Lenze 8615E - Manual (Page 89)

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Every function can only be assigned to one output, including the
relay output. If you want to re-assign an output, the previous
programming is lost.
A function which is already assigned to an output, can only be
assigned to another terminal or the relay output, if the previously
used output has been assigned to another function.
5.4 Functions of the freely assignable digital outputs
5.4.1 Frequency below a certain level , Q
min
The inverter indicates via the assigned output that the output
frequency is smaller than the threshold set under C017. For example,
you can use the output for a holding brake and program under C017
at which output frequency the brake is to be released or engaged.
Code Parameter Meaning Acceptance
C017 2.0Hz
0.0...480Hz Threshold Q
min
ON-LINE
5.4.2 Maximum current reached, I
max
When the output current has reached the maximum current limit
which is programmed under C022, the red LED on the keypad is
illuminated and the assigned output sends a message.
In case of overload, the output frequency is automatically reduced
(V/f reduction) to prevent a further rising of the motor current. You
can also use the maximum current limit, e.g. to accelerate the drive
at the set maximum current limit. The motor then generates a
constant torque up to its rated frequency.
Code Parameter Meaning Acceptance
C022 Maximum output current
(Imax limit)
0.08...1.0
⋅
I
max inverter
Maximum current limit ON-LINE
If you set the chopper frequency to a fixed value of 12 or 16 kHz, the
current limit is reduced internally to a permissible value. For setting
the chopper frequencies see page 91.
5.4.3 Set-value reached
As soon as the ramp generator of the main set-value has reached
the set-value, the assigned output is switched. If you want the
output to switch even before reaching the set-value, enter a range
under C241 where you want the function to be active. The
thresholds are the set-value which is reduced and increased by the
entered value.
Code Parameter Meaning Acceptance
C241 0.5 %
0.0...100% Window "set-value reached" ON-LINE