SIEMENS
Description of options
SINAMICS GM150, SINAMICS SM150
Description of options
6/26
Siemens D 12 · 2012
6
■
Options
L55
Anti-condensation heating for the cabinet
The anti-condensation heating is recommended at low ambient
temperatures and high levels of humidity to prevent condensa-
tion. The number of 100 W switch cabinet unit heaters fitted de-
pends on the number of cabinet panels. The anti-condensation
heaters are controlled by means of a thermostat. Should the
external auxiliary infeed fail, this is monitored and reported by
the converter for safety reasons.
The voltage for the anti-condensation heating (110 V to 240 V
AC, on terminal block = GB–X1:) must be supplied externally.
L60
EMERGENCY STOP, Stop Category 1 for controlled stopping
(SINAMICS GM150)
For uncontrolled stopping, the standard converter is equipped
with an EMERGENCY-OFF function, which involves integrating
an external safety circuit and a positively opening mushroom
pushbutton at the front of the unit. When the mushroom pushbut-
ton is pressed, the line supply voltage is disconnected from the
converter through the circuit breaker and the motor then coasts
down.
As a supplement, the "EMERGENCY-STOP, Stop Category 1"
function is available (acc. to EN 60204-1/VDE 0113 T1
(IEC 60204-1)) with option
L60
. This includes stopping the drive
in an open-loop controlled fashion using a fast stop along a
down ramp that has to be parameterized by the user. The line
supply is then disconnected from the converter – the same as for
EMERGENCY-OFF – via the time-delayed contact of the safety
relay being used. The duration should be set at the safety relay
corresponding to the selected down ramp. The selection and the
feedback signal of the "EMERGENCY-STOP, Stop Category 1"
function are connected to the customer's terminal strip.
Among others, depending on the safety relay selected (single-
channel or two-channel) and the selected fault detection (e.g.
using cyclic tests) a maximum of Safety Category 3 according to
EN
954-1:1996 or EN
ISO
13849-1:2006 can be achieved for the
"EMERGENCY-STOP, Stop Category 1" function.
Notice:
The braking process can take considerable time even with an
EMERGENCY-STOP, Stop Category 1.
Among other things, this depends on the total moment of inertia
of the drive train. It may be necessary to use a Braking Module
(option
L72
).
In addition to option
L60
, the "Safe Torque Off (STO)" safety
function is available as option
K80
on request. The two options
are compared in the following table.
Terminal
Significance
= GB–X1:1A
L1 (110 ... 240 V)
= GB–X1:2A
N
Option
L60
EMERGENCY-STOP,
Stop Category 1 for
controlled stopping
Option
K80
Safe Torque Off (STO)
Functionality
When activated, the drive
is braked down to zero
speed and the energy
feed to the converter is
then interrupted by open-
ing the circuit breaker.
In addition to the software
intervention (OFF3), a
safety relay also ensures
that the circuit breaker
reliably opens.
When activated, the drive
is braked down to zero
speed and then the gating
commands of the power
semiconductors are safely
inhibited. The circuit
breaker remains closed
so that the converter is
still connected to the
power supply. The
option also fulfills the
"EMERGENCY-STOP,
Stop Category 1" function
as the rotating motion of
the connected motor is
brought to a standstill by
removing the drive
energy.
Assured safety
feature
The converter is discon-
nected from the power
after the selected delay
time of the safety relay
has expired
Driving torque is safely
switched off according
to safety category
Safety category
Up to category 3 acc.
to EN 9541:1996 or
EN ISO 138491:2006 can
be achieved, depending
on the circuit arrangement
of the safety relay and the
fault detection using
separate tests.
EN 9411: 1996,
Category 3
IEC 61508: 2000,
Parts 1 to 4, SIL2
Certification of
the option
No; however, the German
Statutory Industrial
Accident Insurance
Association has certified
the safety relay
Yes; by TÜV Süd [German
Technical Inspectorate]
User's view
The user is responsible
for configuring and
implementing the safety
function.
The complete safety
function is certified if
the specifications are
strictly met.
Availability
SINAMICS GM150
SINAMICS SM150,
SINAMICS GM150 on
request
© Siemens AG 2012