2 Parameters
2.2 List of parameters
SINAMICS G120 Control Units CU240B-2/CU240E-2
368 List Manual (LH11), 01/2016, A5E33839529
The estimated moment of inertia is obtained according to the following formula:
Moment of inertia (J) = linear coefficient (p5314) * load torque + constant coefficient (p5315)
Dependency: The function module "Moment of inertia estimator" (r0108.10) must be activated for the "Moment of inertia precontrol"
function.
Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Refer to: p5310, r5311, p5312, p5313, p5314
Description: Sets the change time for the moment of inertia for the moment of inertia precontrol.
Lower values mean that faster changes are possible.
For a higher value, this estimated value is smoothed more significantly.
Dependency: Not visible with application class: "Standard Drive Control" (SDC, p0096 = 1)
Refer to: p1400, p1560, p1562
Description: Sets the boost factor for the copper losses at standstill for motor temperature models 1 and 3.
The entered factor is active for speed n = 0 [rpm].
This factor is linearly reduced down to 1 between speeds n = 0 ... 1 [rpm].
The following values are required to calculate the boost factor:
- stall current (I_0, p0318, catalog value)
- thermal stall current (I_th0, catalog value)
The boost factor is calculated as follows:
- p5350 = (I_0 / I_th0)^2
Dependency: Refer to: p0318, p0612, p5390, p5391
Refer to: F07011, A07012, A07014
Notice: When selecting a catalog motor (p0301), this parameter is automatically pre-assigned and is write protected.
Information in p0300 should be carefully observed when removing write protection.
Note: Temperature model 1 (I2t):
The following applies for firmware version < 4.7 SP6 or p0612.8 = 0:
- parameter p5350 is not active. Internally, a fixed boost factor of 1.333 is used as basis for the calculation.
The following applies from firmware version 4.7 SP6 and p0612.8 = 1:
- parameter p5350 becomes active as described above.
Description: Display and BICO output for faults and alarms of the motor temperature monitoring.
p5316[0...n] Moment of inertia precontrol change time moment of inertia / J_prectrl t J
Access level: 3 Calculated: p0340 = 1,3,4 Data type: FloatingPoint32
Can be changed: U, T Scaling: - Dyn. index: DDS, p0180
Unit group: - Unit selection: - Func. diagram: -
Min Max Factory setting
10.00 [ms] 5000.00 [ms] 500.00 [ms]
p5350[0...n] Mot_temp_mod 1/3 boost factor at standstill / Standst boost_fact
Access level: 2 Calculated: - Data type: FloatingPoint32
Can be changed: C(3), U, T Scaling: - Dyn. index: MDS
Unit group: - Unit selection: - Func. diagram: 8017
Min Max Factory setting
1.0000 2.0000 2.0000
r5389.0...8 CO/BO: Mot_temp status word faults/alarms / Mot_temp ZSW F/A
Access level: 2 Calculated: - Data type: Unsigned16
Can be changed: - Scaling: - Dyn. index: -
Unit group: - Unit selection: - Func. diagram: 8016
Min Max Factory setting
- - -
Bit field: Bit Signal name 1 signal 0 signal FP
00 Motor temperature measurement fault
active
Yes No -
01 Motor temperature model fault active Yes No -
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