6 mains phase failure monitoring, 7 maximum current monitoring, Mains phase failure monitoring – Lenze E84DSxxx User Manual
Page 187: Maximum current monitoring, 5motor control (mctrl)
Lenze · 8400 protec StateLine · Reference manual · DMS 4.2 EN · 03/2013 · TD05
187
5
Motor control (MCTRL)
5.10
Monitoring
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5.10.6
Mains phase failure monitoring
The drive controller has a simple mains-phase failure detection function with which a mains phase
failure can be detected under load.
• In the case of power-adapted machines, approx. 50 % of the rated motor power must be
exceeded so that a main-phase failure can be detected.
• If the mains phase failure monitoring is tripped:
• The error response set in
will be carried out (Lenze setting: "Warning").
• The "
Su02: Mains voltage switched-off
" error message is entered into the logbook.
• The bMctrlMainsFault status output of the
system block will be set to
TRUE.
5.10.7
Maximum current monitoring
The maximum currents that can be parameterised in
and
are limit values that serve
to protect the motor from destruction and the influence of the rated data.
• If the instantaneous value of the motor current exceeds one of the two limit values, the
response set in
will be carried out to protect the motor (Lenze setting: "0: No Reaction").
If the monitoring is active, the "
" error message will be entered in the logbook.
Stop!
Under load, the mains input of a three-phase controller can be destroyed if the device is
only supplied by two phases (e.g. if a mains phase fails).
Note!
In the Lenze setting (
= "0: No Reaction"), the maximum current monitoring is not
activated!
Note!
If a Lenze motor is selected from the catalogue whose plant parameters are transferred
into the controller, the settings in
and
will automatically be adapted to
the selected motor.