NORD Drivesystems BU0505 - Manual (Page 92)

SK 54xE – Users Manual for Frequency Inverters
92 BU 0505 GB-1013
P246 Mass inertia PMSM
(Mass inertia PMSM)
S P
0.1 … 1000.0 kg*cm²
{ 5.0 }
The mass inertia of the drive system can be entered in this parameter. For most applications the
default setting is sufficient. However, for highly dynamic systems the actual value should ideally be
entered. The values for the motors can be obtained from the technical data. The portion of the
external centrifugal mass (gear unit, machine) must be calculated or determined experimentally.
Pos : 146 /Anleit ungen/5. / 6. Parametrier ung [BU 0500 / BU 0200]/ P3xx R egelungs par amet er @ 0\ mod_1327591132858_388. doc x @ 8462 @ 5 @ 1
Control parameters
Only available above SK 520E with the use of an incremental encoder.
Parameter
{factory setting}
Setting value / Description / Note Supervisor
Parameter
set
Pos : 147 /Anleit ungen/5. / 6. Parametrier ung [BU 0500 / BU 0200]/ Par ameter/ P300-P399/ Paramet er P300 – Ser vo Modus @ 0\mod_1327591436317_388.doc x @ 8488 @ @ 1
P300
Servo mode
(Servo Mode)
P
0 ... 1
{ 0 }
This parameter activates speed control with speed measurement via an incremental encoder.
This results in a very stable speed behaviour down to the standstill of the motor.
0 = Off
1 = No
NOTE:
For correct function, an incremental encoder must be connected and the correct pulse number
must be entered in parameter P301.
Pos : 148 /Anleit ungen/5. / 6. Parametrier ung [BU 0500 / BU 0200]/ Par ameter/ P300-P399/ Paramet er P301 – Dr ehg eber Auflös ung @ 0\ mod_1327591605104_388. doc x @ 8511 @ @ 1
P301
Rotary encoder res.
(Rotary encoder resolution)
0 ... 17
{ 6 }
Input of the pulse-count per rotation of the connected encoder.
If the encoder rotation direction is not the same as the FI, (depending on installation and wiring),
this can be compensated for by selecting the corresponding negative pulse numbers 8...16.
0 = 500 pulses
1 = 512 pulses
2 = 1000 pulses
3 = 1024 pulses
4 = 2000 pulses
5 = 2048 pulses
6 = 4096 pulses
7 = 5000 pulses
8 = -500 pulses
9 = -512 pulses
10 = -1000 pulses
11 = -1024 pulses
12 = -2000 pulses
13 = -2048 pulses
14 = -4096 pulses
15 = -5000 pulses
16 = -8192 pulses
17 = + 8192 pulses
NOTE:
(P301) is also significant for position control via incremental encoders. If an incremental encoder
is used for positioning (P604=1), the setting of the pulse number is made here. (Please refer to
POSICON Supplementary Manual)
Pos : 149 /Anleit ungen/5. / 6. Parametrier ung [BU 0500 / BU 0200]/ Par ameter/ P300-P399/ Paramet er P310 – Dr ehzahl R egler P @ 0\mod_1327591703606_388.doc x @ 8534 @ @ 1
P310
Speed controller P
(Speed controller P)
P
0 ... 3200 %
{ 100 }
P-component of the speed encoder (proportional amplification).
Amplification factor, by which the speed difference between the setpoint and actual frequency is
multiplied. A value of 100% means that a speed difference of 10% produces a setpoint of 10%.
Values that are too high can cause the output speed to oscillate.
Pos : 150 /Anleit ungen/5. / 6. Parametrier ung [BU 0500 / BU 0200]/ Par ameter/ P300-P399/ Paramet er P311 – Dr ehzahl R egler I @ 0\ mod_1327591756013_388. doc x @ 8557 @ @ 1