SIEMENS
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Siemens D 35 · 2017
■
Options
(continued)
5
SINAMICS G120P Cabinet, converter cabinet units
SINAMICS G120P Cabinet, 75 kW to 630 kW
SINAMICS G120P Cabinet
L60
EMERGENCY STOP Category 1, 24 V DC
EMERGENCY STOP Category 1 for controlled stopping in
accordance with EN 60204-1.
The function stops the drive using a fast stop along a down ramp
that is parameterized by the user. The power feed to the con-
verter is then interrupted as described for EMERGENCY OFF
Category 0.
Notice:
If there is no 230 V AC power supply in the customer installation,
it is essential to select option
K74
in order to ensure proper
functioning of option
L60
.
In order to maintain the specified stopping times, it may be
necessary to use a braking unit (option
L62
).
Notice:
Option
L60
always requires the electrical separation from the
line supply, i.e. option
L13
.
L62
Braking unit
A braking unit must be installed for systems with large moments
of inertia that require controlled braking or shutdown of the drive.
When braking the motor and the load, excess energy is fed back
into the converter. As a result, the DC link voltage rises. The con-
verter transfers the excess energy to the externally mounted
braking resistor.
A braking unit is also necessary when systems must come
to a standstill in a specified time, as is normally required for
EMERGENCY STOP Category 1 (option
L60
) or if direction
reversal can occur when restarting following an intermediate
standstill.
The braking unit comprises two functional elements:
•
A dedicated braking module
•
A braking resistor to be mounted externally (IP20 degree of
protection)
The braking energy is converted into heat in the braking resistor
that must be mounted externally.
A max. cable length of 10 m (32.8 ft) is permissible between the
Braking Module and the braking resistor for frame sizes F and
100 m (328 ft) for frame sizes GX to JX. This allows the braking
resistor to be mounted externally so that heat losses can be dis-
sipated outside the converter enclosure.
Characteristic curves
Load diagram for Braking Module and braking resistor
The following braking units are available for SINAMICS G120P
Cabinet:
P
DB
: Rated power (continuous braking power).
P
20
: 20 s power referred to a braking interval of 90 s.
Note:
For converter cabinet units with a rated power from 160 kW,
for space reasons, the option
L62
is not immediately available
when output options
L07
or
L08
are used. This combination is
only available as a special version on request.
L83
Thermistor motor protection unit (alarm)
Thermistor motor protection device for single-channel PTC tem-
perature sensors (PTC resistors, type A) for alarm.
The thermistor motor protection unit is supplied with power and
evaluated internally in the converter. There is galvanic isolation
between the supply voltage and the temperature measuring cir-
cuit.
Note:
The Control Unit has a monitoring channel to monitor the motor
temperature as standard. This single-channel input supports
PTC, KTY84, Pt1000 and also thermoclick sensors. The warning
and fault thresholds are parameterizable. The temperature val-
ues acquired are automatically used for high-precision motor
control.
Caution:
If there is no 230 V AC power supply in the customer installation,
it is essential to select option
K74
in order to ensure proper func-
tioning of option
L83
.
Terminal
–X120:
Significance
3
Looping in of the EMERGENCY STOP button from the
customer installation; remove jumper 3-6!
6
Looping in of the EMERGENCY STOP button from the
customer installation; remove jumper 3-6!
7
"On" for manual start; remove jumper 15-16!
8
"On" for manual start; remove jumper 15-16!
Order code
SINAMICS G120P
Cabinet converter
cabinet units
Braking Module
Braking
resistor
Option
Rated power
P
DB
P
20
R
B
kW
kW
kW
Ω
380 ... 480 V
3 AC
L62
75 ... 90
3.85
15.4
7.1 ±7 %
110 ... 132
5.5
22
5 ±7 %
160 ... 560
50
200
3.1 ±8 %
20
P
20
P
DB
P
DB
G_D011_EN_00401
P
DB
P
/
P
DB
0.25
0
0.50
0.75
1.00
= 4 x
= power permissible every 90s for 20s
= continuous braking power
P
s 100110
90
80
70
60
50
40
30
20
10
t
© Siemens AG 2017