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Parameters
7.3 Parameters
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:
An alarm is output and I_max is not reduced.
If value = 1:
An alarm is output and a timer is started. A fault is output if the alarm is still active after this timer has expired.
- for KTY/PT1000, the following applies: I_max. is reduced
- for PTC, the following is valid: I_max. is not reduced
If value = 2:
An alarm is output and a timer is started. A fault is output if the alarm is still active after this timer has expired.
If value = 12:
Behavior is always the same as for value 2.
For motor temperature monitoring without temperature sensor, when switching off, the model temperature is saved in
a non-volatile fashion. When switching on, the same value (reduced by p0614) is taken into account in the model
calculation. As a consequence, the UL508C specification is fulfilled.
p0611[0...n]
I2t motor model thermal time constant / I2t mot_mod T
Access level: 3
Can be changed: C2(1), T, U
Unit 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 current
(rated motor current, if the motor standstill current is not parameterized) up until a temperature rise of 63 % of the
continuously permissible winding temperature has been reached.
Dependency:
The parameter is only used for synchronous motors (p0300 = 2xx, 4) and synchronous reluctance motors (p0300 =
6xx).
See also: r0034, p0612, p0615
See also: F07011, A07012, A07910
NOTICE
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.
When exiting commissioning, p0612 is checked, and where relevant, is pre-assigned to a value that matches the
motor power, if a temperature sensor was not parameterized (see p0601).
Note
When parameter p0611 is reset to 0, then this switches out the thermal I2t motor model (refer to p0612).
If no temperature sensor is parameterized, then the ambient temperature for the thermal motor model is referred to
p0625.
p0612[0...n]
Mot_temp_mod activation / Mot_temp_mod act
Access level: 2
Can be changed: T, U
Unit group: -
Min:
-
Description:
Setting to activate the motor temperature model.
Bit field:
Bit
00
01
418
Signal name
Activate mot_temp_mod 1 (I2t)
Activate mot_temp_mod 2
Calculated: -
Scaling: -
Unit selection: -
Max:
20000 [s]
Calculated: CALC_MOD_ALL Data type: Unsigned16
Scaling: -
Unit selection: -
Max:
-
1 signal
Yes
Yes
Operating Instructions, 03/2019, FW V1.0, A5E44751205B AB
Data type: FloatingPoint32
Dynamic index: MDS, p0130
Function diagram: 8017
Factory setting:
0 [s]
Dynamic index: MDS, p0130
Function diagram: 8017, 8018
Factory setting:
0000 0010 0000 0010 bin
0 signal
FP
No
-
No
-
SINAMICS G120XA converter
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