N52, Dc Link Fuses For Basic Line Modules; P10, Measuring Instrument For Line Values (Installed In The Cabinet Doors) - Siemens SINAMICS S120 Manual

Options

8.55 N52, DC link fuses for Basic Line Modules

8.55 N52, DC link fuses for Basic Line Modules
Availability of option
This option is available for the following S120 Cabinet Modules:
● Basic Line Modules
Description
Fuses are installed on the DC side to protect the Basic Line Module.
Installation of DC fuses is recommended if the DC current load in the configured drive line-up
can be larger than the rated DC link current of the Basic Line Module.
Furthermore, the DC fuses protect the Basic Line Module against an overvoltage on the DC
busbar of the drive line-up in the event of a malfunction.
8.56

P10, measuring instrument for line values (installed in the cabinet doors)

Availability of option
This option is available for the following S120 Cabinet Modules:
● Line Connection Modules
Description
The measuring instrument "DIRIS A40" with display, installed in the cabinet door of the Line
Connection Module, acquires measured values of the power supply. In addition to these
measured values, additional plant values (such as power and power factor, etc.) are
calculated from the measured values using powerful, state-of-the art microprocessors. The
measuring instrument is equipped with a serial RS485 interface with JBUS/MODBUS
which supports a max. transmission rate of 38.4 kbaud.
The device can measure the following as standard:
● Actual currents per phase and actual currents of the neutral conductor.
● Average currents and maximum currents over programmable time intervals from 8 to 30 min.
● Phase-to-neutral voltages and phase-to-phase voltages
● Frequency (Hz)
● Four-quadrant measurement of the actual, average, and maximum active power (+/-),
reactive power (+/-) and apparent power per phase and in total over programmable time
intervals from 8 to 30 min.
● Display of active energy in kWh.
● Power factor (PF) per phase and in total with the specifications "L" for inductive and "C"
for capacitive.
544
,
®
Cabinet Modules
Manual, 03/2013, A5E03263538A