NOTICE!
Plausibility check: In order to prevent obvious wrong settings the device monitors
constantly all temporary saved parameter changes. If the device detects an
implausibility, this is indicated by a question mark in front of the respective parameter.
In order to make things easier to follow up, especially where complex parameter changes
are involved, on every superior/higher-ranking menu level, above the temporary saved
parameters an invalidity is indicated by the question mark (plausibility trace). This makes
it possible to control or follow from the main menu level at any time where implausibilities
are intended to be saved.
In addition to the question mark trace to the temporary saved implausible parameter
changes a general implausibility symbol/question mark is faded-in at the left corner of the
display, and so it is possible to see from each point of the menu tree that implausibilities
have been detected by the device.
A star/parameter change indication is always overwritten by the question mark/
implausibility symbol.
If a device detects an implausibility, it rejects saving and adopting of the parameters.
NOTICE!
Configuration change: Whenever changes are made to the settings of protection
parameters (device planning, global parameters or setting group parameters for more
than one setting group) all protection functionality is completely deactivated for a short
time. This means that all protection modules are inactive for some time, so that they can
be restarted with the new settings. This way it is made sure that all protection behavior is
consistent with respect to the new settings.
Program Mode
By means of the Program Mode, parameter settings can be locked against any changes
unless the motor is standing still. The Program Mode can be activated via [System Para /
General Settings] »Program Mode«. The available setting values are as follows:
• “Motor Stop”: Lock parameter changes, if the motor is not in the »STOP« state. This
ensures that parameter changes can only be done while the motor stands still (zero
speed).
• “Either Motor Stopped or Running”: Parameter changes do not require the motor to
be in the »Motor stop« state.
Bypass of the Program Mode
The program mode can be bypassed by means of the Direct Control Parameter [System
Para / General Settings] »Program Mode Bypass«.
The protective device will fall back into the Program Mode as follows:
• Directly after a parameter change has been saved, or
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EMR-3MP0
1 EMR‑3MP0 Motor Protection Relay
1.3 Modules, Settings, Signals and Values