8400 HighLine | Parameter setting & configuration
Motor control (MCTRL)
Monitoring
204 L Firmware ≤ 05.00 - DMS 4.2 EN - 02/2010
5.11.5 Motor phase failure monitoring
To be able to surely detect the failure of a motor phase, the current sensor technology
requires a certain motor current to flow:
For this reason, the response set in C00597
(Lenze setting: "No response") is carried out
after a delay time of maximally 2 seconds after the controller enable if one of the
current-carrying motor phases U, V, W fails or if the motor connection is missing.
If the value for the current threshold set in C00599
is already exceeded within the delay
time, the motor phase failure monitoring starts at that point.
The monitoring checks the current flow for every motor phase, dependent on the
commutation angle:
The monitoring is tripped if the commutation angle of approx. 140° is covered without
the current set in C00599
being exceeded.
The monitoring is tripped at an output frequency of 0 Hz if none of the three motor phases
reaches the threshold value set in C00599
.
The monitoring is inactive
if
a controller inhibit is set.
connection to a rotating machine is carried out (flying restart circuit or connection to
actual speed value).
an error is pending due to a DC-bus overvoltage ("OU
").
motor parameter identification is carried out.
DC-injection braking is active.
Note!
In the Lenze setting (C00597 = "0: No response"), the motor phase failure
monitoring is not
activated!
efesotomasyon.com - Lenze
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