Siemens CU240B-2 Parameter Manual page 81

p0610[0...n] Motor overtemperature response / Mot temp response
Access level: 3
Can be changed: C(3), T
Units group: -
Min
0
Description: Sets the system response when the motor temperature reaches the alarm threshold.
Value: 0:
1:
2:
Dependency: Refer to: p0601, p0604, p0605
Refer to: F07011, A07910
Note: The I_max reduction is not executed for PTC (p0601 = 1) or bimetallic NC contact (p0601 = 4).
The I_max reduction results in a lower output frequency.
If value = 0:
p0606 is not started, therefore only alarm A07910 is output.
If value = 1:
PTC: Same as value = 2 because there is no reduction in I_max.
KTY84: Alarm A07910 is output, I_max is reduced and p0606 is started. After p0606 has elapsed, fault F0711 is
set.
If value = 2:
Alarm A07910 is output and p0606 is started. After p0606 has elapsed, fault F0711 is set.
p0611[0...n] I2t motor model thermal time constant / I2t mot_mod T
Access level: 3
Can be changed: C(3), U, T
Units group: -
Min
0 [s]
Description: Sets the winding time constant.
The time constant specifies the warm-up time of the cold stator winding when loaded with the motor standstill cur-
rent up until a temperature rise of 63 % of the continuously permissible winding temperature has been reached.
Dependency: This parameter is only used for synchronous motors (p0300 = 2xx).
Refer to: r0034, p0612, p0615
Refer to: F07011, A07012, A07910
Caution: This parameter is automatically pre-set from the motor database for motors from the motor list (p0301).
When selecting a catalog motor, this parameter cannot be changed (write protection). Information in p0300 should
be carefully observed when removing write protection.
Note: When parameter p0611 is reset to 0, then this switches out the thermal I2t motor model (also refer to p0612).
If no temperature sensor is parameterized, then the ambient temperature for the thermal motor model is referred to
p0625.
© Siemens AG 2011 All Rights Reserved
SINAMICS G120 Control Units CU240B/E-2 Parameter Manual (LH11), 01/2011
No response only alarm no reduction of I_max
Alarm with reduction of I_max and fault
Alarm and fault no reduction of I_max
Calculated: -
Scaling: -
Unit selection: -
Max
2
Calculated: -
Scaling: -
Unit selection: -
Max
20000 [s]
Parameters
List of Parameters
Data type: Integer16
Data set: MDS
Factory setting
1
Data type: FloatingPoint32
Data set: MDS
Factory setting
0 [s]
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