Control Section - Siemens SINAMICS PERFECT HARMONY GH180 Operating Instructions Manual

Note
Power Fuse Replacement Recommendation
As a preventive maintenance measure for drives that experience daily power cycling, Siemens
recommends replacing all power fuses that have been in operation for ten years.
Note
E-rated Fuses
The core drive does not include primary fuses. When E-rated fuses are required, consult Siemens
Engineering.
4.1.5

Control Section

Coordinated Input Protection Scheme
The SINAMICS Perfect Harmony™ GH180 product uses the controller with an integral I/O system.
The Control System continuously measures input currents and voltages to the drive's input
transformer and also protects against transformer secondary side faults that cannot be seen by
typical primary protection relaying. Install the drive with the input protection interface trip
contacts as shown in figure Input Protection Interface for Trip Contacts. Check to ensure proper
connections. Failure to install the drive with the input protection interface trip contacts as
specified invalidates all standards compliance statements and all product certifications.
Information such as efficiency, power factor, and harmonics are available to the user. In the
event of a fault condition, the control system provided a means of interrupting the incoming
power. It is required for drive input switchgear to be interlocked to the control system to enable
the means for interrupting power.
Secondary Circuit Fault
Failure to integrate a medium voltage circuit breaking device, or contactor, may cause death,
serious personal injury, and damage to the drive.
The drive's medium voltage input associated protection (examples: circuit breaker, contactor,
fuses) trips when the dry contact output, supplied standard with each drive, changes state. A
change of state occurs when the drive's input power and power factor do not fall within the
range of designated hard-coded normal operating conditions.
Type 6SR5 Air-Cooled
Operating Instructions, AK, A5E39390112
DANGER
Description
4.1 Cabinet Details
21