Input Phases Failure Detection; Figure 17: Limit Switch - KEB COMBIVERT F6 Programming Manual

Protection functions
If this function is used, no homing should be carried out during operation. This
would reset/change the positions and the override function could not work properly.
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1

Figure 17: Limit switch

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Input phases failure detection

Index Id-Text Name
0x2A2A pn42 E.Uph stop mode
There are two internal functions which monitor the DC link voltage in order to avoid
a premature ageing of the capacitors.
If the ripple of
(typically 120V at 400V devices), error 52: ERROR undervoltage phase (E.Uph) is
triggered.
The second function is only active with 3-phase inverters. This function monitors
the ripple of the DC link within a certain frequency range. Error 52: ERROR un-
dervoltage phase (E.Uph) can also be triggered if the frequency of the fluctuation
of ru14
Since a ripple of the DC link voltage can also be triggered by the application (load
cycle or oscillations of the controller), the more sensitive, frequency-dependent
monitoring function can be switched off with
function.
If the UPS mode is active (chapter 4.4.21 UPS mode ), the phase failure detection
is generally deactivated.
88
ru14 exceeds 10 times within 16 ms a power unit-dependent value
indicates that an input phase is missing.
1fghfh
Function
Error reaction (=> see Chapter 4.3.1 Errors)
pn42 or it can be used only as warning
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