SIEMENS
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Siemens D 83.1 · 2016
1
Introduction
General technical specifications
Heating and ventilation
■
Overview
Anti-condensation heater
The motors can be equipped with anti-condensation heaters
to protect them against internal condensation. The standard
supply voltages are listed in the table below. Other supply
voltages are possible on request. Anti-condensation heaters
must not be switched on during operation.
Anti-condensation heaters for 1PS1 motors in the type of
protection "Non-sparking" are supplied with a self-limiter.
The heater output is listed in the adjacent table.
Alternatively, a voltage of between 5 and 10 % of the rated motor
voltage can be connected to terminals U1 and V1 (1-phase)
which will heat the stator winding sufficiently.
Cooling air flow and admissible back pressure
If motors are equipped with forced ventilation, pipes for infeed or
extraction of air, silencers, or similar, the values listed above
must be complied with depending on frame size.
They must also be used to calculate the static back pressure
of piping.
The values for static back pressure in Pa (1 Pascal =
0.102 mm WS) are maximum values that must not be exceeded
on self-ventilation and with the specified cooling air flow in pipes,
silencers, or similar.
Frame size
Supply voltage
Heater output per motor
1PS0, 1PS4, 1PS5
1PS1
V
W
W
LOHER CHEMSTAR motors
71 … 100
110 … 120
or
210 … 250
12
12
112 … 132
25
24
160 … 250
50
48
280 … 315 S/M
100
100
315 L … 355
200
200
LOHER VARIO motors
355 … 400
110 … 120
or
210 … 250
250
250
450
280
280
500
350
350
Frame size
3000 rpm
1500 rpm
1000 rpm
750 rpm
Cooling
air flow
Admissible
back pressure
Cooling
air flow
Admissible
back pressure
Cooling
air flow
Admissible
back pressure
Cooling
air flow
Admissible
back pressure
m
3
/s
Pa
m
3
/s
Pa
m
3
/s
Pa
m
3
/s
Pa
LOHER CHEMSTAR motors
71
0.03
1
80
0.04
2
0.02
1
90
0.06
40
0.03
10
0.02
6
100
0.08
50
0.04
12
0.03
8
112
0.10
50
0.05
12
0.03
8
0.02
132
0.15
70
0.1
18
0.07
10
0.05
5
160
0.25
90
0.15
30
0.1
15
0.08
8
180
0.35
100
0.2
40
0.15
20
0.1
10
200
0.4
120
0.3
50
0.2
25
0.15
12
225
0.5
120
0.45
50
0.3
30
0.23
15
250
0.6
140
0.55
60
0.33
35
0.28
20
280
0.8
160
0.7
80
0.45
45
0.33
25
315
1.0
160
0.9
80
0.6
45
0.45
25
355
1.5
160
1.5
80
1.0
45
0.8
25
LOHER VARIO motors
400
1.8
200
1.8
100
1.4
60
1.1
30
450
2.2
200
2
150
1.8
80
1.4
40
500
2.9
200
3
150
2.5
100
2.4
50
© Siemens AG 2016