nord NORDAC PRO SK 511E Series - Page 113

5 Parameters
BU 0505 EN-3021 113
P327
Speed slip error
(Speed slip error, speed control)
0 ... 3000 rpm
{ 0 }
The limit value for a permitted maximum slip error can be set. If this value is reached, the FI
switches off and indicates
error E013.1. The slip error monitoring functions both with active and
inactive servo mode (P300).
0 = OFF,
Relevant settings
Encoder type Electrical connection Parameter
TTL encoder
Encoder interface (Terminals X6)
P325 = 0
HTL encoder
DIN2 (Terminal X5:22)
…
P420 [-02] or P421 = 43
DIN5 (Terminal X5:24)
…
P420 [-04] or. P423 = 44
P461 = 0
Pos: 196 /Anleitungen/ Elektronik/F U und Starter/5. Parameter/ Parameterauflis tung (P000 ...)/P300- P399/Parameter P328 – Ver zögerung Schleppfehler @ 0\mod_1327677464020_388. docx @ 8888 @ @ 1
P328
Speed slip delay
(Speed slip error delay)
0.0 ... 10.0 sec
{ 0.0 }
above SW 2.0
If the permissible speed slip error defined in (P327) is exceeded the error message
E013.1 is
suppressed within the time limits which are set here.
0.0 = OFF
Pos: 197 /Anleitungen/ Elektronik/F U und Starter/5. Parameter/ Parameterauflis tung (P000 ...)/P300- P399/Parameter P330 – Regel verfahren PMSM [SK 180E, SK 2xxE, SK 5xxE] @ 6\mod_141768 9681656_388.doc x @ 191837 @ @ 1
P330
Regulation PMSM
(Regulation PMSM)
S
0 ... 3
{ 1 }
Determination of the regulation of PMSM (Permanent Magnet Synchronous Motors) at speed
n<n
SWITHOVER
(See P331).
Pos: 198 /Anleitungen/ Elektronik/F U und Starter/5. Parameter/ Parameterauflis tung (P000 ...)/P300- P399/Parameter P330 – Rege lverfahren PMSM _ Einstel lung 0 @ 6\mod_1417690215 346_388.docx @ 191899 @ @ 1
0 =
Voltage controlled
: With the first start of the machine,
a voltage indicator is memorised
which ensures that the rotor of the machine is set to the rotor position "zero". This type of
starting position of the rotor can only be used if there is no counter
-torque from the machine
(e.g. flywheel drive) at frequency
"zero". If this condition is fulfilled, this method of
determining the position of the rotor is very precise (<1° electrical). In principle, this method
is not suitable for lifting equipment, as there is always a counter
-torque.
For operation
without encoders, the following applies: Up to the switch over frequency P331
the motor (with the nominal current memorised) is driven under voltage control. Once the
switch over frequency has been reached, the method of determining the rotor position is
switched over
to the EMF method. If, taking hysteresis (P332) into account, the frequency
falls below the value in (P331), the frequency inverter switches back from the EMF method
to voltage controlled operation.
Pos: 199 /Anleitungen/ Elektronik/F U und Starter/5. Parameter/ Parameterauflis tung (P000 ...)/P300- P399/Parameter P330 – Rege lverfahren PMSM _ Einstel lung 1 @ 6\mod_1417690352 429_388.docx @ 191930 @ @ 1
1 =
Test signal method
: The starting position of the rotor is determined with a test signal. This
method also functions at a standstill with the brake applied, however it requires a PMSM
with sufficient anisotropy between the inductivity of the d and q axes. The higher this
anisotropy is, the greater the precision of the method. By means of parameter (P212)
the
voltage level of the test signal can be adjusted and with parameter (P213) the position of the
motor position control can be adjusted. For motors which are suitable for use with the test
signal method, a rotor position accuracy of 5°…10° electrical can be achieved (depending
on the motor and the anisotropy).
Pos: 201 /Anleitungen/ Elektronik/F U und Starter/5. Parameter/ Parameterauflis tung (P000 ...)/P300- P399/Parameter P330 – Rege lverfahren PMSM _ Einstel lung 2 [SK 54xE] @ 6\mod_1417690 446787_388.doc x @ 191961 @ @ 1