Siemens SINAMICS GM150 Operating Instructions & Installation Instructions page 211

Activity
An auxiliary supply (3-phase 380 VAC) must be provided for the aux‐
iliary equipment (e.g. cabinet fan / DC-link precharging). Refer to the
"Technical specifications" for the drives for details of current con‐
sumption. Protect the low-voltage feeder appropriately at the plant.
With respect to the phase sequence, make sure that fans rotate in the
right direction.
If a voltage other than the auxiliary supply (3-phase 380 – 415 VAC) is
used, a suitable matching transformer is required (option Y75).
Ensure that the chosen taps are appropriate for the voltage present.
With respect to the phase sequence, make sure that fans rotate in the
right direction.
The open-loop and closed-loop control systems are supplied with
voltage (230 VAC 50/60 Hz) via terminals. Refer to the "Technical
specifications" for the drives for details of current consumption. If
communication with the open-loop and closed-loop control system is
to be maintained even if the main voltage fails or the drive is to be
switched on again automatically if the power fails, this voltage must
originate from a secure network. Alternatively, choose option L53
(UPS-supported power supply for the closed-loop control system).
Option L19
To supply auxiliary equipment (e.g. separately-driven motor fan), the
drive must be properly connected to terminals ‑X155:1 (L1) to ‑X155:3
(L3). The supply voltage of the auxiliary equipment must match the
input voltage of the drive. The load current must not exceed 10 A and
must be set in accordance with the connected consumer.
Option L55
If the drive is equipped with the anti-condensation heating option, then
provide the required auxiliary voltage (V) via the terminals. Protect the
auxiliary supply with fuses on the low-voltage distribution board side.
This voltage is not integrated in the EMERGENCY STOP sequence of
the drive and is, therefore, present even when the EMERGENCY
STOP button has been actuated. These cabinet-internal cables can
be easily identified by their orange insulation.
Service sockets
Provide for the service power sockets in the control cabinet as well as
for the optional cabinet lighting (option L50) on the auxiliary voltage
supply
230 V). Protect the auxiliary voltage supply with 10 A fuses on the
plant. This voltage is not integrated in the EMERGENCY STOP se‐
quence of the drive and is, therefore, present even when the EMER‐
GENCY STOP button has been actuated. These cabinet-internal ca‐
bles can be easily identified by their orange insulation.
SINAMICS GM150 6SL3810-2LN31-8AA2
Operating Instructions Rev.201910281332 EXAMPLE
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211