NORD Drivesystems BU0200 - Manual (Page 177)

SK 200E Manual for frequency inverters
176 Subject to technical alterations BU 0200 GB-4411
Parameter
{Factory setting}
Setting value / Description / Note Device Supervisor
Parameter
set
P103
Deceleration time
(Deceleration time)
P
0 ... 320.00 s
{ 2.00 }
Deceleration time (braking ramp) is the time corresponding to the linear frequency reduction from
the set maximum frequency (P105) to 0Hz. If an actual setpoint <100% is used, the deceleration
time reduces accordingly.
The deceleration time can be extended by certain circumstances, e.g. by the selected >Switch-off
mode< (P108) or >Ramp smoothing< (P106).
Notes on ramp gradient: See parameter (P102)
P104
Minimum frequency
(Minimum frequency)
P
0.0 ... 400.0 Hz
{ 0.0 }
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. analog setpoint of fixed frequencies) these are added to
the set minimum frequency.
This frequency is undershot when
a) The drive is accelerated from standstill.
b) The FI is blocked. The frequency then reduces to the absolute minimum (P505)
before it is blocked.
c) The FI is reversing. The reverse in the rotation field takes place at the absolute
minimum frequency (P505).
This frequency can be continuously undershot if, during acceleration or braking, the function
"Maintain frequency" (Function Digital input = 9) is executed.
P105
Maximum frequency
(Maximum frequency)
P
0.1 ... 400.0 Hz
{ 50.0 } DIP7 = off
{ 60.0 } DIP7 = on
Section 5.2.2.2
The frequency supplied by the FI after being enabled and once the maximum setpoint is present,
e.g. analog setpoint corresponding to P403, a correspondingly fixed frequency or maximum via
the SimpleBox / ParameterBox.
This frequency can only be overshot by the slip compensation (P212), the function "Maintain
frequency" (function digital input = 9) or a change to another parameter set with lower maximum
frequency.