SIEMENS
SINAMICS S150 NEMA
Enclosed drive
2
Siemens D21.7
(Part 2) – 2015
2/11
2/12
Description of options
L70
High SCCR rating
Line Connection Modules have a short circuit current rating
(SCCR) per UL508A supplement SB. The standard SCCR as
well as the high SCCR (84 or 100 kA) available for large
ratings available with option L70 are shown in the technical
data on page 2/4.
L87
Insulation Monitor for ungrounded supplies
An insulation monitor must be used if the drive is operated
on an ungrounded power supply. This device monitors
the complete electrically connected circuit for insulation
(ground) faults. Two threshold values of resistance to ground
(between 1 k
c
and 10 M
c
) can be set (for alarm and fault).
Since the response philosophy to a ground fault may differ,
output relay contacts are not wired in the drive but available
for wiring to drive terminals or integration into a plant control
system. Additional terminals on the device are provided for
an output to an external display, and inputs for external reset
and test buttons.
Note: Only one insulation monitor can be used in an
electrically connected network.
L96
Input surge protective device
Type 1 Surge Protective Device per UL 1449 Third Edition,
wired to load side of incoming circuit breaker.
M06
Base (plinth) 4” (100mm) high
The 4” enclosure base allows larger bending radii for cables
(cable entry from below) and routing them within the base.
L55
Enclosure space heater
Space heaters are recommended at low ambient tempera-
tures and high levels of humidity to prevent condensation.
One 90 W heater is provided for each cabinet >32” (800 mm)
width. For cabinets exceeding this width, two heaters will be
installed. This option requires an external power source.
L61, L62, L64, L65
Braking units
Braking units may be required for drives in which motors
might operate in generator mode and the excess energy
cannot be absorbed by other loads or regenerated back
into the supply system, or braking is required if the supply
system fails.
The braking unit comprises two components:
• A Braking Module that can be installed in the air discharge
of chassis format power units
• A braking resistor to be mounted externally (IP20 degree
of protection).
The braking unit functions as an autonomous unit, and does
not require an external power supply. During the braking
process, the kinetic energy is converted into heat in the
externally mounted braking resistor.
A cable length of max. 328 ft. (100 m) is permissible
between the Braking Module and the braking resistor. This
allows the braking resistor to be mounted externally so that
heat losses can be dissipated outside the drive enclosure. The
braking resistor is directly connected to the Braking Module.
For SINAMICS S150, the following braking modules are
available, depending on the frame size:
P
DB
: Rated power (continuous braking power)
P
20
: 20 s power referred to a braking interval of 90 s
P
15
: 15 s power referred to a braking interval of 90 s
For additional information, please refer to the
description of Braking Modules in Section 3.
Option
For frame
size
Braking Module
Rated
power P
DB
kW
Rated
power P
DB
kW
Rated
power P
DB
kW
380 … 480 V 3ph. AC (& 660… 690 V 3ph. AC)
L61
FX
25
100
125
L62
GX, HX, JX
50
200
250
500 … 600 V 3ph. AC
L64
FX
25
100
125
L65
GX, HX, JX
50
200
250
15
P
20
P
40
P
DB
P
DB
P
15
P
20
P
40
P
t
=
= 5x
= Powerwhich is permissible every 90 s for 15 s
= 4 x
= Powerwhich is permissible every 90 s for 20 s
= 2 x
= Powerwhich is permissible every 90 s for 40 s
1.00
10
20
30
40
50
60
70
80
90
100
0.75
0.50
0.25
s
1.50
1.25
DB
P
/
P
DB
P
15
DB
P
DB
P
Rated power
G_D211_EN_00013a
Load diagram for Braking Modules and braking resistors
Additional notes about possible duty cycles of the braking
resistors and other engineering notes are included in the
SINAMICS Low Voltage Engineering Manual.