Nord Drivesystems SK 510P, Руководство с инструкциями по установке

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5 Parameter
BU 0600 en-3221 99
P103 Deceleration time P
Setting range 0.00 … 320.00 s
Factory setting { 2.00 }
Description The deceleration time is the time corresponding to the linear frequency reduction from
the set maximum frequency
P105 to 0 Hz. If an actual setpoint <100 % is being used,
the deceleration time reduces accordingly.
The deceleration time can be extended by certain circumstances, e.g. by the selected
“Disconnection mode”
P108 or
“Ramp smoothing”
P106 .
Note Care must be taken that the parameter values are realistic. The setting P103 = 0 is
not permissible for the drive units!
Notes on ramp gradient : see P102
P104 Minimum frequency P
Setting range 0.0 … 400.0 Hz
Factory setting { 0.0 }
Description The minimum frequency is the frequency supplied by the FI as soon as it is enabled
and no additional setpoint is set.
In combination with other setpoints (e.g. analogue setpoint or fixed frequencies) these
are added to the set minimum frequency.
This frequency is undershot when
• The drive is accelerated from standstill.
• The FI is blocked. The frequency then reduces to the absolute minimum frequency
P505 before it is blocked.
• The FI reverses. Reversal of the rotation field takes place at the absolute minimum
frequency
P505 .
This frequency can be continuously undershot if the function
"Maintain the freq.”
(digital input function = 9) was executed during acceleration or deceleration.
P105 Maximum frequency P
Setting range 0.1 … 400.0 Hz
Factory setting { 50.0 }
Description The maximum frequency is the frequency supplied by the FI after being enabled and
once the maximum setpoint is present (e.g. analogue setpoint according to
P403 , a
correspondingly fixed frequency or maximum via a ParameterBox).
This frequency can only be exceeded by the slip compensation P212 , the function
“Maintain the freq.”
(digital input function = 9) and the switch to another parameter set
with lower maximum frequency.
Maximum frequencies are subject to certain restrictions, e.g.
• Restrictions in weak field operation,
• Compliance with mechanically permissible speeds,
• PMSM: Restriction of the maximum frequency to a value which is slightly above
the nominal frequency. This value is calculated from the motor data and the input
voltage.