Siemens SINAMICS G120P, Руководство по эксплуатации

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Functions
7.7 Application-specific functions
Inverter cabinet units
404
Operating Instructions, 12/2014, A5E32923362A
5. Switchover to bypass operation - option
If the inverter is not in a position to acknowledge pending faults using the automatic
restart, then it goes into a fault condition with fault F07320.
In order to also be able to operate the motor in this case, you have the option of directly
connecting the motor to the line supply using the bypass operation function.
For this, you must observe the following items:
–
Ensure that the direction of rotation does not change when switching over to bypass
operation.
– Set that the bypass is activated via a signal (p1267 = 0).
– Make other settings for "Switch over to bypass (Page 412)".
Application example
An application example for the essential service mode can be found on the Internet at the
following address: http://support.automation.siemens.com/WW/view/en/63969509
( http://support.automation.siemens.com/WW/view/en/63969509 )
7.7.14 Multi-zone control
Multi-zone control is used to control quantities such as pressure or temperature via the
technology setpoint deviation. The setpoints and actual values are fed in via the analog
inputs as current (0 … 20 mA) or voltage (0 … 10 V) or as a percentage via temperature-
dependent resistances (LG-Ni1000 / Pt1000, 0° C = 0%; 100° C= 100%).
Control variants for multi-zone control
There are three control variants for multi-zone control, which are selected via p31021:
● One setpoint and one, two or three actual values
The actual value for the control can be calculated as mean value, maximum value or
minimum value by the inverter. You can find all of the setting options in the parameter list
in parameter p31022.
–
Average value: The deviation from the setpoint of the average value of two or three
actual values is controlled.
– Minimum value: The deviation from the setpoint of the smallest actual value is
controlled.
– Maximum value: The deviation from the setpoint of the highest actual value is
controlled.