3.8.13 Sirius safety relay
The SIRIUS 3TK2825 safety relay has two enable circuits (safe circuits) in the form of normally
open contact circuits.
Figure 3-9 SIRIUS safety relay
The operating state and functioning are indicated by three LEDs. When the EMERGENCY
STOP buttons or limit switches are released and the ON button is pressed, the internal circuit
of the safety relay and the external contactors are monitored to ensure that they are functioning
correctly.
See also
LEDs of the Sirius safety relay (Page 101)
3.8.14 Auxiliary power supply
3.8.14.1 1 AC auxiliary voltage
The customer must provide a 1 AC auxiliary power supply for the following components:
● Cabinet lighting
● Service socket outlets
● Anti-condensation heating
● Open-loop and closed-loop control
Refer to the drive technical data for auxiliary power supply current rating. The terminal
assignment is provided in the circuit diagram of the drive.
Description
3.8 Components
SINAMICS PERFECT HARMONY GH150 6SL38253AE412AA1-Z
46 Operating Instructions Rev.201910281231 EXAMPLE
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