Current Limit / Current Limit; Ci: Current Limit Variable / Curr Lim Var; Overvoltage Protection For Synchronous Motors / Overvolt_Protect - Siemens SINAMICS G150 Manual

Dependency: Refer to: p0634, p0635, p0636
p0640[0...n]

Current limit / Current limit

VECTOR_G Can be changed: C2(1, 3), U, T
Data type: FloatingPoint32
P-Group: Motor
Not for motor type: -
Min
0.00 [Arms]
Description: Sets the current limit.
Dependency: Refer to: r0209, p0323
Note: The parameter is part of the quick commissioning (p0010 = 1); this means that it is appropriately pre-assigned when
changing p0305, p0323 and p0338.
The current limit p0640 is limited to r0209 and p0323. The limit to p0323 is not realized if a value of zero is entered
there.
The resulting current limit is displayed in r0067 and if required, r0067 is reduced by the thermal model of the Motor
Module.
The torque and power limits (p1520, p1521, p1530, p1531) matching the current limit are automatically calculated
when exiting the quick commissioning using p3900 > 0 or using the automatic parameterization with p0340 = 3, 5.
For VECTOR the following applies (p0107):
p0640 is limited to 4.0 x p0305.
p0640 is pre-assigned for the automatic self commissioning routine (e.g. to 1.5 x p0305, with p0305 = r0207[1]).
p0640 must be entered when commissioning the system. This is the reason that p0640 is not calculated by the
automatic parameterization when exiting the quick commissioning (p3900 > 0).
For SERVO the following applies (p0107):
p0640 is pre-assigned as follows using the automatic parameterization (p0340 = 1, p3900 > 0) taking into account
the limits r0209 and r0323:
- for induction motors: p0640 = 1.5 x p0305
- for synchronous motors: p0640 = p0338
p0641[0...n]

CI: Current limit variable / Curr lim var

VECTOR_G Can be changed: T
Data type: Unsigned32 / FloatingPoint32
P-Group: Closed-loop control
Not for motor type: -
Min
-
Description: Sets the signal source for the variable current limit.
The value is referred to p0640.
p0643[0...n]

Overvoltage protection for synchronous motors / Overvolt_protect

VECTOR_G (n/M) Can be changed: C2(3)
Data type: Integer16
P-Group: Motor
Not for motor type: -
Min
0
Description: Sets the overvoltage protection for synchronous motors in the field-weakening range.
Value: 0:
1:
Dependency: Refer to: p0316, p1082, p1231, p9601, p9801
Notice: When the speed limiting is removed, the user is responsible for implementing a suitable overvoltage protection.
SINAMICS G130/G150
List Manual (LH2), 04/2014, A5E03263479A
No measure
Voltage Protection Module (VPM)
Calculated: CALC_MOD_ALL
Dyn. index: DDS, p0180
Units group: -
Scaling: -
Max
10000.00 [Arms]
Calculated: -
Dyn. index: CDS, p0170
Units group: -
Scaling: PERCENT
Max
-
Calculated: -
Dyn. index: MDS, p0130
Units group: -
Scaling: -
Max
1
2 Parameters
2.2 List of parameters
Access level: 2
Func. diagram: 5722, 6640
Unit selection: -
Expert list: 1
Factory setting
0.00 [Arms]
Access level: 3
Func. diagram: 6640
Unit selection: -
Expert list: 1
Factory setting
1
Access level: 3
Func. diagram: -
Unit selection: -
Expert list: 1
Factory setting
0
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