Sinamics Perfect Harmony Gh180 6Sr41 Manufactured In Nma Nuernberg, Germany - Siemens GH180 Operating Instructions Manual

Slip
Slip is the difference between the stator electrical frequency of the motor and the rotor
mechanical frequency of the motor, normalized to the stator frequency as shown in the
following equation:
Slip = (ωS - ωR) / ωS
Slip compensation
Slip compensation is a method of increasing the speed reference to the speed regulator circuit
(based on the motor torque) to maintain motor speed as the load on the motor changes. The
slip compensation circuit increases the frequency at which the inverter section is controlled to
compensate for decreased speed due to load droop. For example, a motor with a full load
speed of 1760 rpm has a slip of 40 rpm. The no load rpm would be 1800 rpm. If the motor
nameplate current is 100 A, the drive is sending a 60 Hz wave form to the motor (fully loaded);
then the slip compensation circuit would cause the inverter to run 1.33 Hz faster to allow the
motor to operate at 1800 rpm, which is the synchronous speed of the motor.
SMC
Is an acronym for Synchronous Motor Control, one of the control modes of the drive. This mode
computes the rotational speed similarly to open-loop vector control, and controls the field
reference or the synchronous motor as in closed-loop synchronous motor control.
SOP
(1) SOP is an acronym for Sum Of Products. The term "sum-of-products" comes from the
application of Boolean algebraic rules to produce a set of terms or conditions that are grouped
in a fashion that represents parallel paths (ORing) of required conditions that all must be met
(ANDing). This would be equivalent to branches of connected contacts on a relay logic ladder
that connect to a common relay coil. In fact, the notation can be used as a shortcut to describe
the ladder logic.
(2) SOP, when used as a filename extension, refers to System Operating Program.
SOP Utilities
The program within the Siemens Tool suite used for converting between text and machine
loadable code. It can also be used for uploading and downloading files over the RS232
connection.
See Tool Suite definition.
Speed Menu function
Speed menu is a feature of the menu system that allows the operator to directly access any
of the menus or parameters, rather than scrolling through menus to the appropriate item. This
feature uses the [Shift] button in conjunction with the right arrow. The user is prompted to enter
the four digit ID number associated with the desired menu or parameter.

SINAMICS PERFECT HARMONY GH180 6SR41 manufactured in NMA Nuernberg, Germany

Operating Instructions Rev.201706301306
Glossary
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