of
the temperature is possible, as shown in the following table.
Module type
Line voltage
400 V (+10 %)
460 V (+10 %)
500 V (+10 %)
Inverters without regenerative feedback capability with / without
brake chopper
BLM (Basic Line Module)
Standard insulation
Inverters with regenerative feedback capability
SLM (Smart Line Module)
Standard insulation
Step-up converter
ALM (Active Line Module)
AFE (Active Front End)
Standard
insulation
On request
On request
Line voltage
400 V (+10 %)
460 V (+10 %)
500 V (+10 %)
Û
phase-to-phase
≤
1 500 V
≤
1 500 V
≤
1 600 V
Û
phase-to-ground
≤
1 100 V
≤
1 100 V
≤
1 400 V
Voltage rise times t
s
> 0.1 μs
> 0.1 μs
> 0.1 μs
Order code:
Temperature class 180 (H)
1)
M08
1)
Not possible for worm geared motors S
Order code:
Increased air humidity/temperature
with 30 to 60 g water per m³ of air
1)
N54
1)
Not possible for worm geared motors S
Relative
humidity
Temperature
+20 °C
+30 °C
+40 °C
+50 °C
+60 °C
+70 °C
+80 °C
10 %
2
3
5
8
13
20
29
15 %
3
5
8
12
19
30
44
20 %
3
6
10
17
26
39
58
25 %
4
8
13
21
32
49
30 %
5
9
15
25
39
59
35 %
6
11
18
29
45
40 %
7
12
20
33
52
45 %
8
14
23
38
58
50 %
9
15
26
41
55 %
10
17
28
46
60 %
10
19
31
50
65 %
11
20
33
54
70 %
12
21
36
58
75 %
13
23
38
80 %
14
24
41
85 %
15
26
43
90 %
16
27
46
95 %
16
29
49
100 %
17
30
51
© Siemens AG 2015