Externally provide the necessary drive power supply. The terminal assignment is provided in
the circuit diagram of the drive.
3.9.28 Controlled outgoing circuit for anti-condensation heating 1-phase 230 VAC
(option N35)
This option includes a controlled outgoing feeder for external auxiliaries (1-phase 230 VAC,
50 Hz, 0.7 to 2.7 kW). The circuit breaker setting range is cos φ = 1 (3 A to 12 A).
The option is used, for example to operate anti-condensation heating. The controlled outgoing
feeder is protected by a miniature circuit breaker. The contactor is deactivated by means of an
ON command on the drive. The OFF command energizes the contactor.
The power supply for the anti-condensation heating, for example, must be provided externally.
The terminal assignment is provided in the circuit diagram of the drive.
3.9.29 Cell bypass (Option U11)
The power cell can be equipped with a bypass switch to increase the availability of the drive
system. The internal electronics automatically detects a defective power cell. The bypass
switch is activated without any interruption. As a consequence, even when a fault occurs, you
can continue to operate the drive without any interruption. You can replace the defective power
cell at the next maintenance interval.
See also
Replacing a power cell (Page 122)
3.10 Interfaces
3.10.1 Hydraulic interfaces
The cooling circuit dissipates the semiconductor losses. The water flows into the cooling circuit
through the inlet pipe. The water is heated by the waste in the semiconductors. The water flows
out through the return pipe.
More information:
● Auxiliary drive cooling system
● Combined auxiliary drive cooling system
See also
Connecting the water circuits (Page 77)
Description
3.10 Interfaces
SINAMICS PERFECT HARMONY GH150 6SL38253AE412AA1-Z
Operating Instructions Rev.201910281231 EXAMPLE 55
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