Siemens SINAMICS G120D List Manual page 56

Parameters
List of parameters
p0304[0...n] Rated motor voltage / Mot U_rated
Access level: 1
Can be changed: C(1, 3)
Units group: -
Min
0 [Vrms]
Description: Sets the rated motor voltage (rating plate).
Caution: When selecting a catalog motor (p0301), this parameter is automatically pre-assigned and is write protected. Infor-
mation in p0300 should be carefully observed when removing write protection.
Note: When the parameter value is entered the connection type of the motor (star-delta) must be taken into account.
Once the Control Unit has booted for the first time or if the factory settings have been restored, the parameter is
pre-assigned to match the power unit.
p0305[0...n] Rated motor current / Mot I_rated
Access level: 1
Can be changed: C(1, 3)
Units group: -
Min
0.00 [Arms]
Description: Sets the rated motor current (rating plate).
Caution: When selecting a catalog motor (p0301), this parameter is automatically pre-assigned and is write protected. Infor-
mation in p0300 should be carefully observed when removing write protection.
Notice: If p0305 is changed during quick commissioning (p0010 = 1), then the maximum current p0640 is pre-assigned
accordingly.
Note: When the parameter value is entered the connection type of the motor (star-delta) must be taken into account.
Once the Control Unit has booted for the first time or if the factory settings have been restored, the parameter is
pre-assigned to match the power unit.
p0306[0...n] Number of motors connected in parallel / Motor qty
Access level: 1
Can be changed: C(1, 3)
Units group: -
Min
1
Description: Sets the number (count) of motors that can be operated in parallel using one motor data set.
Depending on the motor number entered, internally an equivalent motor is calculated.
The following should be observed in motors connected in parallel:
The following rating plate data should only be entered for one motor:
- resistances and inductances: p0350 ... p0361
- currents: p0305, p0320, p0323, p0325, p0329
- power ratings: p0307
- masses/moments of inertia: p0341, p0344
All other parameters take into account the replacement/equivalent motor (e.g. r0331, r0333).
Dependency: Refer to: r0331, r0370, r0373, r0374, r0376, r0377, r0382
Caution: The motors to be connected in parallel must be of the same type and size (same order no. (MLFB)).
The mounting regulations when connecting motors in parallel must be carefully maintained!
The number of motors set must correspond to the number of motors that are actually connected in parallel.
After changing p0306, it is imperative that the control parameters are adapted (e.g. using automatic calculation with
p0340 = 1, p3900 > 0).
For synchronous motors connected in parallel with p1300 >= 20, be following applies:
- the individual motors must be mechanically coupled with one another and the EMF must be aligned to one
another.
1-56
Calculated: -
Scaling: -
Unit selection: -
Max
20000 [Vrms]
Calculated: -
Scaling: -
Unit selection: -
Max
10000.00 [Arms]
Calculated: -
Scaling: -
Unit selection: -
Max
50
© Siemens AG 2012 - 2013 All Rights Reserved
SINAMICS G120D List Manual (LH14), 01/2013
Data type: FloatingPoint32
Dyn. index: MDS
Func. diagram: 6300, 6724
Factory setting
0 [Vrms]
Data type: FloatingPoint32
Dyn. index: MDS
Func. diagram: 6300
Factory setting
0.00 [Arms]
Data type: Unsigned8
Dyn. index: MDS
Func. diagram: -
Factory setting
1