nord NORDAC FLEX SK 200E Series User Manual page 199

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Current limit
P536
(current limit)
0.1 ... 2.0/2.1 The VFD output current is limited to the set value. If this limit value is reached, the VFD reduces
(x nominal VFD the actual output frequency.
current)
With the analog input function in P400 = 13/14, this limit value can also be varied and cause an
{ 1.5 } error message (E12.4).
0.1 ... 2.0 = Multiplier with the VFD nominal current, gives the limit value.
2.1 = OFF
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Pulse disconnection
P537
(pulse disconnection)
10 ... 200 %/201 This function prevents rapid shutdown of the VFD according to the load. With the pulse switch-off
enabled, the output current is limited to the set value. This limitation is implemented by brief
{ 150 }
switching off of individual output stage transistors, the actual output frequency remains
unchanged.
10...200% =
201 =
NOTE:
NOTE:
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BU 0200 en-US-4920
means that this limit value is disabled. The VFD supplies the maximum possible
current.
Limit value in relation to nominal VFD current
The function is so to speak disabled, the VFD supplies the maximum
possible current. However, at the current limit the pulse switch off can still be
active.
The value set here can be undershot by a smaller value in P536.
At smaller output frequencies (<4.5 Hz) or higher pulse frequencies (>6 kHz or
8 kHz, P504) the pulse switch-off can be undershot by the power reduction (
8.5).(please see chapter 8.4 "Reduced output power")
If the pulse switch-off is disabled (P537=201) and a high pulse frequency is
selected in parameter P504, the VFD automatically reduces the pulse
frequency when the power limit is reached. If the load on the VFD is reduced
again, the pulse frequency increases back to the original value.
5 Parameter
S
S
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