NORD Drivesystems BU0500 - Manual (Page 85)

5 Parameters
BU 0500 GB-1013 85
Pos : 135 /Anleit ungen/5. / 6. Parametrier ung [BU 0500 / BU 0200]/ Par ameter/ P200-P299/ Paramet er P215 – Boos t Vor halt @ 0\ mod_1327590415702_388. doc x @ 8209 @ @ 1
P215
Boost precontrol
(Boost precontrol)
S P
0 ... 200 %
{ 0 }
Only advisable with linear characteristic curve (P211 = 0% and P212 = 0%).
For drives that require a high starting torque, this parameter provides an option for switching in an
additional current during the start phase. The application time is limited and can be selected at
parameter >Time boost precontrol< P216.
All current and torque current limits that may have been set (P112 and P536, P537) are deactivated
during the boost lead time.
NOTE:
With active ISD control (P211 an
d / or P212 ≠ 0%), parameterisation of P215 ≠ 0 results in incorrect
control.
Pos : 136 /Anleit ungen/5. / 6. Parametrier ung [BU 0500 / BU 0200]/ Par ameter/ P200-P299/ Paramet er P216 – Zeit Boost Vor hal t @ 0\ mod_1327590478846_388.doc x @ 8232 @ @ 1
P216
Time boost prectrl.
(Time boost precontrol)
S P
0.0 ... 10.0 sec
{ 0 }
Only advisable with linear characteristic curve (P211 = 0% and P212 = 0%).
Application time for increased starting current.
NOTE: With active ISD cont
rol (P211 and / or P212 ≠ 0%), parameterisation of P216 ≠ 0
results in incorrect control.
Pos : 137 /Anleit ungen/5. / 6. Parametrier ung [BU 0500 / BU 0200]/ Par ameter/ P200-P299/ Paramet er P217 – Sc hwing ungs dämpf ung @ 0\ mod_1327590520707_388. doc x @ 8255 @ @ 1
P217
Oscillation damping
(Oscillation damping)
S P
0 ... 400 %
{ 10 }
SW1.6 and above
With the oscillation damping, idling current harmonics can be damped. Parameter 217 is a measure
of the damping power.
For oscillation damping the oscillation component is filtered out of the torque current by means of a
high pass filter. This is amplified by P217, inverted and switched to the output frequency.
The limit for the value switched is also proportional to P217. The time constant for the high pass
filter depends on P213. For higher values of P213 the time constant is lower.
With a set value of 10% for P217, a maximum of ± 0.045Hz are switched in. At 400% in P217, this
corresponds to ± 1.8Hz
The function is not active in “Servo mode, P300”.
Pos : 138 /Anleit ungen/5. / 6. Parametrier ung [BU 0500 / BU 0200]/ Par ameter/ P200-P299/ Paramet er P218 – M odul ati onsgrad @ 0\ mod_1327590589726_388. doc x @ 8278 @ @ 1
P218
Modulation depth
(Modulation depth)
S
50 ... 110 %
{ 100 }
SW 1.5 and above
This setting influences the maximum possible output voltage of the FI in relation to the mains
voltage. Values <100% reduce the voltage to values below that of the mains voltage if this is
required for motors. Values >100% increase the output voltage to the motor increased the
harmonics in the current, which may cause swinging in some motors.
Normally, 100% should be set.
Pos : 139 /Anleit ungen/5. / 6. Parametrier ung [BU 0500 / BU 0200]/ Par ameter/ P200-P299/ Paramet er P219 – Aut o.Mag n. anpass ung @ 0\ mod_1327590637383_388.doc x @ 8301 @ @ 1