Nord Drivesystems SK 510P, Руководство с инструкциями по установке

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5 Parameter
BU 0600 en-3221 171
P537 Pulse Disconnection S
Setting range 10 ... 200 % / 201
Factory setting { 150 }
Description This function prevents rapid shutdown of the FI 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 switching off of individual output stage transistors; the actual
output frequency remains unchanged.
Note The value set here can be undershot by a smaller value in P536 .
For smaller output frequencies (< 4.5 Hz) or higher pulse frequencies (> 6 kHz or
8 kHz, P504), pulse switch-off by power reduction (Chap. 8.4 "Reduced output
power")can be undershot.
If the function is disabled and a high pulse frequency is selected in parameter P504 ,
the frequency inverter automatically reduces the pulse frequency when the power
limits are reached. If the load on the inverter is reduced, the pulse frequency
increases back to the original value.
Setting values
Value Meaning
10 ... 200 % Limit value in relation to nominal FI current
201 The function is so to speak disabled; the FI supplies the maximum
possible current. However, at the current limit the pulse switch off
can still be active.
P538 Mains voltage Monitoring S
Setting range 0 ... 4
Factory setting { 3 }
Description "
Mains voltage monitoring
". For reliable operation of the frequency inverter the power
supply must have a certain quality. If there is a brief interruption of a phase or the
voltage supply falls below a particular limit value, the inverter will output an error.
Under certain operating conditions, it may be necessary to suppress this error
message. In this case, the input monitoring can be modified.
Note Operation with an impermissible mains voltage can destroy the frequency inverter!
With 1/3~230 V or 1~115 V devices, the phase error monitoring does not function!
Setting values
Value Meaning
0 Off No monitoring of supply voltage.
1 Phase error Only phase errors will produce an error message.
2 Mains voltage Only low voltage will produce an error message.
3 Phase err. + mains voltage
"Phase error and mains voltage"
. A phase error or undervoltage
triggers an error message.
4 DC supply The input voltage is fixed at 480 V for the direct supply of direct current.
Phase error and low mains voltage monitoring are deactivated.