Cabinet Illumination And Service Socket In Closed-Loop Control Unit (Option L50); Disconnector At The Drive Output (Option L51); Circuit Breaker At The Drive Output (Option L52); Uninterruptible Power Supply (Ups) (Option L53) - Siemens SINAMICS GM150 Operating And Installation Instructions

For safety reasons, the drive controller prevents the make-proof grounding switches from being
switched when voltage is still present. Activation is integrated in the protection and monitoring
sequence of the drive.
3.6.25

Cabinet illumination and service socket in closed-loop control unit (option L50)

One universal light with service socket is installed in each cabinet element for the trigger and
control section. The universal light and the power socket are supplied externally with power
and must be fused with max. 16 A.
The cabinet illumination can be switched on manually or automatically by means of an
integrated motion detector (default setting). If the light is switched on by the motion detector,
it stays on for three minutes. The mode is selected via the switch on the light.
The terminal assignment is provided in the circuit diagram of the drive.
3.6.26

Disconnector at the drive output (option L51)

With this option, a motor-operated isolator is integrated at the drive output.
If manual isolation between the drive output and drive motor is required for protection and
safety reasons, this can be achieved by means of the motor-operated isolator.
3.6.27

Circuit breaker at the drive output (option L52)

With this option, a circuit-breaker is integrated at the drive output. If isolation between the drive
output and drive motor is required for protection and safety reasons, this can be achieved by
means of the circuit-breaker. The circuit-breaker is controlled from the drive controller. When
an ON command is issued, the output-side circuit-breaker is activated along with the auxiliary
equipment. When an OFF command is issued, the circuit-breaker is deactivated.
3.6.28

Uninterruptible power supply (UPS) (option L53)

The uninterruptible power supply (UPS) ensures that the control system continues to run
because the line voltage is protected. The following conditions must be met in order that the
drive can continue to operate:
● The DC-link voltage does not undershoot the U
● The medium-voltage switch does not switch off because of undervoltage.
If kinetic buffering is activated, drives with large moments of inertia can bridge voltage brown-
outs or short power failures. The kinetic buffering supports the DC-link voltage.
SINAMICS GM150 6SL3815-2LN41-4AA2
Operating Instructions 04/2017
3.6 Description of options
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Description
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