P10, Measuring Instrument For Line Values (Installed In The Cabinet Doors) - Siemens SINAMICS S120 Device Manual

8.49 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 slices of 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
Note
Current transformers are required in the Line Connection Module to measure line currents.
Option L41 (current transformer upstream of the main switch) is included in option P10. The
measuring instrument "DIRIS A40" is wired according to connection type 3NBL/4NBL in the
factory.
The current transformers must not be operated unloaded.
Note
Additional information
Detailed and comprehensive instructions and information regarding the "DIRIS A40"
measuring instrument can be found in the accompanying operating instructions. These
operating instructions are available as additional documentation on the customer DVD
supplied with the device.
Cabinet Modules NEMA
Manual, 04/2014, A5E03586450A

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

Options
,
®
497