Siemens SINAMICS SM150, Operating And Installation Instructions

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To supply the anti-condensation heating for the motor or the working machine, the drive
must be properly connected to terminals (L1) to (L3).
The supply voltage of the anti-condensation heating must match the input voltage. The
voltage is supplied at terminals X ... Depending on which option (option N35 to N38) is
chosen, different circuit-breakers are available with the assigned motor circuit-breaker.
Set the motor circuit-breaker so that it protects the anti-condensation heating. Protect the
auxiliary supply for the anti-condensation heating with fuses on the system side. The
circuit-breaker is activated by means of the "Auxiliary equipment OFF" command from the
drive controller.
17 Option L60
EMERGENCY
OFF category 1
(24 VDC)
The drive is fitted as standard with a category 0 STOP function and an
EMERGENCY OFF button in the control cabinet door. With option L60,
EMERGENCY OFF category 1 (decelerate at current limit) is defaulted.
If the drive is to be integrated in a central EMERGENCY STOP se‐
quence in the system-side protection concept, floating contacts are
available on terminal strip X...
Terminal X... allows other EMERGENCY OFF buttons in the system to
be looped in.
Signal connections
18 Drive operation by higher-level controller / control room.
Connect the control cables in accordance with the interface assignment and apply the
shield. Route the digital and analog signals with separate cables to minimize interference.
Ensure that the required distance from the power cables is maintained.
Note that when the analog inputs on the customer terminal strip are used as current or
voltage inputs, the isolation amplifiers ( ... ) must be set accordingly.
Connecting protection and monitoring devices
Depending on the converter transformer version (dry or oil filled), integrate the transformer
protection and monitoring devices in the alarm and shutdown train of the drive. A range
of digital inputs are available for this purpose on the customer terminal strip.
19 Options L80 to
L82
Thermistor mo‐
tor protection
unit (alarm/
shutdown)
The PTC thermistor sensors (type A PTC resistors) must be connected
to the thermistor motor protection unit ‑F at terminals T1 and T2 for
alarm/shutdown purposes.
21 Option L91
PT100 evalua‐
tion unit
The resistor thermometers must be connected to evaluation unit ‑A140
for the PT100 evaluation. The two-wire or three-wire system can be
used here to connect the PT100 sensors. The sensors are divided into
two groups. This must be taken into account when the evaluation is
performed (factory setting).
To check the correct wiring and macro interconnection, first select limits
below the ambient temperature and check the messages.
After checking the correct wiring and macro interconnection, set the limit
values for alarm and shutdown to match the component monitored.
Checklists and forms
C.2 Checklist for electrical installation
SINAMICS SM150 6SL3845-7NN46-7AA0
212
Operating Instructions 04/2017